Kumi vs competitors
How Kumi compares to popular Japanese apps like WaniKani, Bunpro, Anki, Duolingo, LingoDeer, and Migaku, and what it would cost to match Kumi by stacking them or hiring a tutor.
Most serious Japanese learners end up stitching together several different apps: one for kanji, another for grammar, a general flashcard tool for everything else. That's not on you. The tools are built that way. Most Japanese learning apps specialize in one part of the language, and specializing well is a legitimate approach.
Kumi takes a different approach. Rather than positioning itself as a replacement for any one specific tool, Kumi aims to unify kana, radicals, kanji, vocabulary, and grammar into a single connected system, so progress in one area informs what you study in another. The comparison below is meant to be a fair, factual look at where that approach differs from other well-known options, not a claim that any other tool is bad at what it does.
Most popular Japanese apps each do one part of the language well, so learners end up combining several: one for kanji, one for grammar, a flashcard tool for the rest. What each one does well, and where the gaps are. Kumi is built to cover all of it in one place, tracking your real progress across every domain with KMT.
Kumi: one connected system
You could stitch together three apps. Or learn the whole language in one place.
Domains
Plus
The tools most learners piece together
Kanji + vocab only
The kanji and vocab coverage is excellent. Grammar, reading, and listening just aren't part of the deal, so most people run it alongside other tools.
Grammar only
Grammar is all it does. Within that lane it's the deepest grammar SRS available. Kanji, vocabulary, and a dictionary all live in other apps.
DIY flashcards
Endlessly flexible, but it ships empty: no curriculum, no dictionary. You build and maintain every card yourself before you learn a thing.
Gamified beginner course
The Japanese course only goes so far: shallow, tops out around upper-beginner, and built more around streaks than long-term retention. The fun and the free tier are real.
Beginner course
One tidy structured course among a dozen languages. That breadth costs depth: it isn't Japanese-specific, and it stops well short of advanced material.
Immersion add-on
If you want to mine words from Netflix and YouTube, it's great at exactly that. It's a companion tool, not a curriculum; there's no structured path from zero.
Reflects each product's primary focus as of 2026-07-01; features and pricing change over time. Every tool here is good at what it focuses on.
Covering what Kumi does with separate tools means paying a few subscriptions at once, and it still is not everything in one place. Here is roughly how that adds up next to a weekly tutor and next to Kumi.
Piece it together
across three separate apps
A weekly tutor
One-on-one help is valuable, but even a single lesson a week adds up fast, and it does not review with you the other six days.
one 1-hour lesson a week at roughly $25 / hr
Kumi
Everything in one place, one subscription.
Illustrative prices as of 2026-07-01; third-party pricing changes over time. Tutor cost assumes one 1-hour lesson per week at a typical online rate.
Key takeaways
KMT explained
What is KMT?
KMT (Kumi Mastery Tiers) is a 1 to 10 mastery scale Kumi tracks separately for each domain. Unlike JLPT levels, which have no official study list, it reflects what you have actually mastered and decides what to study next.
IME basics
What is an IME?
An IME (Input Method Editor) lets you type Japanese by spelling sounds in romaji and converting them to hiragana, katakana, or kanji. This guide shows how it works and how to type with one.