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Inku vs WaniKani

Inku vs WaniKani for Japanese

WaniKani is a 2,000+ kanji-focused SRS. Inku is Japanese flashcards with kana, vocabulary, phrases, and 400+ kanji with guided lessons.

Bao HuaUpdated August 26, 202612 min read
Category: Kanji-focused SRSPricing: Paid plans, see official pricingSince: 2012

How does Inku compare to WaniKani?

Both apps teach kanji. Inku teaches 400+ kanji with guided lessons (readings, meanings, memory cues, sample words) that flow into the same flashcard review as your kana and vocabulary. WaniKani is a radical-based, kanji-focused path through 2,000+ kanji, and it also teaches vocabulary on that path. Choose by mix and scale.

When is Inku the better pick?

  • You still need hiragana and katakana. Inku teaches all 92 core kana. WaniKani is a kanji course; its docs say you will need hiragana within a few days.
  • You want vocabulary and phrases with kanji. Inku includes JLPT vocabulary, phrases, and 400+ kanji with guided lessons. WaniKani teaches vocabulary as part of its kanji path.
  • You want an iPhone flashcard app. Inku is a native iPhone app. WaniKani is web-first, with third-party mobile clients.

When is WaniKani the better pick?

  • You want a larger structured kanji path. WaniKani covers 2,000+ kanji across 60 levels. Inku includes 400+ kanji with guided lessons across N5-N3.
  • You want radicals and a level ladder. WaniKani's 60 levels are a kanji-focused progression that also teaches vocabulary. Inku's kanji lessons sit beside kana and vocab review.

Feature-by-feature

Sources and pricing

Pricing last checked: April 28, 2026. Prices can vary by country, platform, checkout, tax, and promotion.

FeatureInkuWaniKaniBest fit
Hiragana/katakanaAll 92 core charactersNeeded soon after you start
Kanji400+ kanji with guided lessons, N5-N32,000+ structured curriculum
Vocabulary and phrasesJLPT N5-N1 plus phrasesTied to the kanji path
AudioPronunciation audio for words and phrasesOfficial audio on the site
MobileNative iPhone appWeb or third-party apps
Free startFree to download; Pro unlocks the libraryFree through level 3

Inku's favor · WaniKani's favor · roughly even

The honest take

Inku is the broader Japanese flashcard app, including 400+ kanji with guided lessons. WaniKani is the larger kanji-focused curriculum. Use the one that matches the job, or both if you want extra kanji runway.

Verdict

Use WaniKani if your main job is a 2,000+ kanji-focused radical course. Use Inku if you want kana, vocabulary, phrases, and 400+ kanji with guided lessons in one iPhone app.

Start with Inku if you want the full mix. Add WaniKani when you want a larger kanji-focused runway.

How we research this

Every comparison here draws on public product pages, app store listings, and help docs, linked under each section and dated where pricing is involved (last checked April 28, 2026). For full transparency: Inku audio is professionally synthesized rather than human recorded, and we never publish fabricated reviews or ratings. Found an error? Email app@inkujapanese.com and we will fix it.

Common questions

Do WaniKani and Inku overlap?+

Both teach kanji and vocabulary. Inku also teaches kana, JLPT vocabulary, and phrases, with 400+ kanji with guided lessons across N5-N3. WaniKani is the 2,000+ kanji-focused course.

Is Inku a free WaniKani alternative?+

WaniKani is free through level 3. Inku is free to download; Inku Pro unlocks the full library and kanji lessons. US prices are $49.99/year or $3.99/week, with a 7-day trial on the yearly plan where Apple offers it. Confirm the price and any trial in Apple's in-app subscription offer before you subscribe.

Looking at this as a switch rather than a head-to-head? See the best WaniKani alternative for Japanese.

Other Inku comparisons worth a look:

Or zoom out: the best Japanese flashcard apps roundup, all comparisons, and all alternatives. New to Japanese? Start with the full learning roadmap.

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