Clamp vs Contractor+: An AI estimating business app with a free plan and built-in payments, or an AI estimate that carries into a signed residential workflow with job costing on every plan
Contractor+ has a free plan, a lifetime Pro option, Estimatic AI, built-in card and ACH payments, financing and automatic overdue reminders. Clamp carries an AI estimate at direct cost into proposals, change orders, invoices, job costing, mileage and receipts on every plan, with 10 accounts and free subs on Teams.
Direct answer: Contractor+ is free for 5 estimates or invoices a month, and Pro is $29 a month billed annually, $49 month to month or $997 lifetime for one user, but job costing and the client portal start on Pro Team at $58 for 2 users. Clamp has job costing, change orders, mileage and receipts on every plan from $12.50 a month billed annually, and $83.33 covers 10 people. Choose Contractor+ for a free start, built-in card and ACH payments and financing.
Describe the job
Itemized draft at cost
Sample data. An AI estimate in Clamp starts with the job described the way you would say it, and the draft comes back as lines at direct cost, grouped by trade, before your markup goes on.
What it costs
| Situation | Clamp | Contractor+ |
|---|---|---|
| One person, entry plan | Solo, billed annually $12.50 a month $149.99 a year | Freedom (free) Free None. Pro, billed annually $29.00 a month $348.00 a year, calculated |
| A crew of 5 that needs job costing | Teams (up to 10 people), billed annually $83.33 a month $999.99 a year | Pro Team (2 users plus 3 extra), billed annually $118.00 a month $1,416.00 a year, calculated |
Every Clamp feature, next to Contractor+
Solo includes 28 of Clamp's 44 features. Contractor+'s pages show 18 of the 44 in full and 16 in part, across its plans.
Clamp plan
| Feature | Clamp | Contractor+ |
|---|---|---|
| CRM and leads | 3 of 5 | 0 of 5 |
| Email remindersEmail reminders before appointments, follow-ups, and scheduled installs, deliveries, and inspections. | ✓ Assistant and TeamsAssistant, $41.67 a month billed annually | PartlyOverdue invoices and estimate expiration |
| Customer appointment remindersHomeowners get an email before an appointment, with confirm and reschedule built in. | ✓ Assistant and TeamsAssistant, $41.67 a month billed annually | Not foundOn-My-Way texts only |
| Five-factor lead scoringA clear yes, no, or maybe on a lead before driving out. | ✓ Every planSolo, $12.50 a month billed annually | Not foundPipeline stages, no scoring |
| Lead reportingClose rate, revenue won, open pipeline, close rate by lead source, and lost leads by reason, on Home and the stats screen, with CSV and PDF export. Revenue by source does not exist; see _excluded. | ✓ Every planSolo, $12.50 a month billed annually | PartlyLead status and pipeline value; no close rate |
| Daily briefingOverdue invoices, detected trips, follow-ups, appointments, and open proposals in one morning view. | ✓ Every planSolo, $12.50 a month billed annually | PartlyDashboard: today's schedule, past-due invoices, to-dos |
| Estimating | 7 of 7 | 3 of 7 |
| Design agreementsPaid preconstruction sits in the document chain, so planning work is paid work. | ✓ Every planSolo, $12.50 a month billed annually | Not foundService contracts only |
| Itemized estimatesAssembly-based estimates with quantities and rates the contractor can inspect line by line. | ✓ Every planSolo, $12.50 a month billed annually | ✓ Every planFreedom capped at 5 a month |
| Estimate templatesSave an estimate as a template for work done often. | ✓ Every planSolo, $12.50 a month billed annually | ✓ Estimate templatesPlan not stated |
| Proposals with multiple package tiersGood, better, best packages in one proposal. | ✓ Every planSolo, $12.50 a month billed annually | Pro, $29Optional items for good, better, best |
