Comparison

Kanji Flash Study vs Kotoba Coach

Price, ratings, monetisation and update history for both apps, side by side β€” with what reviewers say about each.

Head to head
About

Kanji Flash Study

Features
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Learn and retain Japanese kanji the proven way β€” with spaced repetition. Kanji Flash Study covers all 1,318 kanji from JLPT N5 through N1, complete with meanings, on'yomi and kun'yomi readings, stroke counts, and example vocabulary. The built-in SM-2 algorithm β€” the same system behind Anki β€” schedules your reviews at scientifically optimal intervals so you spend more time on what you're about to forget and less time on what you already know. HOW IT WORKS Pick your JLPT levels and session size, then tap Start Review. Each card shows a kanji character β€” tap to reveal its meaning, readings, and an example word. Rate your recall as Again, Hard, Good, or Easy, and the app adjusts the next review date automatically. Cards you miss are re-queued in the same session so you always end on a strong note. FEATURES - 1,318 kanji across JLPT N5, N4, N3, N2, and N1 - SM-2 spaced repetition for efficient long-term memorization - On'yomi and kun'yomi readings with example words and translations - Searchable kanji library with level filters and progress indicators - Statistics dashboard with streak tracking, accuracy, activity heatmap, and per-level breakdown - Daily study reminders via notifications - Fully offline β€” no account, no internet, no subscriptions - VoiceOver and Reduce Motion accessibility support - Clean, native SwiftUI interface designed for focused study BUILT FOR EVERY LEARNER Whether you're starting with basic N5 kanji or tackling advanced N1 characters, the app adapts to your pace. Select one level or all five β€” your progress is tracked independently for each. YOUR PROGRESS, YOUR DEVICE All study data stays on your device. No sign-up required, no data leaves your phone. Just open the app and start learning.

About

Kotoba Coach

Features
Read full description

Kotoba Coach helps you build Japanese vocabulary with a calm daily study flow designed for JLPT learners from N5 to N1. Instead of scrolling through endless word lists, Kotoba Coach gives you a focused set of words to study each day. You can follow the suggested list or choose the words you want to learn today. Key features: β€’ JLPT vocabulary from N5 to N1 Study by level and filter words by chapter category, context, progress, and keyword. β€’ Daily word plan Set your daily goal, choose today’s words, and keep your learning focused. β€’ Mini lessons View each word with reading, meaning, audio, and example sentences. β€’ Context examples Learn how words are used in real situations such as daily life, school, work, travel, news, culture, and more. β€’ Audio practice Listen to word audio and example audio. Loop examples, play selected examples, and adjust playback speed. β€’ Smart review Review learned words through listening and typing practice so you can check what you actually remember. β€’ Progress tracking See your learned words, today’s progress, and mastered vocabulary. β€’ Widgets and Apple Watch Keep your current word and daily progress close by. Study and review from your wrist. β€’ Translation support Use your preferred app language and translate word meanings or example sentences when needed. β€’ Reminders Set morning word planning, evening progress check, and optional study nudges to build a steady habit. Kotoba Coach is built for learners who want one clear focus each day: learn a small set of words, hear them often, review them at the right time, and keep moving forward. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://your-privacy-policy-url

Screenshots

Kanji Flash Study4 screens
Kotoba Coach4 screens

Verdict

The call

The clearest difference is in-app purchases: Kanji Flash Study at none against Kotoba Coach's 2. On price, ads, device support and iOS requirement there is nothing between them.

Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Kotoba Coach sells 2 in-app purchases, starting at $2.99 per month. Kanji Flash Study asks for nothing beyond the download.

Scorecard1 real difference Β· 5 level
Kanji Flash Study versus Kotoba Coach: the parameters behind the verdict, then further details
ParameterKanji Flash StudyKotoba Coach
PriceFreeFree
Update frequencyEvery 3 daysβ€”
AdsNoNo
In-app purchasesNo β€” betterYes
DevicesiPhone, iPadiPhone, iPad, Apple Watch β€” better
Requires iOS16.6 β€” better17.0
Further details β€” not scored
Size2 MB26 MB
Age rating4+4+
DeveloperQuinten SandbergVIEN NGUYEN VAN

In-app purchases

None

Kanji Flash Study

No in-app purchases

2 purchases

Kotoba Coach

Subscriptions2
  • Monthly Pro7 Days trial$2.991 Month
  • Yearly Pro7 Days trial$24.991 Year

Questions

Is Kanji Flash Study free?
Kanji Flash Study is free to download, with no in-app purchases.
Is Kotoba Coach free?
Kotoba Coach is free to download, with in-app purchases available.
Do Kanji Flash Study or Kotoba Coach have ads?
Neither Kanji Flash Study nor Kotoba Coach shows ads.

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