Support
Last updated
For account, billing, safety, privacy, or technical help, email [email protected]. Include the app version and a short description, but do not send passwords or full payment details.
Contact
[email protected] is the support address for Ask Sun Tzu. If the issue concerns an account, write from the email used to sign in when possible. We may ask for information needed to verify ownership, but we will never ask for your password or email verification code.
Sign-in and account identity
Apple, Google, and email sign-in can reach the same account when they return the same verified email address. If Apple Hide My Email or another relay address was used, tell us both addresses when asking for help; they may represent separate accounts.
Manage, cancel, or restore a subscription
Open the subscription settings for the store account used to purchase. Cancelling stops the next renewal and normally keeps access through the paid period. Use Restore Purchases with the same store account when an active purchase is not recognized. Restoring confirms access for the Sun Tzu account originally linked to that purchase; it does not move the subscription to another Sun Tzu account.
An active subscription is available on iPhone and Android after you sign in to the same Sun Tzu account.
Deleting the app or deleting your Ask Sun Tzu account does not cancel billing. Refund requests are decided by the store under its policy and applicable law.
Report an AI answer
Use the report action on a strategy card for harmful, inappropriate, or inaccurate output. The report includes the referenced response so an authorized reviewer can assess it. For urgent safety or privacy concerns, also email support.
Delete your account or request data
Delete the account from the bottom of the Profile page. The primary database record and linked user data are removed; backup copies rotate out within up to 14 days. For access, correction, or another privacy request, email [email protected].
Technical reports
Please include your device model, operating-system version, app version, what you expected, what happened, and whether it happens again. Screenshots are useful after you remove private strategy text and unrelated personal information.
Operator
ChainBow Co., Ltd. (株式会社ChainBow), 2-6-6-404 Taito, Taito-ku, Tokyo, Japan. Representative: Li Long.