Last updated: July 18, 2026
WonderMax ("the app") is a children's literacy education app developed by WonderMax ("we", "us"). This policy explains what information the app handles and how.
WonderMax is designed for children ages 4-7, used under a parent or guardian's supervision.
We do not collect, transmit, or share any personal information with our own servers or any third party. WonderMax has no user accounts, no sign-in, no advertising, no analytics, and no crash-reporting services of any kind built into the app.
WonderMax offers an optional one-time purchase and an optional monthly subscription to unlock additional lesson content. All payment processing is handled entirely by Google Play Billing — WonderMax never collects, sees, stores, or transmits your payment card details, billing address, or any other financial information. The app stores only a simple local flag on your device recording whether content has been unlocked, so it can grant access without needing an internet connection every time you open it.
The following information is created during normal use of the app and is stored locally on your device only, inside the app's private storage:
None of the above ever leaves your device, is transmitted to us, or is shared with any third party.
WonderMax uses your device's microphone so your child can speak words aloud during reading and pronunciation activities. Audio is processed entirely on your device using an offline, on-device speech recognition engine (Vosk). No audio or transcript of what your child says is ever transmitted off your device, stored beyond the current activity, or shared with anyone, including us.
For handwriting/tracing activities, the app uses Google's ML Kit Digital Ink Recognition. This feature downloads a small on-device recognition model from Google the first time it's used, which requires an internet connection for that one-time download. After the model is downloaded, handwriting recognition itself runs entirely on your device. No drawings, handwriting samples, or personal data are sent to Google or anyone else as part of this feature. See Google's ML Kit privacy information for details on the model-download step: https://developers.google.com/ml-kit/terms
WonderMax uses two on-device machine learning components to power its activities: Google's ML Kit Digital Ink Recognition (handwriting/tracing scoring, described above) and Vosk (offline speech recognition, described above under "Microphone use"). Both run entirely on your device. Neither your child's voice, handwriting, nor any other personal information is sent to Google, the Vosk project, or any other third party as part of using these features. Separately, the app's narrator ("Max") voice lines are pre-recorded audio files created by the developer using a third-party AI voice-generation service during content production, before the app was published — this process does not involve or transmit any user or child data, since it happens entirely offline from app usage.