Support
Frequently asked questions
How do I connect ChatGPT or Claude?
See how to connect Hachimo to ChatGPT or Claude. The AI connection needs an active Hachimo Pro. You start and manage your subscription in the Hachimo iOS app.
Lesson results do not appear in the app
Check that the account connected on the AI side is the same one you are signed in with in the app.
I want to disconnect my AI
Disconnect Hachimo in ChatGPT’s or Claude’s settings. Disconnecting does not delete saved data automatically.
I want to delete my account and data
You can delete your Hachimo data (learning history, review cards, lessons and settings) in the app’s settings. Accounts you use in other ProtoductAI apps are not deleted. To delete the authentication account itself, follow the in-app instructions or email us below from the address you registered with Hachimo; we will guide you after verifying it is you. Disconnecting your AI and cancelling your App Store subscription are separate steps.
I want to cancel
Open iPhone Settings, tap your name, then Subscriptions.
Contact
Email: support@protoductai.com
Please include what you were doing and when it happened. Never send passwords, authentication tokens, secret keys or credit card numbers.