Help

Support

Something not working, a lesson that confused you, or an idea? Write to hello@kosumi.app. Tell us your iPhone model and iOS version, and we'll get back to you within two working days.

Subscriptions

Kosumi Premium is billed by Apple. To cancel or change plan, open Settings on your iPhone, tap your name, then Subscriptions, then Kosumi. To restore a purchase on a new device, open Kosumi Premium in the app and tap Restore purchases. Refunds are requested from Apple at reportaproblem.apple.com.

Account and data

You can delete your account from the app's settings, or email privacy@kosumi.app. See the Privacy Policy for what we store.

Online play

To report a player for cheating or bad behaviour, use Report on their profile or at the end of the game. If a game was affected by a connection problem, email us with the date and your opponent's nickname.

More

Common questions are answered in the FAQ. The rules for using Kosumi are in the Terms of Use.