Support

We read every message.

Email us at cs.topika@gmail.com — bug reports, a definition that looks wrong, or anything else. Telling us your iOS version and the word or screen involved helps us fix it faster.

Frequently asked

What are the daily limits on the free version?

Free accounts get 20 new words per day, with a daily goal you can set up to 20 words, plus 5 dictionary lookups and one radical set. If you run out of cards partway through a session — which happens when you mark a lot of words as unknown, since those come back — you can watch a short rewarded ad to keep going. Premium removes every limit. Limits reset each day.

I bought premium but the app still shows limits.

Open Settings › Restore Purchases. This asks the App Store what your Apple Account owns and re-applies it — use it after reinstalling or moving to a new device. Make sure you are signed in with the same Apple Account you bought with. The premium unlock is a one-time purchase, not a subscription, so there is nothing to renew.

Will my progress sync to my other devices?

Not yet. HSK Loop stores everything on the device itself, with no account and no server, so progress on your iPhone and your iPad are separate. Deleting the app erases its data — there is no way for us to recover it.

The pronunciation audio isn't playing.

Recorded audio plays even when the silent switch is on, so check your volume and whether another app is holding audio (a call or a video). Words, pinyin, and example sentences all ship with the app and work offline — no connection is needed.

A definition or example sentence looks wrong.

Please tell us. Korean definitions, example sentences, and the readings of multi-reading characters are curated by hand, so mistakes are ours and we can fix them in an update. Send the word and what you expected.

Which languages does the app support?

The interface is available in Korean, English, and Japanese, and can be changed in Settings › Language. Definitions are most complete in Korean; English definitions come from the source dataset below.

Where does the vocabulary come from?

Headwords, pinyin, and English definitions come from an open-source HSK vocabulary dataset (MIT licensed) built on CC-CEDICT. Everything on top of that — Korean definitions, example sentences, radical and character notes — was written for this app.

How do I delete my data?

Delete the app. Everything it stored goes with it. See the Privacy Policy for the full picture.