Pengyou is an open-source app that helps you learn Chinese and is available for Android on the Google Play Store.
The data for the app is handled in a separate repository. Follow the instructions there and copy the generated database file into /app/src/main/assets.
The stroke order diagrams make use of the HanziWriter project.
The handwriting recognitions makes use of the Hanzi lookup project.
Evelyn Li did an awesome job designing the app icon and user interface. Check out her Instagram page to see more of her work.
No user data gets collected.
Contributions welcome!
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