Public Android beta
This preview is open to public testers. It includes curriculum 1.4.2, checksum 87dd30b9ff9dd903e77ffeab866fa5001ed59e573057b47a47db4b21b3ad2d4e. The curriculum has not completed qualified editorial review; you may encounter Japanese, translations, or exercises that need correction. Please treat it as a test build.
Try the browser beta with no install, or use the Android APK on an Android 7 or newer device.
Download the Android APK (app version 1.1.0, build 9). The download link expires October 7, 2026. Android 7 or newer is required.
What to try
Install the APK or open the browser beta, continue as a guest, complete onboarding, and finish a short lesson. Notice whether the prompt, answer choices, Japanese reading, and explanation are clear. No account is required.
For this beta, lesson progress stays with the device or browser you use; cross-device progress sync is not verified. Exercise reports sync separately when the app is online.
How to send feedback
In any exercise, tap Report an issue with this exercise. Choose a category, add optional details, and send. Reports are saved on your device and sent when it is online. Choose “Something else” to describe a general usability problem, and include the screen and steps that led to it. Please do not include personal information.
Reports include the exercise ID and curriculum version so the team can investigate the exact item.
Known limits
This is an early usability and content beta, not a complete Japanese course or full JLPT preparation path. It has no listening-comprehension lessons, and its curriculum has not completed qualified editorial review. Please report specific problems you encounter; a clean test session does not certify the full curriculum.