| AI estimating from a plain-language job descriptionDescribe the job in plain words and get an itemized draft: assemblies, quantities, researched baseline rates, with the contractor's own saved rates taking over once set. | ✓ Every planSolo, $12.50 a month billed annually | ✓ Pro, $29Estimatic AI; 10 credits a month per support article, no limit on pricing page |
| Remodel and new-home estimatingOne estimator covers remodels and new homes and detects which one a description is. Detect is the default job type; a contractor can pick Remodel or New home per estimate, or set Kind of work to Remodeling to turn the choice off. | ✓ Every planSolo, $12.50 a month billed annually | Not foundNo job-type detection |
| Labor hours on estimatesEstimated labor hours, shown as a range, on every labor line, with an allowance for setup, cleanup, and material runs (15% by default) the contractor can change in Settings or per estimate. A planning figure; it never appears on proposals, PDFs, or the portal. | ✓ Every planSolo, $12.50 a month billed annually | PartlyLabor lines in hours you enter |
| Contracts and invoicing | 5 of 5 | 2 of 5 |
| Payment schedulesSplit a proposal into a deposit, milestone payments, and a final payment, then invoice each one from the signed contract. | ✓ Every planSolo, $12.50 a month billed annually | ✓ Deposit and milestonesPlan not stated |
| Sales tax on documentsAdd a sales tax rate or a flat amount to invoices and other documents, with collected tax totaled by quarter and year. The contractor enters the rate; Clamp does not look rates up. | ✓ Every planSolo, $12.50 a month billed annually | PartlyTax on documents, no tax report |
| Customer credits and refundsApply a customer's credit to an open invoice, record a refund, or adjust a balance, with the history kept on the job. Recorded only; Clamp moves no money. | ✓ Every planSolo, $12.50 a month billed annually | PartlyRefunds only, no credits |
| Change orders that update the contractScope changes get written up and tied to the original contract, so verbal changes stop costing money. | ✓ Every planSolo, $12.50 a month billed annually | PartlyOn invoices; help says none on estimates |
| Invoices tied to the contractEvery invoice belongs to the contract or change order it bills. | ✓ Every planSolo, $12.50 a month billed annually | ✓ Every planFreedom capped at 5 a month |
| Customer portal | 0 of 6 | 3 of 6 |
| Password-free customer portalThe homeowner opens a link. No account, no password, no app to install. | ✓ Assistant and TeamsAssistant, $41.67 a month billed annually | ✓ Pro Team, $58Secure link by phone or email |
| Unlimited documents and photos shared to the portalShare job documents and photos to the customer portal without a count cap, subject to per-item size limits. | ✓ Assistant and TeamsAssistant, $41.67 a month billed annually | ✓ Pro Team, $58Photos and files; limits not stated |
| E-signing on the homeowner's phoneDocuments get signed on the homeowner's own phone, no account required. | ✓ Assistant and TeamsAssistant, $41.67 a month billed annually | ✓ Pro, $29Automated contracts, signature pad |
| Several signers on one documentSend one document to up to five people, each signing their own line, see who has signed, and remind anyone who has not. | ✓ Assistant and TeamsAssistant, $41.67 a month billed annually | PartlyClient and contractor only |
| Project updates and decisions in the portalPost project updates to the customer's portal and ask the customer to make a decision, which they answer from their phone. | ✓ Assistant and TeamsAssistant, $41.67 a month billed annually | Pro Team, $58Updates; approvals on change orders only |
| Not delivered email handlingWhen a customer email Clamp sends bounces, the document is marked Not delivered so the contractor can fix the address and resend, or copy the link to text it. | ✓ Assistant and TeamsAssistant, $41.67 a month billed annually | Not foundNo outgoing email log |
| Expense tracking | 5 of 5 | 0 of 5 |
