WaniKani vs Anki (2026): buy the deck or build it

The real choice is not which SRS algorithm is better. It is whether you want to buy a kanji curriculum or build one. WaniKani sells you the curriculum. Anki sells you nothing at all and hands you the engine.

I build BetterLingo from Tokyo, and I get asked this often enough that a straight answer is worth writing down — including the parts where neither of these is the tool I make.

What each one actually is

WaniKani is a fixed 60-level path through roughly 2,000 kanji and 6,000 vocabulary words. It decomposes each kanji into radicals, gives you a mnemonic for every one, and decides the order for you. You do not choose what to study next; that is the product.

Anki is a free, open-source spaced-repetition engine. It teaches nothing. It reviews whatever cards you put into it, on a schedule you can tune down to the parameter. The quality of your Anki study is entirely the quality of your deck and your discipline.

Where WaniKani is straightforwardly better

• Ordering. Radical to kanji to vocabulary is a genuine curriculum, sequenced so that each new kanji reuses parts you already know. Anki has no opinion about order, and most people who build their own deck sequence it badly.
• Mnemonics that already exist. Writing 2,000 good mnemonics is a year of work you do not have to do.
• It removes a decision. The reason people stall on Anki is rarely the algorithm; it is opening the app and having to decide what to add today.

Where Anki is straightforwardly better

• Price. Free on desktop, Android and the web. WaniKani is around $9/month or $299 lifetime, with the first three levels free.
• Scheduling control. Anki's modern scheduler adapts to your actual recall. WaniKani's intervals are fixed and cannot be tuned when a level is too easy or too punishing.
• Anything outside kanji. Grammar, listening, sentence mining from something you are reading — WaniKani will not do these and does not claim to.
• You keep your data. Your deck outlives any subscription.

The honest test: which failure sounds like you?

Both tools fail in a characteristic way, and choosing well means picking the failure you are less likely to hit.

WaniKani fails as a backlog. You miss a fortnight, come back to 400 reviews, and quit rather than face them — and because the order is fixed, you cannot skip ahead to the part you care about.

Anki fails as an empty deck. You install it, download a shared deck of 2,000 kanji you did not choose, review 40 cards, and never open it again, because nothing about it was yours.

If you have already abandoned a self-built deck once, buy the curriculum. If you have already resented paying for study order you did not agree with, build it.

What neither of them does

Both are recognition trainers. They ask you to recall a reading or a meaning, and you grade yourself. Neither one ever asks you to produce Japanese and tells you whether what you wrote is right — and on JLPT N3 upward, the gap between recognising a grammar point and using it is where most of the lost marks live.

That gap is what I built BetterLingo for: it marks written answers to JLPT-style questions and tells you why yours was wrong. It is worth being blunt about what that means it is not. BetterLingo is small and new. It has no mature SRS deck library, nothing like WaniKani's mnemonic set, and nothing like Anki's ecosystem of community decks and add-ons. If what you need is a kanji SRS, one of the two tools on this page is the answer and mine is not.

What I would actually do

Kanji from a curriculum, grammar and production from somewhere else. WaniKani or a good shared Anki deck for the characters; then written practice with feedback for the part a flashcard cannot check. Running one recognition tool and one production tool beats running two recognition tools.

If you are choosing between grammar tools rather than kanji tools, Bunpro vs Anki covers the same trade-off on the grammar side, and WaniKani vs MaruMori covers the all-in-one alternative.

Next steps

Pick the kanji tool that matches the failure you are less likely to hit, then add one thing that checks what you can write rather than what you can recognise. If you want to see what that feels like on a real JLPT question, try a practice quiz and read the marking on an answer you got wrong.