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AI · alternatives · 2026

24 alternatives to Kazu Navi (かずナビ)

Learn Japanese with clarity, context, and confidence

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

  1. 1

    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 →

  2. 2
    Mainichi▲133

    Learn Japanese, one prefecture at a time.

    Jul 2026 · mainichiapp.com · its alternatives →

  3. 3
    Fujiyama▲192

    Practice natural Japanese conversation in real-time with AI

    2024 · apps.apple.com · its alternatives →

  4. 4
    Kann▲173

    Master Japanese vocabulary you care about!

    2024 · kann.app · its alternatives →

  5. 5
    Kansei▲168

    Practice languages with AI companions

    2023 · its alternatives →

  6. 6
    Mainichi▲112

    Learn Japanese each time you open a new tab

    2015 · mainichi.me · its alternatives →

  7. 7

    Hey HN, it’s been 8 years since I posted on here about the launch of my Japanese dictionary app Nihongo [0] and I’m finally back with a new app: Nihongo Lessons! Think of Nihongo Lessons as the textbook to Nihongo’s dictionary. It’s an app for learning Japanese, specifically made for learners who are serious about becoming fluent, and want a guided set of content that will help them efficiently acquire vocabulary and grammar. The project came about when Adam Shapiro of Japanese Level Up (Jalup) [1] announced last April that he was shutting Jalup down. As a fan of Adam’s work I was bummed to…

    2022 · lessons.nihongo-app.com · its alternatives →

  8. 8

    Learn Japanese with every new tab

    2019 · chromewebstore.google.com · its alternatives →

  9. 9
    LangAI▲252

    The most natural way to learn a new language

    2024 · langai.io · its alternatives →

  10. 10

    Learn Japanese hiragana and vocabulary with cute characters

    2023 · apps.apple.com · its alternatives →

  11. 11

    Fluency through Speech: Conversational AI Japanese Tutor

    2025 · aijapanesetutor.org · its alternatives →

  12. 12
    SpeakAI▲134

    Learn multiple languages by speaking with AI

    2023 · its alternatives →

  13. 13

    The best place to start learning the Japanese alphabet

    2019 · apps.apple.com · its alternatives →

  14. 14
    WaseiGo▲86

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

    Aug 2026 · waseigo.take-lab.com · its alternatives →

  15. 15JL

    2020 · questions.japanesecomplete.com · its alternatives →

  16. 16
    Kanso▲105

    A better way to learn Japanese 🇯🇵

    2017 · teamkanso-com.l.ink · its alternatives →

  17. 17

    A Japanese guide to learning Japanese grammar

    2015 · apps.apple.com · its alternatives →

  18. 18

    Real talk. Real Japanese.

    2025 · apps.apple.com · its alternatives →

  19. 19

    Just for fun, I built a language learning tool. It represents Chinese and Japanese as graphs of characters, with connections indicating given characters can form a word. It can also decompose characters to give clues on how they're pronounced, analyzes words to understand which ones are commonly used together, and more. It's fully interactive, supports offline use, generates flashcards, has sentences from humans and from AI, and plenty of other features. Check out the README for details. https://github.com/mreichhoff/HanziGraph

    2024 · github.com · its alternatives →

  20. 20

    Learn to speak Japanese from Day 1

    2025 · its alternatives →

  21. 21
    Dozo▲8

    Learn Japanese N5 to N1 with a real teacher in your corner

    Aug 2026 · nihongodozo.com · its alternatives →

  22. 22
    Kanjimi▲14

    Learn Japanese by reading real content on internet

    2020 · its alternatives →

  23. 23GA

    I've been fascinated by the Japanese language and culture for a while now, and I wanted to create a simple, no-fuss way for beginners to get started. So, I built *[Nihongo](https://nihongo.site/)*, a free and open-source web app designed to help you learn the fundamentals of Japanese in about a month. The name of the app, Nihongo (日本語), is the Japanese word for the "Japanese language." You can check it out here: *[https://nihongo.site/](https://nihongo.site/)* And for those who like to tinker, the code is available on GitHub:…

    2025 · nihongo.site · its alternatives →

  24. 24
    Kataru▲32

    Speak Fluently!

    2024 · its alternatives →

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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 →