| Automatic GPS mileage trackingBackground trip detection, route maps, IRS rates, trips linked to the job that caused the drive. | ✓ Every planSolo, $12.50 a month billed annually | PartlyBeta; clock-in points per help, Start Trip per feature page |
| Automatic time on siteGPS geofence tracking of hours at the jobsite. | ✓ Every planSolo, $12.50 a month billed annually | PartlyGPS at manual clock-in; geofence upcoming |
| Receipts and expenses on the jobReceipts logged against the job they belong to. | ✓ Every planSolo, $12.50 a month billed annually | PartlyReceipt photos on client expenses |
| Purchase ordersCommitted costs captured between the estimate and the receipt. | ✓ Every planSolo, $12.50 a month billed annually | Not foundShopping lists only |
| Accounts payable and vendor billsVendor bills tracked and surfaced in the attention flows, with first-class vendor records. | ✓ Every planSolo, $12.50 a month billed annually | Not foundVendors for materials only |
| Job costing and reports | 3 of 3 | 2 of 3 |
| Job costingWhat the job actually cost, with a variance and catalog learning loop. | ✓ Every planSolo, $12.50 a month billed annually | ✓ Pro Team, $58 |
| Accountant export packageA package of the business's records prepared for an accountant. | ✓ Every planSolo, $12.50 a month billed annually | Pro Team, $58QuickBooks Online sync |
| Time reporting with CSV exportReported labor time with a time-tracking CSV export for payroll preparation and per-person rate decomposition. | ✓ Every planSolo, $12.50 a month billed annually | ✓ Time clock reportExcel by email; plan not stated |
| Jobsites and teams | 2 of 8 | 6 of 8 |
| Teams: up to 10 linked accountsUp to 10 accounts, including the owner, sharing one business. | ✓ TeamsTeams, $83.33 a month billed annually | ✓ Pro Team, $582 users, $20 to $29 per extra user |
| Role-based permissionsFive roles: owner, admin, staff, contributor, viewer. | ✓ TeamsTeams, $83.33 a month billed annually | ✓ Pro Team, $58Admin, Manager, Field Worker, custom |
| Unlimited subcontractor linkingSubs share jobsite photos and notes into the business account without consuming a seat. | ✓ TeamsTeams, $83.33 a month billed annually | Not foundExtra users are paid seats |
| Jobsites tab: jobs and schedule in one placeA Jobsites tab with Jobs and Schedule views. With Assistant each job has its own screen with its schedule, photos, and updates, and the Schedule view holds every install, delivery, inspection, appointment, and follow-up; Teams adds the crew and subs on each job, shaped by role. Subs invited to a job use it free and see their own jobs grouped by builder. | ✓ Assistant and TeamsAssistant, $41.67 a month billed annually | ✓ Pro, $29Jobs, work orders and visits |
| Job scheduleSchedule installs, deliveries, and inspections on each job, with the contractor, a supplier, or nobody yet on each item, and see them all in the Jobsites tab. Putting crew or subs on an item is the Teams shared schedule. | ✓ Assistant and TeamsAssistant, $41.67 a month billed annually | ✓ Pro, $29Visits and calendar |
| Shared job scheduleOne schedule for the business: installs, deliveries, and inspections visible to the team, with clash notes when dates collide. | ✓ TeamsTeams, $83.33 a month billed annually | ✓ Pro Team, $58Color-coded by assignee; no clash notes |
| Punch listsThe small final items that close a job out, tracked per job and shareable as a text message or a PDF. | ✓ Every planSolo, $12.50 a month billed annually | Pro, $29Post-inspection reports, PDF or SMS |
| Job site photosPhotos saved to the project with full-screen viewing. | ✓ Every planSolo, $12.50 a month billed annually | ✓ Task and job photosPlan not stated |
| Backup and offline | 3 of 5 | 2 of 5 |
| Full job workflow, offlineLeads, design agreements, estimates, proposals, change orders, and invoices on the phone, working without a connection. | ✓ Every planSolo, $12.50 a month billed annually | Not foundOffline use not stated |
| Cloud backupBusiness data backed up to the cloud and restorable on a new device. | ✓ Assistant and TeamsAssistant, $41.67 a month billed annually | ✓ Cloud software |
