Privacy policy

Effective September 30, 2026

Harmonicons does not collect, store or share any personal data. It has no accounts, no ads, no analytics and no tracking, and it works fully offline.

Who we are

Harmonicons is made by WellG Tecnologia (Wellguimaraes Tecnologia Ltda., Brazil) (“we”). This policy covers the Harmonicons app on Android and iOS.

Information we collect

None. The app does not send any information to us or to anyone else. It does not ask for your name, email, location, contacts, photos or any other personal information, and it does not use device identifiers or advertising IDs.

Information stored on your device

To remember your preferences between sessions, the app saves two small settings on your device only:

• the language you picked, if you changed it from Auto;
• which “How to play” lessons you have already seen.

These settings never leave your device. Deleting the app removes them.

Third parties

The app contains no third-party advertising, analytics or tracking software. App stores (Google Play and the Apple App Store) may collect information about downloads and crashes under their own privacy policies; we do not receive personal data from them.

Children

Harmonicons is suitable for all ages. Because the app collects no personal data, it collects none from children.

Changes to this policy

If this policy changes, we will update this page and its effective date.

Contact

Questions about privacy? Email well@wellg.dev.