Numbiro

Contains adsIn-app purchases
4.4
18 reviews
1K+
Downloads
Content rating
Everyone
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About this app

Learning the Japanese numbers is one thing, but recognising spoken numbers during everyday conversation is another! With Numbiro you can perfect your abilities by listening to numbers spoken in Japanese and identifying them. You can select the range of numbers you are learning, from single-digit numbers to millions or even billions. You can even practice Japanese counters, with 20 to choose from in the free version. See how many you can get correct in a minute!

This is the ad-supported version of Numbiro. Search the Play Store for the premium, ad-free version if you want to support the app!
Updated on
Jul 13, 2025

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.
This app may share these data types with third parties
Location, App activity and 2 others
No data collected
Learn more about how developers declare collection
Data is encrypted in transit
Data can’t be deleted

Ratings and reviews

4.4
18 reviews
Alyxai Alex
July 3, 2024
This app is perfect! You can practice common counters (advanced comes with premium, which is only 2.49 USD), and numbers with one to seven digits in an auditory format! The best feature for me is being able to edit the quiz time so I can test as long as I want without feeling rushed. It's really helped to cement my skills, especially with counters. Definitely the most effective thing I could've asked for, and I'm very glad I found it :) Edit: I bought premium!
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Jordan Rouse
November 14, 2023
Edit after update: lessons are still good and varied, adverts are less intrusive now and the life time price is definitely tempting! Great work on the update The lessons are OK, but there are far too many adverts. They break up the flow of learning. Can't get a good sample of the app to even think about paying to remove adds, as the adverts are too frequent.
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Sulisoft
September 8, 2023
Hi, thanks for your honest feedback. In the latest release I have reduced the frequency of adverts. I'd love to know what you think of the app now :)
Mateus Gabriel
March 15, 2022
Pretty good app, helps in a common problem that someone learning Japanese might face. To the dev: please consider making the app offline. I think it would help people like me, who practice in any place, anytime (with or w/o internet).
2 people found this review helpful
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Sulisoft
December 9, 2023
It's definitely on my todo list. It's quite a bit task unfortunately, but I will hopefully get there at some point!

What’s new

Internal build