Breathing Diary

Privacy Policy

Last updated: July 27, 2026

Lychee Intelligence Co., Ltd. ("we", "us", or "our") developed Breathing Diary (App ID: tw.lychee.BreathingDiary, "the App"). This Privacy Policy explains how we handle your data when you use the App.

Data Collection

We do not collect any personal data.

The App has no accounts, requires no sign-up or sign-in, and never transmits any data to us or to any third party. Our privacy declaration on App Store Connect is "Data Not Collected".

Data Stays on Your Device

Everything the App creates is stored locally on your device through Flutter's shared_preferences, including:

  • Practice records and progress — practice dates, session counts, streaks
  • App settings — your capybara's name, sound and haptics toggles, reduced motion, day/night mode, breathing pace preferences
  • Album records — only the identifier and date of a scene you visited; the picture is redrawn from illustrations bundled in the App. The App does not access your camera or photo library.
  • Unlock status — which scenes you have purchased

This data never leaves your device. We operate no servers and have no way to read it. If you use iCloud Backup or a similar device backup, this data may be included in your own backup, which is governed by Apple's terms and privacy policy.

Network Access

The App works entirely offline. It makes no outbound network requests: nothing is uploaded, nothing is downloaded, and no usage is reported. The only external interaction happens when you choose to make an in-app purchase, which is handled by Apple's App Store (see below).

In-App Purchases

The App offers four one-time, non-consumable products (scene unlocks). Payment is handled entirely by the Apple App Store:

  • We never receive and cannot access your payment information (card number, billing address, Apple ID, etc.)
  • We only record locally on your device which scenes have been unlocked
  • You can use "Restore Purchases" in the App to restore prior purchases from the App Store

Apple's handling of data during the transaction is governed by Apple's privacy policy.

Third-Party Services

The App uses no third-party analytics, crash reporting, advertising frameworks, or tracking SDKs, and does not track you across apps or websites.

Feedback

The "Feedback" option in Settings opens your device's mail app with our support address, a subject line, and the App version pre-filled. Whether to send it, and what to write, is entirely up to you. We receive nothing until you press send.

Deleting Your Data

All App data lives on your device. Deleting the App removes your practice records, settings, and album entirely. Because we hold none of your data, there is no deletion request to make to us. Purchase records are held by Apple and can be restored with "Restore Purchases" after reinstalling.

Children's Privacy

The App collects no personal data, and therefore collects no personal information from children. Its content is suitable for general audiences.

Policy Changes

If we make changes to this Privacy Policy, we will update the content on this page and revise the "Last updated" date. We encourage you to review this page periodically for the latest privacy information.

Contact Us

If you have any questions about this Privacy Policy, please contact us through: