Support

Have a question, found a bug or want to suggest an improvement? Email us and we'll get back to you as soon as possible.

What is ChinaFlash Premium?

All of HSK 1 is free: its decks, daily reviews, the final test and the X-ray. ChinaFlash Premium unlocks HSK 2, radical study and the new levels we add. You can choose a monthly subscription, a yearly subscription with a 7-day free trial, or a lifetime purchase with a single payment.

I bought ChinaFlash Premium and it doesn't show up

Tap the gear on the home screen and go to Settings → ChinaFlash Premium → Restore purchases. Use the same Apple or Google Play account you bought it with. This is also how you get Premium back on a new phone.

How do I cancel my subscription?

Subscriptions are managed by your phone's store:

• iPhone: iPhone Settings → your name → Subscriptions → ChinaFlash → Cancel Subscription.
• Android: Google Play → your profile picture → Payments & subscriptions → Subscriptions → ChinaFlash → Cancel subscription.

You can also get there from the app: Settings → ChinaFlash Premium → Manage subscription. Cancel at least 24 hours before it renews. You keep Premium until the end of the period you've already paid for. Deleting the app does not cancel the subscription.

What happens when the free trial ends?

The yearly subscription includes 7 free days the first time you subscribe. If you don't cancel before they end (on iPhone, at least 24 hours before), your year of Premium starts and the store charges the yearly price. If you cancel during the trial, you won't be charged.

What about the lifetime purchase?

It's a single payment with no renewals: you get ChinaFlash Premium forever with that Apple or Google Play account, including the new levels we add.

How do I ask for a refund?

Payments are charged by the store, so refunds are decided by the store too: on iPhone, at reportaproblem.apple.com; on Android, from your Google Play order history.

What is the new HSK 3.0?

It's the new official syllabus of the HSK exam, published in 2025. Exams with the new syllabus start on December 13, 2026. ChinaFlash already follows it: HSK 1 has 294 words and HSK 2 adds 197 more.

How does the app decide which words to review?

ChinaFlash uses FSRS, a spaced-repetition algorithm: each word comes back right before you would forget it. Just flip the card and swipe right if you knew it or left if you didn't.

How do I change the theme?

Tap the palette icon on the home screen. With “Automatic”, the app uses Rice paper by day and Ink at night, following your phone's light or dark mode.

Where is my progress stored?

On your phone. You don't need an account or an internet connection to study.

Can I use the app in Spanish?

Yes. ChinaFlash follows your phone's language, and you can switch between English and Spanish in Settings → Language.

Will there be more levels?

Yes. We'll keep adding new HSK 3.0 levels in upcoming versions of the app, as part of ChinaFlash Premium.