Terms of Use

Effective Date: September 4, 2026 · Last Updated: November 12, 2026

These Terms of Use are an agreement between you and Contractor School.

1. Acceptance

By downloading or using Clamp, or by using the free web estimator on clamppro.com, you agree to these Terms. If you do not agree, do not use the App or the estimator. Section 12 applies to the free web estimator, section 6a applies to both, and the other sections apply to the App.

2. Description of Service

Clamp is a local-first job-workflow app for residential contractors: lead scoring, design agreements, estimates, proposals, change orders, invoices, mileage tracking, time on site, receipts, photos, customer document signing, vendor bills and payments, job costing, an accountant export, and — on paid tiers — cloud backup, a web view, AI estimate drafting, and team features.

3. Subscription Tiers

Clamp is offered as Clamp Solo, Clamp Assistant, and Clamp Teams, each available monthly or annually. Higher tiers replace your current plan — Assistant replaces Solo, and Teams replaces Assistant or Solo — so you hold one plan at a time and are never billed for both. Billing is handled by Apple or Google. Subscriptions auto-renew unless cancelled at least 24 hours before the end of the current period. Refunds are governed by the applicable store's policy.

4. Free Trial

New subscribers may be eligible for a 1-month free trial on the Solo monthly plan, applied by Apple or Google as an introductory offer at the point of purchase. Trial eligibility is determined by the store. No trial is offered on Teams. Upgrading during a trial ends the trial and starts the new subscription immediately.

5. User Content and Data

You own your business data. Clamp is local-first, and you are responsible for maintaining backups of your data. If your plan includes cloud backup and you enable it, your data is also stored with us as described in the Privacy Policy; this does not change your ownership of it.

6. Acceptable Use

You may not use the App for unlawful purposes, reverse engineer it, or abuse the document signing, customer portal, or team invitation features.

6a. Clamp’s Pricing Catalog

Clamp provides a collection of assemblies, line items, descriptions, labor hours, rates, and related pricing information, along with the software and methods used to prepare estimates. We call this collection and pricing system the “Catalog.”

Contractor School and its licensors keep the rights that applicable law gives them in the Catalog. Access to Clamp does not transfer those rights to you. We do not claim exclusive ownership of individual facts, ordinary construction methods, or information you develop independently. This section also sets limits on how you may access and use the Catalog.

What you may do. While you have authorized access, you may use the Catalog through the App, clamppro.com, and connections we provide to estimate, price, plan, and sell your own business’s actual or prospective jobs.

You may keep, edit, export, analyze, and share the estimates, proposals, invoices, and other job records you create. You may use them with your customers, team, subcontractors, accountants, advisors, insurers, lenders, and software or AI services that help run your business. This includes keeping a history of your jobs and using that history to improve your own estimating.

You may make the copies needed for normal installation, use, and backup of the App. These permissions do not authorize extracting the Catalog as a separate price book or database.

Your business data. Your customer information, actual costs, markups, quantities, independently developed rates, and original custom line items remain your business data under section 5.

Including Catalog information in a job record does not transfer ownership of the underlying Catalog. You may keep using that job record for the business purposes described above, including after your subscription ends.

Copying, renaming, or reformatting Catalog information does not make it independently developed information. These limits do not prevent you from setting your own prices, using other lawful sources, or learning from your actual jobs.

What you may not do. Except for the uses expressly allowed above, or uses that applicable law does not allow us to restrict, you may not:

Systematic collection includes coordinated collection over time, even when each request or copy is small. Ordinary use and analysis of genuine job records, including exports to your accounting or business software, is not prohibited collection merely because it involves many records.

Software, AI agents, and service providers. Software and AI agents may automatically request new prices from Clamp only through an interface we expressly provide for automated pricing. They must use your authorized account, follow the limits disclosed for that interface, and act for your own business’s jobs.

This does not prevent software from storing or processing job records you are permitted to export. You may use those records with a private business assistant or knowledge base.

You may allow service providers to process permitted records on your behalf. You may not knowingly provide an extracted Catalog collection for a provider’s separate product, for resale, or for shared or general-purpose model training. You are responsible for the instructions and access you authorize.

If these limits are broken. We may suspend or end the affected access for a violation of this section. We may temporarily restrict access when we reasonably believe ongoing misuse threatens the Catalog or our services. Where practical, we will explain the issue and allow a chance to correct it, but we may act immediately against deliberate extraction or circumvention.

We may seek a court order, damages, or other remedies available under applicable law. At our request, you must stop the prohibited use and delete copies made or collected in violation of this section, except records that must be preserved by law. This does not require deleting your legitimate business data or job records.

These measures do not waive any rights you have under applicable law or the applicable app store’s terms.

After access ends. The restrictions in this section continue to apply to Catalog information obtained while these Terms applied to you. Your permission to keep and use legitimate business data and job records also continues. Ending access does not erase claims arising from an earlier violation.

7. AI Features

AI-generated drafts are suggestions. You are responsible for reviewing all content before sending it to a customer.

Improving AI estimates. By default, Clamp keeps a copy of the job descriptions you write, the drafts they produce, your corrections, and the job's ZIP code, and uses that copy to improve estimate accuracy, including to train and evaluate Clamp's own estimating models. We do not sell or share it. You may turn this off, and delete what has been collected, at any time in Settings → AI & Data. This is described in full in the Privacy Policy.

You keep ownership of your content. Nothing in this section gives Clamp ownership of your job descriptions or estimates, and turning the setting off does not change your rights to your own data.

