Notifications

On Android, Tsumiru can check for new chapters and post alerts while the app is closed. Notification controls are under Settings → Notifications.

New chapters

New chapter notifications tell you when followed series get new chapters. Android checks your library on a schedule and groups results by series, so ten chapters across three series produce three notifications.

Each one carries quick actions: Mark as read, View chapters, and Download, so you can clear it, jump straight to the chapters, or queue them for offline reading right from the notification.

Turn this off with New chapter notifications if you'd rather check for updates yourself.

Downloads, updates, and errors

The other alerts each have their own switch:

• Download notifications: a Downloads complete notification when an offline batch finishes.
• Error notifications: Failed downloads and library updates, so a source going down or a chapter that won't download doesn't go unnoticed.
• Backup notifications: when a backup or restore finishes or fails.
• App update notifications: when a newer Tsumiru release is available.
• Extension update notifications: when your installed extensions have updates waiting.

Tuning the checks

On Android, these settings control background checks:

• Check interval: how often Tsumiru looks for new chapters. The same control appears under Settings → Downloads → On device, nested under Download new chapters in the background. It's one shared schedule, so changing it in either place changes both.
• Only on Wi-Fi: skip the check on mobile data.
• Only while charging: skip it unless the device is plugged in.
• Check now: run a check immediately instead of waiting for the interval.
• Hide notification content: show only a count, not titles or covers, for a bit of privacy on your lock screen.

Timing

Checks run periodically, not instantly, and some devices restrict background updates to save battery. If notifications seem late or missing, exempt Tsumiru from battery optimization in your system settings.