Need help? You're in the right place.
For all questions, bug reports, or feedback:
Email: matthieu.lebas.pro@gmail.com
We typically reply within 48 hours.
Yes! 100%. All audio, all flashcards, all gameplay run without an internet connection. The only time the app reaches the internet is when you tap the upgrade button to process an in-app purchase.
No. Apple and Google are two separate payment systems. A purchase on one platform cannot transfer to the other.
Open the app, go to the Paywall (tap any locked HSK level or feature), and tap "Restore Purchases". Make sure you are signed in with the same Apple ID or Google account.
Haptics are an optional learning aid. Each Mandarin tone has a unique vibration pattern that helps you build muscle memory for the tone shape. You can turn this off in Settings.
Absolutely. We don't have a server. No tracking, no analytics, no ads. Your progress is stored only on your device.
Refunds are handled directly by Apple or Google.
HSK 1 is free. The Pro upgrade unlocks HSK 2 through HSK 9 (using the new HSK 3.0 standard), plus Tone Pairs, Minimal Pairs, and Adaptive Drills modes.