7a. Financial Records and Job Costing

Clamp’s job costing, vendor balances, retainage tracking, and accountant export are operational tools. They record the costs, obligations, billings, and payments you enter, and derive job performance from them. They are not financial statements, they do not determine your taxable income, and they do not constitute accounting, tax, or legal advice. You are responsible for reviewing exported records with your accountant or tax preparer before relying on them for any filing.

Amounts Clamp reports as incurred reflect what you have recorded. The accuracy of your job costs depends on the completeness of the records you enter.

7b. Connected AI Apps

Optional access, at your choice and risk. With Clamp Assistant or Teams you may connect an AI app you choose to your Clamp account. Connecting one is your decision, and you make it at your own risk: you choose the app, its permissions and what it may read, and you may end the connection at any time. Permissions allow repeated requests until the connection ends, within your current account access and our limits. The Privacy Policy, section 14, describes what is disclosed and what we keep.

A separate service. A connected AI app is provided under its own provider's terms. We do not operate that service or control how it independently handles information. To the extent the law allows, we are not responsible for that provider's independent acts, omissions, answers or availability. This does not excuse our own breach of these Terms or of our obligations under applicable law. Section 10 applies to claims against us.

Your authority and responsibilities. You must have the authority to connect the app and to disclose the information it may read. You must give any required notice, get any required consent, and follow the law and your confidentiality obligations, including toward customers, employees, subcontractors and anyone else whose information is in your records. Choose permissions and an AI account suited to business information, and do not share personal information the task does not need. Review anything the app prepares before you rely on it, bring it into your records, or send it to a customer.

Teams. A team member may connect an AI app only with the business's authorization and for its work. The connection stays within that member's current role and assignments, and within what the business allows for that role. The business owner accepts this section for the business; team members cannot connect an AI app until the owner has, and until the owner or an admin turns team connections on. Owners and admins may end any team member's connection. Before a business lets team records reach an AI provider, it must tell the affected team members which records, for what purpose and to whom, and get consent where the law requires it. Permission to see a record in Clamp is not by itself permission for every outside use.

AI credits. An app may use AI credits only if you allow spending. That permission covers more than one pricing request without a new confirmation in Clamp for each. You are responsible for valid charges within the permission and limits you set. Email [email protected] promptly if you believe a charge was duplicated, wrong, or outside what you allowed. We will look into it and correct charges made in error.

Misleading instructions. An AI app may follow misleading instructions in a page, file, message or other content it reads. This can cause unexpected requests or credit use within its permissions. Allow only the access your work needs. Clamp enforces the connection's permissions and your account access. Through the connection, the app cannot send anything to your customers, or change or delete records already in Clamp on its own, and an estimate it sends arrives for your review. A change it proposes takes effect only if you accept it in the Clamp app. You are responsible for what you accept, including any estimate line, design item or document wording an AI app wrote. We cannot recall information already disclosed, or control what the app does through other services.

The Catalog and limits. Section 6a applies to access through a connected AI app. We may limit request volume, returned data, credit use or other activity to protect accounts, the Catalog and the service. We may suspend or end a connection for suspected unauthorized use, a security risk, a violation of these Terms, or loss of eligibility, at once when needed. We will give notice when it is reasonably practical, unless notice would create a security risk or break the law. Ending a connection does not cancel your subscription or forfeit unused credits. Valid charges made before access ends stand, subject to correction of errors and applicable law.

Claims by others. If you are the business subscribing to Clamp, you will defend and indemnify Contractor School against claims brought by someone else, and the reasonable defense costs and damages that result, to the extent they are caused by your unlawful disclosure of personal information through a connected AI app, or by your material breach of this section's authority, notice or consent requirements. This does not apply to the extent a claim results from our own negligence, willful misconduct, breach of these Terms, or violation of law.

We will tell you promptly about a claim and cooperate reasonably at your expense. A delay in telling you reduces your obligation only to the extent it materially harms your defense. You may control the defense using reasonably qualified counsel. Neither of us may settle a claim in a way that admits fault by the other, or puts an obligation other than payment on the other, without that party's written consent, which must not be unreasonably withheld.

8. Document Signing

The App provides electronic signature functionality. You are responsible for ensuring electronic signatures are legally sufficient for your purposes in your jurisdiction.

9. Teams

A Clamp Teams subscription covers up to 10 seats in your business. You are responsible for the people you invite and for having a lawful basis to enter their contact details and hold their work records. Jobsite links for outside subcontractors do not count toward your seats.

10. Disclaimers, Limitation of Liability, Indemnification

The App is provided "as is." To the maximum extent permitted by law, our aggregate liability is capped at the fees you paid in the twelve months preceding the claim.

11. Termination, Governing Law, Changes, Contact

Governing law. These Terms are governed by the laws of the State of Ohio, without regard to its conflict-of-laws rules. Any dispute not subject to another mandatory forum under applicable law will be brought in the state or federal courts located in Cuyahoga County, Ohio. This does not deprive you of protections that apply to you under the law of your state of residence.

Rights that cannot be waived. Nothing in these Terms limits any rights or remedies that cannot lawfully be waived or limited. If any part of these Terms is found unenforceable, the rest remains in effect.

Changes to these Terms. We may update these Terms. When a change adds a restriction or reduces your rights, we will tell you in the App or by email at least 30 days before it applies to you, and we may ask you to accept it. If you do not agree, you may stop using Clamp and cancel before the change applies; using Clamp after that date means you accept it. A change does not make something you did before it applied a violation. Other changes apply when we post them, with the new date at the top of this page.

Questions: [email protected].

12. Free Web Estimate

The free estimator at clamppro.com/estimate turns a job description into an automated estimate draft. It is offered free of charge, and these points apply to it:

We may change, limit, or withdraw the free estimator at any time.