Privacy Policy

Last updated: November 1, 2026

This policy explains what information TonicGrid collects when you use the website https://tonicgrid.com and the TonicGrid mobile app, and how it is used. TonicGrid is a music theory tool: you can use the fretboard, keyboard, staff, circle of fifths and chord shapes without an account.

Signing in with Google

Signing in is optional. If you sign in with your Google account, we receive from Google your name, email address, profile picture and a Google account identifier. We use them only to create and recognise your TonicGrid account, so that the same account works on the website and in the app and a subscription bought in the app also unlocks premium content on the website. We do not get your Google password and we do not access any other data in your Google account.

Subscriptions and purchases

Subscriptions in the app are sold through Google Play. Payment is handled entirely by Google; we never see your card or other payment details. To grant premium access we receive from Google Play the status of your subscription (active, expired, cancelled) and store it with your account.

Advertising

The free version of the app shows ads served by Google AdMob. AdMob may collect device information, such as the advertising ID, to show and measure ads, as described in Google’s privacy policy (https://policies.google.com/privacy). An active subscription removes ads.

Settings stored on your device

Your choices — language, theme, instrument, tuning and layout — are stored on your device: in cookies on the website and in the app’s local storage. They are not sent to us.

Sharing

We do not sell your personal information and do not share it with anyone except the services named above (Google Sign-In, Google Play, Google AdMob) and our hosting provider, which stores the website and its database.

Deleting your account

You can delete your account and all data linked to it (name, email, Google account link, premium status) at any time, and it is removed immediately: in the app — open the menu, tap your account, then “Delete account”; or on the website — sign in with Google at https://tonicgrid.com/account/ and choose “Delete account”. You can also write to shvets.jan@gmail.com from the email address of that account. Cancelling a subscription is done in Google Play.

Children

TonicGrid is not directed at children under 13, and we do not knowingly collect their personal information.

Changes and contact

If this policy changes, the new version will be published on this page with a new date. Questions: shvets.jan@gmail.com.