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Terms of Service

Last updated · May 21, 2026

These terms govern your use of the Tchaku macOS app and this website. Tchaku is local-first, so much of what the app does never involves us at all — but a few things, like live sessions and future paid plans, are worth setting down clearly.

Template notice. This document is a starting-point template tailored to Tchaku's architecture. Have it reviewed by legal counsel before relying on it in production.

Acceptance of these terms

By downloading, installing or using Tchaku (the “Software”) or this website, you agree to these Terms of Service. If you are using Tchaku on behalf of an organization, you accept these terms for that organization. If you do not agree, please do not use Tchaku.

The Tchaku software

Tchaku is a desktop presentation studio for macOS. We grant you a personal, non-exclusive, non-transferable, revocable licence to install and use the Software on devices you own or control, subject to these terms.

The editor and its core features are free to use. Paid plans unlock larger live-audience sessions and team features, as described in the billing section below. We may update, improve or discontinue features of the Software over time.

Your decks and your files

Tchaku is local-first. The decks you create are .tch files stored on your own device (decks from before the rename keep their .animpro extension and open the same way). You own your decks and everything in them — we claim no ownership of, and no licence to, your content.

We do not access, transmit or store your deck files; they never leave your machine unless you choose to move them. You are responsible for backing up your own files.

Live audience sessions

When you run a live-audience slide, Tchaku opens a temporary session on our real-time infrastructure so audience members can join from their phones. By running a session you agree that:

  • you are responsible for the conduct of your session and for the content your audience submits;
  • you will not use a session to collect sensitive personal information;
  • session data is transient and may be deleted when the session ends.

See our Privacy Policy for what is processed during a live session.

AI generation

Tchaku’s AI features call third-party model providers (such as Anthropic) using an API key that you supply and that is stored locally on your device. Your use of those providers is governed by their own terms, and you are responsible for the API costs you incur. AI-generated content may be inaccurate or unsuitable — you are responsible for reviewing it before use, and we make no warranty as to AI output.

Paid plans and billing

Paid plans are billed through Stripe. The pricing shown on this website is a placeholder pending launch and is not an offer to sell.

When paid plans become available:

  • subscriptions renew automatically until cancelled;
  • you may cancel at any time and keep access through the end of the paid period;
  • refunds are handled per the policy stated at checkout.

We never receive or store your full payment-card details — Stripe processes all payments.

Acceptable use

You agree not to:

  • use Tchaku for unlawful purposes;
  • reverse-engineer, decompile or attempt to extract the source code, except where permitted by law;
  • resell or redistribute the Software;
  • use live sessions to harass, deceive or harm others, or to collect data without proper consent;
  • interfere with, overload or disrupt our infrastructure.

Intellectual property

Tchaku, its name, logo and software are owned by us and protected by intellectual-property laws. These terms grant you a licence to use the Software — not any ownership of it. The decks, templates and content you create with Tchaku remain entirely yours.

Disclaimers

The Software and this website are provided “as is” and “as available”, without warranties of any kind, whether express or implied, including merchantability, fitness for a particular purpose and non-infringement. We do not warrant that the Software will be uninterrupted, error-free or secure.

Limitation of liability

To the maximum extent permitted by law, we will not be liable for any indirect, incidental, special, consequential or punitive damages, or for any loss of data, profits or goodwill, arising from your use of Tchaku. Our total liability for any claim relating to Tchaku will not exceed the amount you paid us in the twelve months before the claim.

Changes to these terms

We may update these terms from time to time. When we make material changes we will update the “last updated” date above and, where appropriate, notify you in-app or on this website. Continuing to use Tchaku after changes take effect constitutes acceptance of the updated terms.

Contact

Questions about these terms? Email us at [email protected].