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Terms of Service

Last updated: September 30, 2026

These terms are an agreement between you and GPULogy AI LLC, a Texas limited liability company (“GPULogy”, “we”, “us”). They cover everything we call the Service:

  • LetThemBuild, our product: the desktop app for Mac, Windows and Linux, the command-line tool, and the extensions for VS Code and Cursor.
  • LetThemChat, the web app of LetThemBuild at letthemchat.com, and the LetThemChat app for iPhone.
  • The websites letthembuild.com and letthemchat.com, and the account behind all of the above.

By creating an account or using any part of the Service you agree to these terms and to our Privacy Policy. If you use the Service on behalf of a company, you confirm you can bind that company, and “you” means the company.

1. Accounts

  • You must be at least 18 years old to use the Service.
  • You sign in with a Google or Microsoft account. You are responsible for what happens under your account and for keeping the devices that are signed in secure.
  • One person, one account. Accounts may not be shared, sold or transferred.

2. What the Service does

The Service runs discussions between AI assistants (from Anthropic, OpenAI, Google and xAI) on your behalf: each answers, reviews the others, and the result is an answer they agree on. In the desktop app the assistants can also read files, run commands and edit code on your machine, but only when you approve each action.

You choose whose credentials run a discussion:

  • Your own API keys. The AI provider bills you directly under its own terms. You are responsible for the keys you connect and for complying with each provider’s terms.
  • A coding CLI you already pay for (desktop only). The discussion goes from your machine to that provider; the provider’s subscription and terms apply.
  • Our Keys. You buy credit in advance and we draw it down as you use it, as described in section 6.

3. AI output and actions

AI-generated content can be wrong, incomplete or unsafe. Discussions, reviews and “agreed answers” are provided as-is. You are responsible for checking anything important before you rely on it, and for the consequences of using it.

When you approve an action in the desktop app — a command, a file edit, a browser step — that action runs on your machine with your permissions. Read what you approve. We are not responsible for what an approved action does to your files, systems or accounts.

4. Acceptable use

You agree not to:

  • use the Service for anything unlawful, or to build or distribute malware, spam or fraud;
  • violate the rights of others, including their privacy and intellectual property;
  • attempt to access other users’ data, or to probe, bypass or overload our systems;
  • use the AI providers through the Service in ways their own usage policies forbid, or to build a competing model from their output;
  • resell the Service, or share paid features with people who are not on your account or team.

5. Plans and subscriptions

  • The Service has a free tier and two paid plans, Pro and Team. What each includes is described on the pricing page at the time you buy.
  • Paid plans are billed monthly and renew until cancelled. You can cancel at any time from Settings or at paddle.net; cancellation stops future renewals and your plan runs to the end of the period already paid for.
  • We may change prices. Any change to a subscription you already have takes effect at the next renewal after at least 30 days’ notice by email.
  • Prices are shown in the currency at checkout and exclude taxes Paddle is required to add for your country.

6. Payments

Our order process is conducted by our online reseller Paddle.com, which is the Merchant of Record for all our orders. Paddle handles all payments, billing enquiries, taxes and refunds, and Paddle’s terms apply to every purchase alongside these.

Credit for our keys. Credit is bought in advance in the amounts offered in the app and drawn down as discussions run on our keys. Each request is charged at what the AI provider charges us for it, plus the payment and routing fees we pay to process it, plus a 10% service charge on requests we serve, exactly as shown in your usage history. Running on your own key or your own CLI carries no such charge — you pay the provider directly and nothing is added. Credit does not expire, cannot be transferred to another account, and cannot be exchanged for cash except where a refund is issued under section 8.

Referral credit. Inviting a friend can earn credit for our keys, under the rules on our Invite a friend page, which may change or end for the future with notice there. It is earned only when the person you invited buys their own Pro or Team plan, and paid to both of you after the 14-day refund window, provided the purchase has not been refunded or charged back. Like all credit it has no cash value and cannot be transferred; credit obtained by abuse of the program may be withheld or removed.

Receipts and billing history are available in Settings and from Paddle at paddle.net.

