Your data belongs to you. It stays on your device.
Summary: Tinh is built on a simple principle: your personal data stays on your device. All journal entries, health data, and analysis are processed and stored locally. We do not collect, transmit, or have access to your journal content.
This Privacy Policy describes how Tinh LLC ("Tinh," "we," "us," or "our") handles information in connection with the Tinh application ("the App") and the tinh.io website ("the Website"). Tinh LLC is a Delaware limited liability company.
Tinh stores all of the following data exclusively on your device using local SQLite storage via SwiftData. None of this data is transmitted to our servers or any third party:
Your data is encrypted on device via macOS/iOS Keychain integration.
All data processing in Tinh happens locally on your device. This includes:
No journal content, extracted data, or analysis results are ever sent to external servers for processing.
Tinh may request the following permissions, each of which is optional and requires your explicit consent:
If you grant permission, Tinh can read the following data from Apple Health for on-device correlation analysis:
This access is read-only. Tinh does not write data to HealthKit. HealthKit data is processed and stored locally and is never transmitted to our servers or any third party. This data is used solely to enrich the correlations and insights generated on your device.
If you grant permission, you can dictate journal entries using voice input. Audio is processed on-device via Apple Speech Recognition. No audio recordings are stored or transmitted.
If you grant permission, Tinh uses your approximate location solely to fetch weather data for on-device correlation analysis. Location data is sent to our weather proxy at api.tinh.io, which forwards the request to the Open-Meteo weather API and returns the result. This proxy exists to avoid exposing your IP address to third-party weather services.
We do not log, store, or retain location data on our servers. The weather proxy processes the request in real time and does not persist any user data. Weather results are cached by geographic area (not by user) to reduce redundant API calls.
Tinh subscriptions are managed entirely through Apple's App Store using StoreKit 2. We do not process, collect, or store any payment information, credit card numbers, or billing details. All subscription management, billing, and receipts are handled by Apple and are subject to Apple's terms and privacy policy.
To be explicit about what we do not do:
If you are using Tinh through Apple TestFlight, Apple may collect crash logs and usage data as part of their beta testing infrastructure. This is governed by Apple's privacy policy and TestFlight terms. Tinh itself does not collect any additional data during the beta period.
The tinh.io website is separate from the App and collects limited data:
We use Plausible Analytics, a privacy-focused analytics service. Plausible does not use cookies, does not collect personal data, and is fully compliant with GDPR, CCPA, and PECR. Analytics data is aggregated and cannot be used to identify individual visitors.
If you sign up for the Tinh beta program through our website, we collect:
This information is stored in our database (hosted on Supabase) and is used solely for managing the beta program: reviewing applications, sending beta invitations, and distributing updates. We do not share this information with third parties. You can request deletion of your beta signup data by emailing info@tinh.io.
Since App data is stored locally on your device, you have full control over it at all times:
For beta signup data stored on our servers, you can request deletion by contacting us at info@tinh.io. We will process deletion requests within 30 days.
Your App data is protected by your device's built-in security features:
For website data, we use industry-standard security measures including encrypted connections (HTTPS), secure database hosting, and access controls.
Tinh is not directed at children under the age of 13. We do not knowingly collect personal information from children under 13. If you believe a child under 13 has provided us with personal information through the website, please contact us at info@tinh.io and we will delete it promptly.
If you are a California resident, you have the right to:
Since the App stores data locally on your device, we do not have access to your App data. For website data (beta signups), you can exercise these rights by emailing info@tinh.io.
If you are located in the EEA or UK, you have similar rights regarding your personal data, including the right to access, rectify, erase, restrict processing, and data portability. The App's local-only architecture means your data is under your sole control. For any website data, contact us at info@tinh.io.
Tinh LLC is based in the United States. Website data (beta signups) is processed in the United States. By using the website and submitting information, you consent to the transfer and processing of your information in the United States. App data remains on your device regardless of your location.
We may update this Privacy Policy from time to time. Changes will be posted on this page with an updated effective date. If we make material changes, we will provide notice through the App or Website. Continued use of the App or Website after changes constitutes acceptance of the updated policy.
If you have questions about this Privacy Policy or Tinh's privacy practices:
Tinh LLC
Email: info@tinh.io
Website: tinh.io
Effective date: April 3, 2026