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AI · alternatives · 2026

LG

24 alternatives to LLM grammar explainer and flash card maker for Japanese

Goal was to make it easy to jump from textbook learning into immersion. I wanted to play video games in Japanese, and started by using LLMs and a notebook, but figured it would be easier to streamline it all in an app. - You input a sentence in Japanese (easier on mobile where you can handwrite kanji you don't know) - App translates the sentence, explains the grammar, and gives you a list of flash cards - You choose some flash cards to save for studying later - You input a question about the explanation for more information - App explains some more and gives you more flash cards - Repeat And…

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. LLM grammar explainer and flash card maker for Japanese launched in 2024; newer entries below may have overtaken it.

  1. 1

    Learn languages with this flash card app, now on the web

    2017 · its alternatives →

  2. 2

    The future of learning with flashcards, by Duolingo

    2016 · duolingo.com · its alternatives →

  3. 3

    Hi HN, I watch A LOT of educational YouTube videos but wasn't forgetting a good chunk of the details because I was only really passively watching. So I made a tool that generates quiz questions/flashcards from YouTube videos, and uses spaced repetition like Anki or Duolingo to keep it in memory. Let me know if you find it cool/useful (or terrible ) or if you want to know a bit about the details!

    2024 · platoedu.org · its alternatives →

  4. 4AF

    I'm a long time lurker that recently quit my job to work on my own projects, a lot due to the inspiration from Hacker News. Now I have published my first serious project, an app for learning how to write Japanese characters. It's the app I always wanted but couldn't find when I was studying. It tries to be simple to use, you just start the quiz and go with the flow. There's no need to plan and manage your studies, and it uses spaced repetition for better retention. There's a promo page with more details up at http://www.kanjibyhand.com. It's only for Android so far. The free version includes…

    2012 · kanjibyhand.com. · its alternatives →

  5. 5IM

    The idea is actually quite simple. As a Japanese learner and a coder, I've always wanted there to be an open-source, 100% free for learning Japanese, similar to Monkeytype in the typing community. Unfortunately, pretty much all language learning apps are closed-sourced and paid these days, and the ones that are free have unfortunately been abandoned. But of course, just creating yet another language learning app was not enough - there has to be a unique selling point. And then I thought to myself: why not make it crazy and do what no other language learning app ever did by adding a gazillion…

    2025 · kanadojo.com · its alternatives →

  6. 6VI

    Hi HN, We've just published a lot of original, visual, and intuitive explanations of concepts to introduce people to large language models. It's available for free with no sign-up needed and it includes text articles, some video explanations, and code examples/notebooks as well. And we're available to answer your questions in a dedicated Discord channel. You can find it here: https://llm.university/ Having written https://jalammar.github.io/illustrated-transformer/, I've been thinking about these topics and how best to communicate them for half a…

    2023 · its alternatives →

  7. 7
    Mainichi▲133

    Learn Japanese, one prefecture at a time.

    Jul 2026 · mainichiapp.com · its alternatives →

  8. 8

    A CLI/TUI toolkit for bulk-processing and generating Anki flashcards with LLMs. - raine/anki-llm

    Nov 2025 · github.com · its alternatives →

  9. 9

    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 →

  10. 10

    Hi Everyone, I recently wanted to learn Japanese with duolingo but it kept giving me repetitive lessons. So I built an app that gives a variety of lessons from anime. You can try it out here:https://kanjieight.vercel.app/ Thanks everyone.

    Nov 2025 · kanjieight.vercel.app · its alternatives →

  11. 11

    Flash card language learning app for Mac, iPhone and iPad

    2021 · wokabulary.com · its alternatives →

  12. 12

    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 →

  13. 13
    Flash▲100

    Memorize anything with ease using simple flashcards

    2023 · apps.apple.com · its alternatives →

  14. 14

    Learn a language using flashcards, now on android

    2017 · play.google.com · its alternatives →

  15. 15

    Here is a tool I built initially for myself to help with my German and Greek language studies. It started as a hack for creating Anki cards from native language audio. It extracts the words, finds their base forms (lemmas) and groups the examples by the lemma. At some point I realised that I have a transcription with word level timestamps that opens a lot of other opportunities. So I added a mode to click the first and last word in the transcript and it starts looping with the right gap and repeat count. Another feature I use a lot is selecting an audio fragment, sending a predefined prompt…

    Jun 2026 · lingochunk.com · its alternatives →

  16. 16

    Collect and practice your individual foreign language words

    2023 · wokabulary.com · its alternatives →

  17. 17

    A proof-of-concept language learning app that uses LLMs to generate definitions of unknown words using only previously mastered vocabulary.

    Dec 2025 · simedw.com · its alternatives →

  18. 18

    Turn any text into Anki flashcards in seconds

    2023 · aitocards.com · its alternatives →

  19. 19
    Cardy▲64

    A simple and easy to use flashcard app to learn vocabulary

    2019 · play.google.com · its alternatives →

  20. 20

    All your language learning flashcards in one place.

    2021 · deckmill.com · its alternatives →

  21. 21IB

    Hey HN! I’m Alex, and one of my favorite ways to learn languages is by reading novels. Currently I’m reading 三体 (3 body problem), but one problem I've always had is it takes ages to look up words, and add them to Anki flashcards so I can remember them. 三体 is especially brutal with so much sci-fi vocab. That’s why I built Readly. I snap a pic of the page I’m reading, it loads the text in-app and lets me lookup words, add to Anki-style flashcards, or ask AI questions about the text, all in a single tap. It's a huge time saver. My specific learning strategy, if anyone wants to replicate it: 1.…

    2025 · readly.ink · its alternatives →

  22. 22

    Hello everyone. I built an AI-based toolset to help me with language learning. I wanted to be able to easily generate very specific study content and get rapid feedback on my writing. Unlike most language apps, it doesn’t actually try to teach you a language. Instead, it’s a collection of tools for people at an intermediate level who already have a learning process It’s particularly great for Anki users. There a demo video on the login page, and I set up anonymous auth for people who want to test it without creating an account. Feedback and bug reports welcome.

    2025 · drillapp.xyz · its alternatives →

  23. 23

    Japanese Writing & Speaking App

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

  24. 24AL

    Hi HN, I have been studying languages as a hobby for a large portion of my life. Hence, I decided to create a spaced repetion app with the techniques that have helped me the most so far. It's aims to be made simple for the regular user to plug and play. I'd love to hear your feedback!

    2025 · koshka.app · its alternatives →

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