Sumina

Support

Last updated: 2026.08.01 日本語

Support page for the iOS app Sumina.

Contact

For bug reports, feature requests or subscription questions:

[email protected]

Sumina is built and run by one person, so replies may take a little time.

When reporting a problem, the following helps a lot:

  • Your User ID, from the Account screen in the app (tap to copy)
  • Your iOS version and device model
  • What you were doing when it happened
  • A screenshot

FAQ

How long does an audio overview take?

A few minutes from the start of collection. You will get a notification when it is ready, so you can close the app in the meantime.

How do I cancel my subscription?

iOS Settings → (your name) → Subscriptions → Sumina. You keep access until the end of the paid period.

I am changing devices or reinstalling the app

Protect your account with Sign in with Apple from the Account screen first. Without it, deleting the app means your data cannot be recovered (the subscription itself comes back via Restore Purchases).

How do I delete my account and data?

Account screen → アカウントを削除 (Delete account). Everything is removed, and this cannot be undone.

The audio does not match the source article

Summaries and audio are generated by AI and can contain errors. Please open the source from “元記事を開く” on the article screen to check.

© 2026 Shuhei Yoshida