Smouldering Durtles
The Ultimate WaniKani Companion
• Smouldering Durtles is an advanced third-party application meticulously engineered to elevate your experience with WaniKani, the popular Japanese kanji learning platform created by Tofugu.
• Designed for dedicated learners who want to streamline their progress, this app provides a robust suite of tools that make daily lessons and reviews more efficient and engaging.
Core Learning Features
• Advanced search: Effortlessly locate specific kanji or vocabulary items within your curriculum to review details or focus areas.
• Self-study quizzes: Reinforce your long-term retention by creating custom quizzes tailored to your specific learning needs.
• Offline functionality: Never let a lack of internet connectivity hinder your progress; complete your reviews on the go and sync your results once you are back online.
Customization and User Experience
• Visual personalization: Tailor the interface to your aesthetic preferences with an extensive selection of themes, ensuring your study environment remains comfortable and visually appealing.
• Optimized workflow: Benefit from a streamlined user interface that allows for faster input and navigation compared to standard browser-based study.
Important Considerations
• Account Requirements: To utilize the features of Smouldering Durtles, you must possess an active, valid WaniKani account.
• Independent Development: It is important to note that Smouldering Durtles is an independent project. It is not officially developed, supported, or endorsed by the team at Tofugu.
Master Kanji with Smouldering Durtles
• By integrating Smouldering Durtles into your daily routine, you gain a significant technological advantage in your journey toward Japanese literacy.
• Whether you are aiming to clear a backlog of reviews or seeking a more flexible way to study, this application provides the tools necessary to master complex kanji systems with greater consistency and focus.
FAQ
Q: Is this app officially affiliated with Tofugu?
A: No, Smouldering Durtles is an independent project. It is not developed, supported, or endorsed by the team at Tofugu, the creators of the WaniKani platform.
Q: Do I need a WaniKani subscription to use this app?
A: Yes, you definitely need an active and valid WaniKani account to use the features within Smouldering Durtles, as the app syncs directly with your existing learning data.
Q: How does the offline functionality work?
A: The offline mode allows you to continue your reviews even when you do not have an internet connection. Once you are back online, the application automatically syncs your progress and inputs back to your WaniKani account.
Version History
v1.2.5——13 Jul 2026
A client for WaniKani, with advanced features built in and offline reviews! Download the latest version of Smouldering Durtles to enjoy new features and updates immediately!
*1.2.5
This release resolves the issue of the system status bar overlapping the app toolbar.
This was due to the enforcement of edge-to-edge in SDK 35.
Tested on a Pixel 8a VM (Android 17, AP 37.1) and on a physical device (Android 10, API 29), no issues in any orientation.
*1.2.4
A few updates and API compatibility bits, as well as the following PRs:
• Lightning mode special button toggles
• Search intent provision
• Ribcage radical fix
*1.2.3
A few changes to build config to hopefully fix RB.
