Privacy Policy
Last updated May 28, 2026
Guth is an iOS app published by Antonio Manuel Moniz (“we,” “us,” “our”), bundle id com.getguth.guth. We can be reached at hello@getguth.com. This policy explains what data we collect, how we use it, and your rights.
This policy also covers this website, getguth.com. If you email us for early access, we use your address only to contact you about early access — we don’t sell it, share it, or use it for anything else. The site sets no advertising or tracking cookies and uses no analytics.
The short version
- We collect your chat messages with Guth and the specialists so the AI can respond.
- We collect a random device identifier (a UUID) used only for rate limiting and prompt caching. It is not linked to your name, email, or any other identifier.
- We do not collect or transmit Screen Time data, app usage numbers, app identities, location, contacts, health data, or photos — only what you type into chat.
- We do not track you across apps or websites. We don’t run ads. We don’t sell data.
- Your conversation data is processed by OpenAI via our backend (Supabase) for AI response generation only.
Chat content
When you message Guth or any specialist, the message text is sent to our backend and forwarded to OpenAI’s API to generate the response. The reply is sent back to your device and saved in app memory.
- Purpose: AI functionality (generate replies).
- Linked to identity: No.
- Used for tracking: No.
- Retention: Conversation logs are retained for up to 30 days in our backend for debugging and abuse prevention, then deleted.
Device identifier
A random UUID is generated locally on first launch and stored on your device. It is sent with each AI request for rate limiting and as a prompt-cache key. It is not linked to your identity and is not used for tracking.
What we explicitly do not collect
- Screen Time data — usage durations, schedules, and app identities. All Screen Time computation happens on-device via Apple’s Family Controls and DeviceActivity frameworks. We never receive or transmit it.
- Location — requested only for the optional Walk and Food Decider features. Results are shown to you on-device; we do not log your coordinates.
- Contacts, photos, microphone, camera, health, push tokens — not requested.
- Account info — Guth has no login or account.
Third parties we use
- OpenAI — processes your chat messages to generate AI responses. See openai.com/policies.
- Supabase — hosts the edge function that proxies between your device and OpenAI.
- Apple — provides Family Controls, the App Store, and notifications. Apple’s privacy policy applies separately.
We do not use any analytics SDK.
Your rights
- Delete your data: delete the Guth app to remove all local data. To request deletion of conversation logs on our backend, email hello@getguth.com with the subject “Delete my data.” We will fulfill within 30 days.
- Access: email the same address to request a copy of any conversation data linked to your device identifier (you’ll need to provide the UUID from the app’s Settings → About).
- California & EU residents may have additional rights under the CCPA and GDPR. Contact us at the address above to exercise them.
Children
Guth is not directed at children under 13, and we do not knowingly collect data from them. The app is rated 17+.
Updates
We may update this policy. Material changes will be notified in-app before they take effect.