Genki vs Bunpro (2026): Textbook or Grammar App?

Genki and Bunpro do different jobs. Genki is a 23-lesson printed course that teaches you elementary Japanese from zero. Bunpro is a subscription grammar SRS with 900+ grammar points that quizzes you on grammar you have already met. Start with Genki if you have no grammar yet. Add Bunpro once you have chapters worth remembering. Switch to Bunpro alone after Genki II.

I build BetterLingo from Japan, and this page is written from that side of the desk. Prices and counts below were read from the publishers' own sites in October 2026. Where I could not confirm something from a primary source, I say so. What BetterLingo is not comes near the bottom.

Quick comparison

  • What it is: Genki is a textbook course. Bunpro is a web and mobile grammar SRS.
  • Size: Genki has 23 lessons across two volumes (lessons 1-12 and 13-23). Bunpro lists 900+ grammar points and 10,000+ example sentences.
  • Price: Genki is a one-time book purchase. Bunpro has a free tier, a US$5/month Premium plan and a US$150 lifetime plan.
  • Level: Genki stops around elementary level (roughly N5 to N4). Bunpro goes on to N1.
  • Teaches from zero: Genki yes. Bunpro only partly, through its explanations.
  • Keeps grammar from fading: Bunpro yes. Genki no.

Why this comparison is confusing

Search genki vs bunpro and you mostly get forum threads. That makes sense, because it is a category mismatch: a book against a web app. People search it anyway because both cost money, both say they cover grammar, and a beginner cannot tell from outside that one is a course and the other is a review machine.

What each one actually is

Genki: An Integrated Course in Elementary Japanese is a textbook from The Japan Times Publishing, now in its 3rd edition. Its own site, genki3.japantimes.co.jp, lists Volume 1 and Volume 2, a separate workbook for each, a self-study section and a digital store. The course runs 23 lessons: 1 to 12 in volume 1, 13 to 23 in volume 2. Each lesson mixes dialogues, grammar notes, vocabulary and short reading and writing tasks. Listening audio is delivered through the publisher's OTO Navi player app. The answer key is a separate purchase: resellers such as WAFUU sell it at around US$12, which matters if you plan to self-study the workbook.

Genki is not a JLPT book, so any level mapping is approximate. Volume 1 sits around N5 and volume 2 around N4. Some learners also report meeting a few points that Bunpro files under N3, but that comparison is anecdotal and I would not lean on it.

Bunpro is a grammar SRS. You add grammar points to your reviews and it asks you to produce the sentence at spaced intervals, rather than pick from four options. Each point has an explanation and example sentences. Per bunpro.jp/pricing: a free tier ("Free Forever", with limited access), Premium at US$5/month, and Lifetime at US$150 one-time. New accounts get 30 days of Premium with no card required. The pricing page has a yearly toggle but shows no yearly price when logged out, so I am not quoting one. Bunpro also publishes grammar paths for Genki I and II, which is how you can follow the book's order inside the app. Its community has noted that the example sentences in a textbook path can use points you have not reached yet, because they were written for Bunpro's own order.

Where Genki is better

  • It teaches. Bunpro assumes you have met a point. Genki is where you meet it.
  • It decides the order. You never have to choose what to learn next, which is the decision that stalls most self-study.
  • Grammar sits in situations. Dialogues give a reason to say the sentence. An SRS shows you a pattern with the situation stripped out.
  • It is the standard. Classes use it and tutors know it. Almost any question you have about it has been answered online already.
  • The cost is a one-off. A book does not renew in March when you stop opening it.

Where Bunpro is better

  • It remembers for you. A textbook teaches ～てしまう in one chapter and never asks again. An SRS keeps asking.
  • It keeps going. Genki ends at the elementary level. Bunpro continues through N3, N2 and N1, so you do not change tools when the book runs out.
  • It tests production. Typing the form into a blank is a harder, more honest test than recognising it.
  • It handles lookalikes. Its explanations spend effort on near-synonym pairs that a textbook covers in a line.
  • It has a free tier and a no-card trial. You can check whether it suits you before paying.

Where each one falls down

Genki fails on retention and on the ceiling. Finishing both volumes leaves you with a pile of grammar you met once. There is no Genki 3 after Genki II, so you change tools halfway, and that is where many people quietly stop.

Bunpro fails as a first teacher. From zero, every review is new, the queue grows faster than you learn, and the explanations carry a teaching load they were not written for. It is also a subscription that costs more the slower you go, unless you buy lifetime.

Which one should you pick

  • No grammar yet: Genki first. Add Bunpro a few chapters in, when you can feel earlier lessons slipping.
  • Finished Genki I and II: Bunpro alone, working up from the end of the Genki path. This is the case it is built for.
  • Picked up Japanese by ear or in Japan, grammar patchy: Bunpro to find the holes, Genki only as a reference.
  • Studying for N3 or higher: Genki is out of the picture. Bunpro, or a level-specific grammar book.
  • Budget is the constraint: a used Genki plus Bunpro's free tier beats a subscription you will pause in March.

If you are not sure which level you are at, the free JLPT level test gives a rough answer in a few minutes and tells you whether Genki's range is even relevant to you.

Using them together

Read the chapter, do the workbook pages, then add that chapter's grammar points to Bunpro so they keep returning. The failure mode is adding points to the SRS before you have read an explanation anywhere. Then reviews turn into guessing, and guessing does not stick.

Where BetterLingo fits, and what it is not

This is my project, so I will be direct. BetterLingo is a JLPT practice app that marks written answers: you answer in your own Japanese and get it graded, rather than choosing from four options. It targets the gap both tools leave open, which is knowing a form versus using it under exam conditions.

What BetterLingo is not: it is not an SRS. It has no deck library, no card editor, no dictionary import, no textbook mapping, and no kanji curriculum. It is small and new, and it will not replace Genki as a course or Bunpro as a review engine. If you are choosing one main tool, choose between those two using the criteria above.

Next steps

If you already use Genki or Bunpro and want to know whether the grammar has stuck, write one sentence of your own into the free Japanese grammar checker. It needs no account and explains the corrections in English. It is an uncomfortable test, and that is the point. For more head-to-heads, see Bunpro vs Renshuu and Bunpro alternatives.