Useful Furigana Lens

Useful Furigana Lens

katapu.net

Available on Google Play
1,000+ installsFreeEducation

Updated Mar 20, 2026 · v1.1.0

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Hold up your camera! A convenient real-time Japanese Kanji furigana display app!

Useful Furigana Lens is a handy OCR (Optical Character Recognition) app that detects Kanji from Japanese text captured by your smartphone’s camera and automatically overlays furigana. Whether you’re studying languages, reading, or researching and come across a Kanji whose reading you don’t know, simply point your camera and the furigana will be displayed instantly. This powerful support tool is useful in everyday life, study, and business situations. And it’s free—feel free to download it! ◇◇◇ Download the Full Sudachi Dictionary ◇◇◇ The app uses the Sudachi library to assign furigana to Kanji. The built-in dictionary is small, so we recommend downloading the full version. The full version can be downloaded from the settings. ◇◇◇ App Highlights ◇◇◇ - Instant Furigana Display Point your camera and the app automatically analyzes the Kanji and overlays furigana in real time. Even if the text contains difficult Kanji, you’ll be able to read it with ease. - Supports a Wide Range of Text Not only printed materials and books, but also signs, packaging, and screen text are supported. You can easily look up the reading from study texts or even a sign while you’re out and about. - Simple Operation No unnecessary settings are needed. Simply launch the app and point your camera. The on-screen display is clear, so even first-time users will find it easy to use. - Study Support Function If you save the Kanji and furigana, you can review them later for study purposes. You can list the characters you want to memorize, check them later, and review them. - Romaji Mode Available By default, furigana is displayed in Katakana, but you can also opt to display it in Romaji. Just turn on Romaji mode in the settings. - Offline Operation You can use the app offline without an internet connection. Downloading the full Sudachi dictionary does require internet access, but once it has been downloaded, the app works offline. ◇◇◇ How to Use ◇◇◇ - Launch the App Tap the Useful Furigana Lens icon on your home screen to launch the app. - Point Your Camera After launching, the camera preview appears. Aim your smartphone’s camera so that the text or sign you want to read fits within the square in the upper-left corner. - Automatic Text Detection The app automatically detects Kanji and processes the furigana. A preview in the upper-right corner shows the recognized result, and a list with furigana over the Kanji appears in the center of the screen. - Review the Results Up to 15 results are displayed at the same time. Once the list is full, older results are overwritten in order. If you want to save text for later checking or study, tap the save button on the left. You can review the history later from the menu in the upper-right corner. - Magnify with the Magnifier Touch the results view to enlarge the text. - Use the History Saved texts with furigana can be opened anytime from the history screen. You can delete or copy each entry individually, and you can also delete all history from the menu in the upper-right corner. Useful Furigana Lens helps you read Japanese more easily by supporting the reading of Kanji. It improves study efficiency and comprehension, and it is a reliable tool for students, Japanese learners, and anyone who wants to spend less time struggling with unfamiliar Kanji in daily life, work, or private situations. Give it a try!

Released
March 2, 2025

1 year on Google Play

Version
1.1.0
Updated
Mar 20, 2026
Content Rating
Everyone
Installs
1,000+
Developer
katapu.net
Website
https://www.katapu.net/
Email
katapu.game@gmail.com
In-app purchases
No

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