I built a simple HSK 3.0 flashcard app for levels 1-9

Hi everyone,

I’ve been learning Mandarin and wanted a cleaner way to study HSK 3.0 vocabulary, so I built an app called HSK Deck.

It includes HSK 3.0 vocabulary from level 1 to 9, with flashcards, pronunciation, quizzes, writing practice, and spaced repetition review. The goal is to keep it simple: open the app, pick a level, review words, and keep going.

A few things I kept simple:

• no ads
• no subscription
• no account required
• one-time unlock for all advanced levels

HSK 1-3 are free, and HSK 4-9 are a one-time unlock. I’m planning to keep improving it over time with better examples, smoother review flow, and more learning tools.

I’d really appreciate feedback from other Mandarin learners:

• Is the study flow clear?
• Are the word lists useful?
• What would make it better for daily HSK study?

Android: https://play.google.com/store/apps/details?id=com.champ.hsk_deck

iOS: Coming later

Thanks, and hope it helps someone else studying Mandarin too.