# Smouldering Durtles (open-source education app)

> Smouldering Durtles is a free, open-source education app for Android. A client for WaniKani, with advanced features built in and offline reviews. It has 117 GitHub stars and is released under the Apache-2.0 license, and you can install it from F-Droid and Google Play.

Introducing Smouldering Durtles, your trusty companion app for the renowned WaniKani kanji learning platform, crafted by Tofugu! If you're on a quest to master Kanji with WaniKani, Smouldering Durtles is here to make your lessons and reviews engaging and enjoyable, with a plethora of features to enhance your learning experience. Smouldering Durtles offers advanced searching capabilities, allowing you to quickly locate the exact Kanji or vocabulary you're looking for. Bolster your learning with self-study quizzes, testing your knowledge and helping you retain what you've learned.

## Key facts

| Fact | Value |
|---|---|
| Repository | https://github.com/jerryhcooke/smouldering_durtles |
| Platforms | Android |
| Built with | Java |
| GitHub stars | 117 |
| License | Apache-2.0 (open source) |
| F-Droid | https://f-droid.org/packages/com.smouldering_durtles.wk/ (package com.smouldering_durtles.wk) |
| F-Droid anti-features | none flagged |
| Google Play | https://play.google.com/store/apps/details?id=com.smouldering_durtles.wk |
| App Store | not linked |
| Website | none listed |
| Official | no |
| Category | Education & language |
| Latest release | v1.2.8 (Jul 16, 2026) |
| Last commit | Jul 16, 2026 |

F-Droid builds its apps from source and flags anti-features: https://f-droid.org/en/docs/Anti-Features/

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