Public Android beta
This is an older test build, separate from the upcoming public release. It includes curriculum 1.4.3, checksum a60414eb96bb4a7e94a5939bc7a6c3e424f8d909eadaa6d3384f5a1611eb44f2. This build predates the current approved curriculum. You may encounter Japanese, translations, or exercises that were corrected later. Please treat it as a test build.
Please share this page with anyone willing to try an early Japanese-learning app and send candid usability feedback. A short session is useful; no account is required.
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 10). The download link expires October 7, 2026 UTC. Android 7 or newer is required.
APK SHA-256: 91e357875bb737b9bf8f833054ec8736870d237c48fc47d28b14327b7376503d.
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.
Use one device or browser for your beta sessions. Session history stays there; answer mastery and issue reports sync for that guest profile when the app is online. Clearing browser data starts a new guest profile.
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 it does not represent the current release curriculum. Please report specific problems you encounter; a clean test session does not certify the full curriculum.