| Business portal: read-only web viewA read-only view of the business in a browser. | ✓ Assistant and TeamsAssistant, $41.67 a month billed annually | ✓ Web appFull web app, not read-only |
| Device backup, restore, CSV export, bulk importLocal backup and restore with CSV export and bulk import. | ✓ Every planSolo, $12.50 a month billed annually | PartlyCSV or Excel import only |
| No account required to startThe app opens to local use; an account is needed only for server features or subscribing. | ✓ Every planSolo, $12.50 a month billed annually | Not foundFree plan is an account |
| Only in Contractor+ | Where Contractor+ is ahead | |
| Built-in payments and client financing | Your own payment link | ✓ Card and ACH on Pro; financing offers |
| Business phone system and chat | Not in Clamp | ✓ Pro Team |
| PRO website | Not in Clamp | ✓ Pro |
| Gantt chart and recurring tasks | Not in Clamp | ✓ Project management |
| Automated overdue invoice texts | Email reminders (Assistant) | ✓ Email, SMS or both |
Nothing here matches. Pick All or another filter.
Contractor+ column from its pricing page, feature pages and help center, checked October 14, 2026. Not found means not on those pages, not that Contractor+ can't do it another way. Partly means something narrower than the Clamp feature. No product was tested against another.
Where each Contractor+ answer comes from
- Contractor+ pricing plans Contractor+, accessed October 14, 2026
- Contractor+ pricing Contractor+, accessed October 14, 2026
- Changes to feature access by membership tier Contractor+, accessed October 14, 2026
- Features available in Contractor+ free version after trial Contractor+, accessed October 14, 2026
- Freedom plan monthly limits Contractor+, accessed October 14, 2026
- Contractor+ AI estimating software Contractor+, accessed October 14, 2026
- How to build better estimates with Estimatic AI Contractor+, accessed October 14, 2026
- Different types of line items in Contractor+ Contractor+, accessed October 14, 2026
- Estimate templates in Contractor+ Contractor+, accessed October 14, 2026
- How to schedule a payment and request a deposit Contractor+, accessed October 14, 2026
- How to create a change order on a signed estimate Contractor+, accessed October 14, 2026
- How to send a change order for client approval Contractor+, accessed October 14, 2026
- Add contracts to your estimates and invoices and sign them Contractor+, accessed October 14, 2026
- Automated client agreements Contractor+, accessed October 14, 2026
- Configuring estimate and invoice settings Contractor+, accessed October 14, 2026
- Refund a client payment or correct a payment recorded by mistake Contractor+, accessed October 14, 2026
- Enhancing client experience with the Contractor+ client portal Contractor+, accessed October 14, 2026
- Field service client portal Contractor+, accessed October 14, 2026
- Request a client to sign a job completion certificate Contractor+, accessed October 14, 2026
- Project management software for contractors Contractor+, accessed October 14, 2026
- How to create and assign visits after creating a job Contractor+, accessed October 14, 2026
- Configuring the Contractor+ schedule calendar Contractor+, accessed October 14, 2026
- Field service scheduling software Contractor+, accessed October 14, 2026
- Email and SMS templates in Contractor+ Contractor+, accessed October 14, 2026
- How to configure overdue reminders for invoices Contractor+, accessed October 14, 2026
- Ensuring Contractor+ emails reach clients Contractor+, accessed October 14, 2026
- Adding roles and managing permissions of your team members Contractor+, accessed October 14, 2026
- Why sub-users have limited access to new features Contractor+, accessed October 14, 2026
- Enhance efficiency with Contractor+ mileage log Contractor+, accessed October 14, 2026
- Mileage tracking Contractor+, accessed October 14, 2026
