Life & fun · alternatives · 2026

24 alternatives to Rei Japanese number learning

learn japanese numbers game

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Rei Japanese number learning launched in 2024; newer entries below may have overtaken it.

1. 1
   Kanji Ninja▲140

   Fun game to learn 1000+ Japanese characters

   2016 · its alternatives →

2. 2
   Foreign Number Bingo▲60

   Learn numbers in other languages playing bingo

   2023 · its alternatives →

3. 3
   Simply Learn Japanese▲144

   Learn Japanese with 1000 phrases and intelligent flashcards

   2016 · its alternatives →

4. 4
   Kann▲173

   Master Japanese vocabulary you care about!

   2024 · kann.app · its alternatives →

5. 5NS
   Nihongo – Study Japanese using authentic text from games, songs, etc.▲139

   2015 · nihongo-app.com · its alternatives →

6. 6
   Fujiyama▲192

   Practice natural Japanese conversation in real-time with AI

   2024 · apps.apple.com · its alternatives →

7. 7
   Mainichi▲133

   Learn Japanese, one prefecture at a time.

   Jul 2026 · mainichiapp.com · its alternatives →

8. 8
   Kazu Navi (かずナビ)▲142

   Learn Japanese with clarity, context, and confidence

   2025 · kazunavi.com · its alternatives →

9. 9IB
   I built a game to help you learn neural network architectures▲321

   2024 · graphgame.sabrina.dev · its alternatives →

10. 10
    Hiragana Sensei 2▲90

    Learn Japanese hiragana and vocabulary with cute characters

    2023 · its alternatives →

11. 11
    LanGo▲140

    Learn Japanese with 1000 phrases and smart flashcards

    2016 · its alternatives →

12. 12
    Karate Math Dojo▲98

    Educational adventure game for learning math facts

    2024 · its alternatives →

13. 13JL
    Japanese Language Learning Forum▲71

    2020 · questions.japanesecomplete.com · its alternatives →

14. 14
    JapaneseTab▲144

    Learn Japanese with every new tab

    2019 · its alternatives →

15. 15
    WaseiGo▲86

    Learn the 1,000+ Japanese words that only look like English

    25d ago · waseigo.take-lab.com · its alternatives →

16. 16MN
    Master Numbers in a Foreign Language▲112

    2017 · foreignnumbers.com · its alternatives →

17. 17
    Mainichi▲112

    Learn Japanese each time you open a new tab

    2015 · its alternatives →

18. 18
    Vocly▲109

    Learn vocabulary in 50 languages with fun games

    2020 · its alternatives →

19. 19
    YOMI▲98

    The best collection of free game tutorials on the web

    2021 · its alternatives →

20. 20
    Mr. Takahashi: Speak Japanese ▲96

    Practice Japanese through conversations

    2024 · apps.apple.com · its alternatives →

21. 21
    LinguaLift Android▲84

    Learn Japanese, Russian and Hebrew at the speed of light.

    2018 · its alternatives →

22. 22
    Semaj AI▲34

    Learn to speak Japanese from Day 1

    2025 · its alternatives →

23. 23LJ
    Learn Japanese contextually while browsing▲92

    Hi HN, Just wanted to share a tool i've been working on to help with my own study routine. It’s a browser extension called Lingoku. The idea is simple: we spend hours browsing the web in English every day. This tool replaces some of the english words with Japanese vocabulary based on your japanese level (Similar to Toucan, but with a better user experience). It’s basically an attempt to make the "i+1" method actually passive, you understand the sentence because it's mostly english, but you pick up Japanese words naturally from the context. It uses an LLM in the backend to make sure the…

    Dec 2025 · lingoku.ai · its alternatives →

24. 24
    Math Tables▲3

    Math Tables and quizzes, and real-world examples.

    Nov 2025 · play.google.com · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →