ToneMaster — Privacy Policy

Last updated: September 4, 2026

ToneMaster (the "App") is an HSK 1–9 Chinese vocabulary app published by FTL Lab. This page describes what data the App does — and does not — collect.

No data collection

ToneMaster does not collect, store, or transmit any personal data. The App contains no analytics SDK, no advertising SDK, and no tracking of any kind. Your learning progress, bookmarks and settings are stored locally on your device only.

Internet use

HSK 1 is fully embedded and works offline. Internet access is used only for:

Purchases and restoration — handled by the App Store (Apple) or Google Play through RevenueCat, which receive the transaction information needed to process your purchase under their own privacy policies: Apple · Google · RevenueCat.
Downloading HSK 2–9 audio packs — once you unlock the full vocabulary, the corresponding audio packs are downloaded from our host to your device so they can be played offline afterwards.
Links — opening our website, store pages or support links opens them in your browser.

Children

The App does not collect personal information from anyone, including children.

Contact

Questions about this policy: matthieu.lebas.ai@gmail.com.