- Streamline time management with Contractor+ time clock Contractor+, accessed October 14, 2026
- How to generate a time clock report Contractor+, accessed October 14, 2026
- How to add or import expenses to your invoice Contractor+, accessed October 14, 2026
- How to add unbilled materials and expenses to a job invoice Contractor+, accessed October 14, 2026
- Post-inspection reports Contractor+, accessed October 14, 2026
- Shopping lists Contractor+, accessed October 14, 2026
- Advanced dashboard Contractor+, accessed October 14, 2026
- Detailed reporting Contractor+, accessed October 14, 2026
- Deal flow tracker Contractor+, accessed October 14, 2026
- Syncing Contractor+ invoices with QuickBooks Online Contractor+, accessed October 14, 2026
- How to import data to Contractor+ Contractor+, accessed October 14, 2026
Verdict
Clamp may fit when
- You run residential remodels where the signed scope changes and you want each change priced and signed as its own change order
- You want job costing, receipts and mileage on the job from the first plan, not from a team tier
- You estimate at direct cost and apply your company markup once
- You want automatic trip detection at the IRS rate, attached to the job
- You are a crew of up to 10 and want one price, with subs invited free and never seeing your prices
- You work where the signal drops and need estimates, change orders and invoices offline
Contractor+ may fit when
- You want to start free and send up to 5 estimates or invoices a month without paying
- You would rather pay once: Pro is $997 lifetime for one user
- You want card and ACH payments and client financing inside the app
- You want the AI to read photos, blueprints or a competing quote and price from your cost book or supplier pricing
- You want automatic overdue invoice reminders by text as well as email
- You want a business phone system, team and client chat, a PRO website or a Gantt chart view
Before you compare them
- Both products turn a job description into an itemized AI estimate you edit, and both have contracts with e-signature, payment schedules, invoices, a client portal, job costing, time tracking and a mileage log. The difference is which plan each feature starts on and how deep it goes.
- Contractor+'s lowest price is its free Freedom plan, capped at 5 estimates or invoices a month. Its Pro plan is $29 a month billed annually, $49 monthly or $997 lifetime for one user. Clamp's lowest plan is Solo at $12.50 a month billed annually, with no free plan beyond one free AI estimate, 3 free AI credits and the first month of Solo free on monthly billing.
- Contractor+'s job costing, client portal and QuickBooks Online sync start on Pro Team at $58 a month billed annually for 2 users. Clamp's job costing, change orders, invoices, receipts and mileage are on every plan; the customer portal and e-signing start on Assistant.
- Contractor+ handles change orders as updates to an invoice; its help center says signed estimates have no direct change order feature. Clamp has change orders on every plan, tied to the original contract.
- Contractor+ processes card and ACH payments and offers client financing. Clamp does not process payments; you add your own payment link and record what was paid.
- Contractor+'s mileage log is in beta and its own pages describe it two ways; a link from a trip to a job is not stated. Clamp detects trips automatically and attaches each confirmed trip to the job.
- Contractor+'s help center lists 10 Estimatic AI credits a month on Pro and unlimited on Pro Team; Clamp has 3 free, then 25 a month on Assistant and 50 on Teams. Contractor+ does not define a credit on the pages read, so the counts are not directly comparable.
- 'Not found' on this page means not found on Contractor+'s pricing page, feature pages or Help Center on 2026-10-14. It does not mean Contractor+ cannot do it another way.
- Neither product was tested against the other. No speed or accuracy claim is made.
