Data Deletion

Last updated: November 9, 2026

Fast Writing has no account registration. It manages data with an anonymous identifier for each device.

Delete from the App

1. Open Settings in the App.
2. Choose "Delete learning data" (学習データを削除) and follow the instructions.

Data that is deleted

• Chat history on the server
• Character conversation responses and audio
• Public ranking nicknames and scores
• Push notification tokens and delivery data
• Progress, settings, and saved phrases on the device

Data that is kept

• Billing receipts and the identifiers and entitlement status needed to keep purchases and refunds consistent (for auditing, refunds, and fraud prevention)
• Usage counts needed to avoid re-issuing the day's quota
• Past data in backups, during the backup retention period

See the Privacy Policy for retention details.

If you cannot use the App

Email thunderstruckworks@gmail.com. Because there are no accounts, please include information that identifies your data, such as the order number on your purchase receipt or your registered nickname. We will delete the data we can identify and let you know the result.

Canceling a subscription

Deleting data does not cancel your subscription. Cancel in your App Store or Google Play subscription settings.