Privacy Policy
Last updated: 18 August 2026
1. Summary
Channel Timeline Viewer keeps your data on your device. There is no account, no analytics in the app, and no server operated by us that receives your information.
2. What is stored on your device
The following are saved locally (iOS UserDefaults / app cache) and never sent to us:
• Identifiers of videos you marked as watched or skipped, with timestamps
• Per-channel progress (total count, watched count, last opened video)
• Recently used channels (channel ID, name, thumbnail URL, last used time)
• Notes you write for a video
• Playback position (in seconds) for each video
• A cached copy of the video list of channels you opened
Deleting the app removes all of it.
3. YouTube and Google
The app uses two official YouTube (Google LLC) services:
• YouTube Data API v3 — to fetch the public list of uploads for the channel you enter.
• YouTube IFrame Player — the official embedded player used for playback. During playback YouTube and Google may collect and process information under their own policies.
The app does not download videos, block ads, scrape, play in the background, or use a custom player.
Google Privacy Policy: https://policies.google.com/privacy
YouTube Terms of Service: https://www.youtube.com/t/terms
4. The relay page used for playback
To display the official embedded player correctly, the player screen loads a small static page we publish on GitHub Pages (https://kataming.github.io/ChannelTimelineViewer/player.html) and embeds the official player inside it. That page only displays the player; it contains no analytics or tracking. As with any web request, GitHub may log standard connection information (such as IP address).
5. Sharing from other apps
The share extension receives only the URL (or text containing a URL) you share. It is parsed on the device and used to look up the channel through the official API. It is not sent anywhere else. Non-YouTube URLs are ignored.
6. Notifications
iOS does not allow a share sheet to launch an app directly. If — and only if — you allow notifications, the app posts one local notification right after you share, so you can tap it to open the channel. It contains only the shared YouTube URL and is handled on the device. No promotional, re-engagement, or server push notifications are ever sent.
7. Tracking
The app does not use the advertising identifier (IDFA) and does not use App Tracking Transparency, because it does not track you.
8. Children
The app does not knowingly collect personal information from children.
9. This website
This site is a set of static pages. It sets no cookies and runs no analytics.
10. Changes
This policy may be updated. Significant changes will be announced with an app update.
11. Contact
Email:
YouTube is a trademark of Google LLC. This app is an unofficial app that uses the official API and player; it is not endorsed by or affiliated with Google or YouTube.