Workflow
| Feature | Clamp | Contractor+ |
|---|---|---|
| AI estimate from a description | Describe the job in plain words; the draft lists what it included, excluded and assumed. One free on the website; 3 free credits in the app, then 25 a month on Assistant and 50 on Teams | Estimatic AI: describe the job and add photos, blueprints, drawings or a competing quote. 10 credits a month on Pro per its help center, unlimited on Pro Team; from Pro, not on Freedom's feature list |
| Whose prices fill the lines | Every line at direct job cost; your saved rate replaces the baseline line by line. No price-sheet import | Your cost book and line item templates, supplier pricing, or a Regional Labor Pricing Index |
| Revising the draft | Type or say what to change; Clamp changes only that, keeps numbers you typed and shows each change with its price before you apply it. Half a credit | Edit any line; Plan Review drafts groups, line items, quantities and units before pricing |
| Markup | One company markup from your overhead and profit goal, applied once and shown apart from the direct cost | AI-defined, default or no markup on AI drafts; default material and labor markup and labor rate in settings |
| Good, better, best options | Allowance lines for selections not yet made, and a Decisions needed list after signing | Optional line items the client selects, on Pro; assembly, labor, material, equipment and permit line types |
| Estimate to signed contract | Design agreement, estimate and proposal on every plan; proposals e-signed in the customer portal on Assistant and Teams | Automated contracts on Pro: a contract on an estimate or invoice, signed on a signature pad by the client only or both parties. A design or preconstruction agreement was not found on its official pages |
| Change orders | Every plan: tied to the original contract, priced and billed, e-signed in the portal on Assistant and Teams | An update to an existing invoice that the client approves, denies or questions through a link; on a signed estimate, no direct feature, so new items are grouped in the estimate and resent |
| Payment schedule | Deposit, milestone payments and a final payment from the signed proposal; milestones tied to job events with a checklist of evidence | A required deposit, then milestone or date payments in percent or dollars; plan not stated |
| Invoices | Unlimited on every plan; each invoice belongs to the contract or change order it bills | Every plan; Freedom is capped at 5 estimates or invoices a month combined |
| Payments | Not processed by Clamp: add your own payment link and record what was paid; no financing | Card and ACH and client financing on Pro; card 3.5% + $0.30 and ACH 1.5% on Free; paid-plan rates not found on the pages read |
| Overdue invoice reminders | Email reminders from Assistant; you send a payment reminder from the invoice | Automatic overdue reminders by email, text or both, repeating until paid |
| Job costing | Every plan: receipts, vendor bills, time on site and labor against the estimate, reviewed at close | Pro Team and up: cost tracking and profitability, job-level costs against revenue; vendor bills not found on its official pages |
| Receipts | Receipts logged against the job they belong to, every plan, and counted in job cost | Expenses with optional receipt photos, marked billable and imported onto a client invoice; materials recorded against a job task |
| Business mileage log | Automatic trip detection, confirmed per trip, attached to the job, at the IRS rate for its date, every plan | In beta. Help center: distance between clock-in and clock-out locations, plus manual entries. Feature page: Start Trip and End Trip at the IRS or a company rate, CSV or PDF reports. A link to the job is not stated |
| Time on site | Automatic time on site recorded against the job, every plan; not a GPS crew clock with geofencing | Crew clock in and out with location logged at each punch, tied to a job, work order or task; geofence-triggered logging listed as upcoming |
| Team pricing and roles | Teams: up to 10 accounts for $83.33 a month billed annually or $99.99 monthly | Pro Team: 2 users for $58 a month billed annually or $98 monthly, extra users $20 or $29; Admin, Manager, Field Worker and custom roles; Max $500 a month for an unlimited team |
| Subcontractor access | Unlimited free sub invites on Teams; subs see the job and schedule, never your prices | Extra users are paid logins controlled by permission groups; a subcontractor role was not found on its official pages |
| Customer portal | Sign, view invoices, photos and schedule, answer decisions; Assistant and Teams | Pro Team: a secure link with no password; clients view estimates, invoices, jobs, contracts, photos and documents, pay balances and submit requests |
| Scheduling | A job schedule on Assistant; a shared schedule your crew and subs confirm on Teams | Scheduling on Pro; a color-coded calendar by assignee with two-way calendar sync; Gantt chart view |
| Lead qualification | A five-question lead score on the first call, every plan | Pipeline stages with dollar value by stage; lead scoring was not found on its official pages |
| Accounting | An accountant export package; no general ledger, payroll, bank feeds or tax filing | QuickBooks Online sync of invoices, payments and change orders on Pro Team |
| Working offline | Leads, estimates, proposals, change orders and invoices work with no signal on every plan; AI drafts, e-signing and the portal need a connection | Offline use not found on its official pages; web, mobile and tablet apps |
What was and was not tested
What was compared: Hands-on testing of either product. Neither was tested against the other, and no speed or accuracy claim is made. Documented, not tested.
