瞬影 — Privacy Policy

Last updated: October 7, 2026
Effective: October 7, 2026

This policy covers "瞬影" (the "App").

In plain words: a long-video-to-timelapse tool. Conversion runs on your iPhone, and your videos
never leave it.

1. What we collect

Nothing.

• We do not upload your videos or the timelapse clips you produce.
• We do not upload your settings or usage history.
• No analytics, no tracking, no advertising SDK.
• The App has no server of its own — nothing reaches us.

2. How the App handles your data

How your videos are processed

• Only videos you explicitly select are read.
• Frame sampling and compositing run entirely on your iPhone (using Apple's video frameworks).
• Results are saved on your device; you may also choose to save them to your library.
• Neither the process nor its results are uploaded, and nothing is written to a log.

3. The only things that go online

• App Store in-app purchase (unlocks the full feature set). Payment, receipts and refunds are
  handled by Apple. We never see your payment details and never receive your name or account.
• Before purchase the App checks network reachability once (a request to apple.com carrying
  no content).
• Beyond this the App makes no network requests.

4. Permissions

• Photo library (read): used to pick the videos you want to process.
• Photo library (write): used to save the resulting clip, only when you ask.
• The App does not use the camera, microphone, or speech recognition; it does not record or
  capture audio.
• You can revoke these at any time in Settings → Privacy & Security.

5. Third parties

The App includes no third-party analytics, advertising, or data-collection SDK. Any network activity involving Apple is itemised under "the only things that go online" above.

6. Your rights

• Delete in-app data: uninstall the App.
• Revoke permissions: iOS Settings → Privacy & Security → Photos.
• Delete saved clips: remove them in the Photos app.

7. Contact

Questions? Please write to: gcdev@qq.com