Kaku Japanese Dictionary (OCR)

4.6
540 reviews
10K+
Downloads
Content rating
Everyone
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About this app

🌸 The Quickest Way to Lookup Kanji on Your Device
Kaku is a fast, powerful Japanese dictionary that stays on top of all your apps. It uses optical character recognition (OCR) technology to recognize kanji on the device screen for you (rather than the slowww tedious process of looking up individual characters manually), making it perfect for Japanese learners who want to study by reading raw manga, play untranslated mobile games, and so on without the hassle of switching apps on Android.

🌸 Inspired by the Best Japanese Reading Tools
If you ever used KanjiTomo, this is the Android equivalent. Kaku is also the closest you can get to browser extensions like Rikaikun / Rikaichan / Rikaisama / Yomichan on Android.

🌸 Open up Endless Study Opportunities
Being able to quickly lookup kanji inside any app makes it easier to practice Japanese than ever. Use Kaku to:
 • Transition to reading your favorite manga in Japanese instead of English
 • Play numerous untranslated Japanese mobile games not available in the English
 • Easily lookup kanji in apps that don't allow copying of text, i.e., Twitter
 • Read Japanese in the original app instead of "sharing" the text to another reader app
 • Use Kaku with Chrome as Android's version of the Rikai-tachis
 • Lookup kanji in random images you may encounter

🌸 Keeping it Classy and Free
Kaku works entirely offline and does not collect nor send user data. Finally, Kaku is open-source, and you can browse the code here: https://github.com/0xbad1d3a5/Kaku

https://kaku.fuwafuwa.ca
Updated on
May 9, 2022

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
No data shared with third parties
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No data collected
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Ratings and reviews

4.7
514 reviews
YamiZee
June 24, 2022
I think it would be nice if there was an auto mode where text was translated automatically, or anytime the box is no longer being touched (so a single tap would translate). Double tapping moves the box sometimes and feels clunky. The ocr text that shows up could have a better ui. It's big and doesn't read well. It's also hard to copy from, but I like that tapping shows the dictionary result.
21 people found this review helpful
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A Google user
January 4, 2019
I love this app - it's made me a lot more efficient in my Japanese learning. I like reading manga but it's a lot of work to look up words while read manga on my phone. This app has made that way easier. And being able to highlight text and have it translated right away is another great feature. Since I started using this app I've converted my random reddit reading on the phone into productive Japanese learning. I highly recommend this to anyone who wants to learn Japanese!
7 people found this review helpful
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0xBAD1D3A5
February 3, 2019
Thank you! Good luck with your Japanese studies!
A Google user
January 10, 2020
Great app. It did take me a while to figure out how to turn pages. Also it seems like the latest Android release might have broken the way you could tap the notification pane to put the window in sleep mode. All in all this is an indispensable app for intermediate Japanese learners who want to use their mobile device to practice reading.
6 people found this review helpful
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What's new

Downgrade Tesseract version as it was causing issues with vertical text recognition.