| Statement | Basis |
|---|---|
| Published by Clamp, using each product's own pricing pages and documentation. | Clamp's own statement |
| One person, billed annually: Contractor+ Pro is $348 a year and Clamp Solo is $149.99. Contractor+ Freedom is free for 5 estimates or invoices a month, and its $997 lifetime Pro equals about 2.9 years of annual Pro (calculated). | Calculated from published prices |
| Five people with job costing, billed annually: Contractor+ Pro Team is $1,416 a year (calculated); Clamp Teams is $999.99 for up to 10 accounts. The plans are not equivalent: Pro Team includes payments, financing, unlimited AI, a phone system, chat and QuickBooks Online sync that Clamp does not offer, and Teams includes change orders on signed contracts, decisions, automatic job mileage and free sub access that Contractor+ does not document. | Calculated from published prices |
| Contractor+'s pages do not agree on every price: its pricing page shows Pro at $29 and Pro Team at $58 a month while its meta description lists $49 and $98, and its help center gives $49 a month or $348 a year for Pro. This page reads $29 and $58 as the annual-billing rates and $49 and $98 as month to month. | Verified against a published source |
| Contractor+'s help center lists 10 Estimatic AI credits a month on Pro; its pricing page lists Estimatic AI on Pro without a limit. | Verified against a published source |
Switching
- Contractor+ documents importing leads, clients, vendors and materials from CSV or Excel, but no export was found on its official pages; ask how to get your estimates and invoices out before you cancel.
- If you bought lifetime Pro, weigh what you already paid against what you need next; the lifetime purchase does not carry Pro Team features.
- If you collect card or ACH payments or offer financing in Contractor+, set up your own payment link before you switch.
- If you rely on automatic overdue texts, plan to send reminders from the invoice or use Clamp's email reminders on Assistant.
- Do not assume your Contractor+ cost book can be imported into Clamp; save your rates in the app as you price your first jobs.
- Finish open jobs where they started; start new ones in Clamp, beginning with the free AI estimate.
Questions
Is Contractor+ free?
Yes, with limits. The Freedom plan is $0 for up to 250 leads and clients and, since January 2026, 5 estimates or invoices a month. Scheduling, team management and analytics need a paid plan, and card payments cost 3.5% + $0.30 on Free. Clamp has no ongoing free plan: you get one free AI estimate on clamppro.com, 3 free AI credits in the app, and the first month of Solo free on monthly billing.
Is the Contractor+ $997 lifetime plan worth it?
Contractor+'s help center lists Pro for one user at $997 lifetime, against $348 a year billed annually, so it pays off after about 2.9 years of Pro (calculated). Lifetime Pro does not include the Pro Team features: job costing, the client portal and QuickBooks Online sync. Clamp has no lifetime option; Solo is $149.99 a year with job costing, change orders, mileage and receipts included.
How do Contractor+ Estimatic AI and Clamp AI estimates compare?
Estimatic AI drafts from a description plus photos, blueprints, drawings or a competing quote, and prices from your cost book, supplier pricing or a regional labor index. Contractor+'s help center lists 10 AI credits a month on Pro and unlimited on Pro Team. Clamp drafts from a plain description at direct cost, lists what it included, excluded and assumed, and applies one company markup; 3 free credits, then 25 a month on Assistant or 50 on Teams.
Does Contractor+ do change orders?
