Kaia is an app for learning to actually speak English. Short lessons teach you phrases, and Free Talk lets you hold a real conversation with an AI partner to practise them.
Questions, bug reports and refund queries all go to the same place:
Write in Japanese or English — either is fine. Replies can take a few days. Kaia is built and run by one person, so there is no phone support.
For a bug report, these details make it much easier to find the cause: your iPhone model and iOS version, the Kaia version, and what you were doing on which screen when it happened.
Your subscription belongs to your Apple ID, so everything happens in the iPhone Settings app.
Open Settings › Apple ID (your name at the top) › Subscriptions › Kaia, then change your plan or cancel.
We cannot cancel it for you. Apple handles the billing, and a developer has no way to cancel a subscription or issue a refund on your behalf. For a refund, ask Apple at reportaproblem.apple.com. We are happy to walk you through the steps if anything is unclear.
Cancelling leaves your access running until the end of the period you have already paid for. That end date is shown on the same Subscriptions screen.
You can delete your account inside the app: Profile → Settings → Delete account.
It removes your progress, your Free Talk conversations, the mistakes saved for review, and your email address if we hold one. It cannot be undone.
Deleting your account is not the same as cancelling. They are two separate things. If you have not cancelled, deleting the account does not stop the billing — cancel in Settings using the steps above.
What we collect, what is sent to AI services and how long anything is kept is all in the privacy policy.