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About: Renzo is a mobile app developer based in Japan. Their Japanese app is a category leader on Apple's
App Store.

Headquarters: Fukuoka, Fukuoka, Japan.



Japanese Customer Service 💢

The following contact options are available: Pricing Information, Support, General Help, and Press Information/New Coverage (to guage reputation). Discover which options are the fastest to get your customer service issues resolved.



NOTE: If the links below doesn't work for you, Please go directly to the Homepage of renzo Inc.



Verified email ✔✔

E-Mail: micha Click to view

Website: 🌍 Visit renshuu Website

Privacy Policy: https://www.renshuu.org/index.php?page=misc/copyright

Developer: renshuu.org


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3 Most reported problems 😔💔

4.8 out of 5

Great update, Text function needs work

2022-05-05

by Mleuker

It's really great to see that the developer hasn't abandoned the app and the latest update makes Japanese even more useful than it was before. This goes especially for the Study function which wasn't of much use before (to me at least) and couldn't really compete with some of the other options out ... Show more

Fantastic, but needs better spaced repetition

2022-05-12

by Will Squibbles

This app is incredibly useful and pretty much my go to for any situation. The dictionary is really huge and easy to search, the handwriting recognition works really well, and the precompiled vocabulary lists are incredibly helpful.
My biggest gripe about this app is the study system. It boasts ... Show more

Pretty useful, some features lacking

2022-05-19

by カンジ・ボイ

Overall, the application is quite helpful. I believe it’s biggest strengths are its ability to break down the radicals and components of Kanji characters as well as its large sample sentence library. Its biggest drawbacks, however, is it “draw” search function. Google translate allows you to draw a... Show more


Have a Problem with Japanese? Report Issue




Why should I report an Issue with Japanese?

  1. Pulling issues faced by users like you is a good way to draw attention of Japanese to your problem using the strength of crowds. We have over 1,000,000 users and companies will listen to us.
  2. We have developed a system that will try to get in touch with a company once an issue is reported and with lots of issues reported, companies will definitely listen.
  3. Importantly, customers can learn from other customers in case the issue is a common problem that has been solved before.
  4. If you are a Japanese customer and are running into a problem, Justuseapp might not be the fastest and most effective way for you to solve the problem but at least you can warn others off using Japanese.


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