Partly. Contractor+ sends a change order as an update to an existing invoice; the client approves, denies or requests changes through a link, and the invoice updates on approval. For a signed estimate, its help center says there isn't a direct change order feature and suggests grouping new items inside the estimate and resending it. Clamp has change orders on every plan, tied to the original contract and billed on their own invoice.
How much do Contractor+ and Clamp cost for a crew of five?
Contractor+ Pro Team is $58 a month billed annually for 2 users, plus $20 a month for each extra user, so five users come to $118 a month or $1,416 a year (calculated); month to month it is $98 plus $29 per extra user. Pro Team is the first plan with job costing. Clamp Teams covers up to 10 accounts for $83.33 a month billed annually, with unlimited free sub invites.
How do Contractor+ and Clamp track mileage and receipts?
Contractor+'s mileage log is in beta: its help center describes distance calculated between clock-in and clock-out locations, while its feature page describes Start Trip and End Trip at the IRS or a company rate; a link to the job is not stated. Receipt photos attach to billable client expenses. Clamp detects trips automatically, you confirm each one at the IRS rate for its date, and receipts are logged against the job on every plan.
Does Contractor+ take card payments?
Yes. Card and ACH payments and client financing start on Pro, and its free plan charges 3.5% + $0.30 per card payment and 1.5% for ACH. Overdue invoice reminders can go out automatically by email, text or both. Clamp does not process payments: you add your own payment link and record what was paid. If collecting payment inside the app matters, Contractor+ is the stronger fit.
Sources & provenance
- Contractor+ pricing plans Contractor+ Help Center (official source)
- Contractor+ pricing Contractor+ (official source)
- Changes to feature access by membership tier Contractor+ Help Center (official source)
- Features available in Contractor+ free version after trial Contractor+ Help Center (official source)
- Freedom plan monthly limits Contractor+ Help Center (official source)
- Contractor+ AI estimating software Contractor+ (official source)
- How to build better estimates with Estimatic AI Contractor+ Help Center (official source)
- Different types of line items in Contractor+ Contractor+ Help Center (official source)
- How to schedule a payment and request a deposit Contractor+ Help Center (official source)
- How to create a change order on a signed estimate Contractor+ Help Center (official source)
- How to send a change order for client approval Contractor+ Help Center (official source)
- Add contracts to your estimates and invoices and sign them Contractor+ Help Center (official source)
- Automated client agreements Contractor+ (official source)
- Configuring estimate and invoice settings Contractor+ Help Center (official source)
- Field service client portal Contractor+ (official source)
- Enhancing client experience with the Contractor+ client portal Contractor+ Help Center (official source)
- Project management software for contractors Contractor+ (official source)
- Configuring the Contractor+ schedule calendar Contractor+ Help Center (official source)
- How to configure overdue reminders for invoices Contractor+ Help Center (official source)
- Adding roles and managing permissions of your team members Contractor+ Help Center (official source)
- Why sub-users have limited access to new features Contractor+ Help Center (official source)
- Enhance efficiency with Contractor+ mileage log Contractor+ Help Center (official source)
- Mileage tracking Contractor+ (official source)
- Streamline time management with Contractor+ time clock Contractor+ Help Center (official source)
- How to add or import expenses to your invoice Contractor+ Help Center (official source)
- How to add unbilled materials and expenses to a job invoice Contractor+ Help Center (official source)
- Detailed reporting Contractor+ Help Center (official source)
- Deal flow tracker Contractor+ (official source)
- Syncing Contractor+ invoices with QuickBooks Online Contractor+ Help Center (official source)
- How to import data to Contractor+ Contractor+ Help Center (official source)
- Clamp Pricing Clamp Research
- The Clamp Method Clamp Research
- Clamp free AI estimate Clamp Research
- How to generate an AI construction estimate from a project description Clamp Research
- Clamp FAQ: AI credits and revising an estimate Clamp Research
Changes: Oct 15, 2026: Initial publication.