7. Team plans

  • A Team plan is billed per seat to the person who creates the team (the owner). A seat is used by each member and by each invitation that has not yet been accepted or declined.
  • Adding or removing seats changes the subscription immediately and is prorated on the current billing period; the charge or credit appears on the owner’s next invoice from Paddle.
  • Members inherit the owner’s Team plan. Discussions run on our keys by any member draw the owner’s credit.
  • Discussions a member shares with the team can be read and continued by every member. Owners and admins can hold shared provider keys that fill any seat a member has not keyed themselves, and can remove members and cancel invitations at any time.
  • An invitation is only a seat once the person invited accepts it; they may decline. If the Team subscription ends, members return to the free tier and shared keys stop working.
  • The owner is responsible for the team’s use of the Service and for having the right to share discussions and keys with its members.

8. Refunds

Paddle is the Merchant of Record and handles refunds under the Paddle Refund Policy, which applies to every purchase and is summarised on our Refund Policy page. This does not affect any statutory rights you have where you live.

9. Your content

You own what you put into the Service and what the assistants produce for you. You give us only the permission we need to run the Service: to store your discussions, send them to the AI providers you have chosen, and show them to you and to the team members you share them with. We do not use your content to train models and we do not sell it.

You are responsible for having the right to use anything you upload or connect, including files, repositories and API keys.

10. Software

  • The desktop app, the iPhone app, the command-line tool and the extensions are licensed to you, not sold, for use with the Service. You may not reverse engineer them except where the law allows.
  • The desktop app checks letthembuild.com for updates and installs them when you accept. Older versions may stop working with the Service.
  • Third-party tools the Service can drive (coding CLIs, browsers, simulators) stay under their own licences.

11. Suspension and termination

You can stop using the Service at any time and delete your account from Settings, which removes your discussions and connected credentials. We may suspend or close an account that breaks these terms, is used for abuse, or presents a security or legal risk, and will tell you why unless the law prevents it. Sections 3, 9 and 12 to 16 survive termination.

12. Disclaimer of warranties

THE SERVICE IS PROVIDED “AS IS” AND “AS AVAILABLE”. TO THE FULLEST EXTENT PERMITTED BY LAW, GPULOGY DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. WE DO NOT WARRANT THAT THE SERVICE OR ANY AI OUTPUT WILL BE ACCURATE, UNINTERRUPTED OR ERROR-FREE, OR THAT THE AI PROVIDERS IT DEPENDS ON WILL REMAIN AVAILABLE.

13. Limitation of liability

TO THE FULLEST EXTENT PERMITTED BY LAW, GPULOGY WILL NOT BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL OR PUNITIVE DAMAGES, OR FOR LOST PROFITS, DATA OR GOODWILL, ARISING FROM THE SERVICE OR THESE TERMS. GPULOGY’S TOTAL LIABILITY FOR ALL CLAIMS TOGETHER WILL NOT EXCEED THE GREATER OF THE AMOUNTS YOU PAID FOR THE SERVICE IN THE TWELVE MONTHS BEFORE THE CLAIM AND ONE HUNDRED US DOLLARS. Some jurisdictions do not allow these limitations; where that is the case they apply only as far as the law permits, and nothing here limits liability that cannot be limited by law.

14. Indemnity

If you use the Service in breach of these terms, or in a way that infringes someone else’s rights or the law, you will cover the reasonable costs and damages GPULogy incurs from claims that result.

15. Changes

We may change the Service and these terms. For a material change to the terms we will give at least 14 days’ notice on this page or by email; continuing to use the Service after that is acceptance. If you do not agree, stop using the Service and cancel any subscription before the change takes effect.

16. Governing law and disputes

These terms are governed by the laws of the State of Texas and the federal laws of the United States, without regard to conflict-of-law rules. Any dispute that cannot be settled between us will be brought in the state or federal courts located in Texas, and you consent to their jurisdiction. If you are a consumer, this does not take away protections or rights you have under the laws of the place where you live, and Paddle’s buyer terms continue to apply to your purchase.

17. Contact

GPULogy AI LLC — [email protected]. For billing and payment enquiries you may also contact Paddle directly at paddle.net.