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Delete your data

Effective date: September 30, 2026

My apps do not have accounts, and the details you enter stay on your device. This page explains how to delete that data, and how to ask me to delete anything I hold about you.

Data in the apps

Charts and details you enter are stored only on your device. I never receive them, so you are in full control. To delete them:

  • Delete the entries inside the app, or
  • On Android, go to Settings, then Apps, choose the app, then Storage, then Clear storage, or
  • Uninstall the app. This removes its data from your device.

Data I may hold

The only personal data I may have about you is:

  • Emails you sent me, including your email address
  • Basic order details shared by the store if you bought something, such as your name, email address and what you bought

How to ask me to delete it

Email [email protected] with the subject "Data deletion request". Please include:

  • The email address the data is linked to
  • The app name, if your request is about a specific app
  • Your order number, if you bought something

I will confirm the request came from you, delete the data, and reply to let you know. I aim to do this within 30 days.

What may be kept

I may need to keep basic purchase records, such as the order number, date and amount, for as long as tax and accounting laws require. I will tell you if that applies. Stores such as Google Play and Lemon Squeezy keep their own records under their own policies. You can ask them directly to delete data they hold.