Comparison

四字熟語の暗記・反復学習|エビ四 vs 四字熟語の王様

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

Head to head
About

四字熟語の暗記・反復学習|エビ四

Learn 1600 Japanese four-character idioms through engaging quizzes and a spaced repetition system. This app helps improve vocabulary and prepare for exams and general knowledge tests, incorporating proverbs and idiomatic expressions.

Highlights
  • 1600 four-character idioms included
  • Spaced repetition algorithm
  • Game-like learning
  • Simple and intuitive interface
  • Randomized quiz questions
  • Progress tracking for mastery
Features
Read full description

四字熟語を、ゲーム感覚で繰り返し学べる学習アプリ「エビ四」。 四字熟語の問題に取り組みながら、間違えた問題を繰り返し復習し、覚えた内容を時間を空けて確認できるように設計しています。四字熟語の暗記や復習、スキマ時間の語彙学習に活用できます。 ◆ エビ四の特徴 【ランダム出題で繰り返し学習】 四字熟語の問題をランダムに出題。同じ順番だけを覚えるのではなく、繰り返し問題に挑戦できます。 【間違えた問題を再出題】 一度間違えた問題は再び出題されるため、苦手な四字熟語をそのままにせず復習できます。 【正解した問題も時間を空けて再出題】 一度正解しただけで終わらず、時間を空けてもう一度確認。繰り返し学習しながら、覚えているかを確かめられます。 【4回連続正解で「殿堂入り」】 同じ問題に4回連続で正解すると殿堂入り。覚えた四字熟語が増えていく達成感を感じながら学習を進められます。 【殿堂入り率70%超で次のステージへ】 学習を進め、殿堂入り率が70%を超えると次のステージが解放されます。ゲームを進める感覚で四字熟語学習を続けられます。 ◆ こんな人におすすめ ・四字熟語を覚えたい ・四字熟語の暗記や復習を繰り返したい ・四字熟語の問題を解きながら学習したい ・語彙を増やしたい ・スキマ時間に短時間で勉強したい ・ゲーム感覚で学習を続けたい ・一度覚えた内容を繰り返し確認したい エビ四は、ランダム出題、再出題、殿堂入り、ステージ解放を組み合わせ、四字熟語を繰り返し学べるようにしたアプリです。 毎日のちょっとした時間を使って、四字熟語を少しずつ覚えていきましょう。

About

四字熟語の王様

Master Japanese four-character idioms with this quiz-style learning app. It offers over 3000 questions in various formats, making study sessions short and engaging. Ideal for exam preparation and cultural understanding.

Highlights
  • Over 3000 questions
  • Quiz-like learning
  • Short play sessions
  • Game-like progression
  • Exam preparation
  • Easy Q/A format
Features
Read full description

Welcome to King of Four Character Compounds! King of Four Character Compounds is a part of our “King” education series that focuses on quick learning in a fun quiz-like manner! Are you interested in learning four compound idioms? “四字熟語” is a key part of Japanese culture and language! With this application, you can study them in a fun and quiz-like manner! Even if you don't like this subject, this application may change your perception! This application is also useful for regular exams and college entrance exams since it adheres to high school studying guidelines. ◉ Overview ・Over 3000 questions of four character compounds in a 1 question to 1 answer format or multiple-choice format. ・Each play session is short, so you can study even if you only have a small amount of time! ・Comprehensive content that is useful for preparing for both high school and university exams. ・You can enjoy the application in a game-like manner by clearing questions and stages.   ◉ Features ・Efficiently memorize important points for important exams! ・Since it is in an easy Q/A format, you can study easily without using a book! ・If you want to get high scores, just repeat and memorize the answers! ・As you solve more problems, you will be able see how your exams may operate and function! ・Gift rewards are available if you clear our quest mode! ◉ Subscription ・¥ 360 / month, ¥ 1,800 / 6 months, ¥ 2,900 / year ・If you choose to purchase our “SPECIAL TRAINING PLAN", payment will be charged from your iTunes account. ・In addition, your account will be charged for renewal within 24-hours prior to the end of the current period. ・Auto-renewal may be turned off at anytime by going to your settings in the iTunes Store after purchase. ・Subscription price starts at ¥240 JPY/month. ・Prices are in JAPANESE yen, which may vary in countries other than JAPAN and are subject to change without notice. ・No cancellation of the current subscription is allowed during the active subscription period. ・You may use this application for free even if you do not purchase a plan. ◉ Others ・Terms of Service: https://sites.google.com/view/hanauta/tou ・Privacy Policy: https://sites.google.com/view/hanauta/policy ・Apple Terms of Service (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

四字熟語の暗記・反復学習|エビ四4 screens
四字熟語の王様4 screens

Verdict

The call

The clearest difference is review sentiment: 四字熟語の暗記・反復学習|エビ四 at 100% against 四字熟語の王様's 50%. 四字熟語の暗記・反復学習|エビ四 also leads on monetization model (ad-supported vs free with in-app purchases). On price, update cadence, ads and in-app purchases there is nothing between them.

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. 四字熟語の暗記・反復学習|エビ四 sells 1 one-off in-app purchase and 四字熟語の王様 sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

四字熟語の暗記・反復学習|エビ四 ships an update every 2 months, 四字熟語の王様 every 5 weeks. The most recent releases landed on October 24, 2026 and October 13, 2026 respectively.

Scorecard2 real differences · 6 level
四字熟語の暗記・反復学習|エビ四 versus 四字熟語の王様: the parameters behind the verdict, then further details
Parameter四字熟語の暗記・反復学習|エビ四四字熟語の王様
PriceFreeFree
Positive reviews100.0% of reviews — better50.0% of reviews
Update frequencyEvery 2 monthsEvery 5 weeks — better
AdsYesYes
In-app purchasesYesYes
MonetizationAd-supported — betterFree with in-app purchases
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS15.615.0 — better
Further details — not scored
Size13 MB138 MB
Age rating4+4+
Developerkeiji imamuraHANAUTA INC.

Customer experience

四字熟語の暗記・反復学習|エビ四

Written reviews5 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

四字熟語の王様

Written reviews4 reviews
Positive50.0%
Neutral0.0%
Negative50.0%

In-app purchases

1 purchases

四字熟語の暗記・反復学習|エビ四

One-time1
  • 広告非表示$2.99
3 purchases

四字熟語の王様

Subscriptions3
  • 特訓プラン$2.991 Month
  • 特訓プラン3 Days trial$15.996 Months
  • 特訓プラン3 Days trial$25.491 Year

Questions

Is 四字熟語の暗記・反復学習|エビ四 free?
四字熟語の暗記・反復学習|エビ四 is free to download, with in-app purchases available.
Is 四字熟語の王様 free?
四字熟語の王様 is free to download, with in-app purchases available.
Do 四字熟語の暗記・反復学習|エビ四 or 四字熟語の王様 have ads?
Both 四字熟語の暗記・反復学習|エビ四 and 四字熟語の王様 show ads.
Which is updated more often, 四字熟語の暗記・反復学習|エビ四 or 四字熟語の王様?
四字熟語の暗記・反復学習|エビ四 ships an update every 2 months, and 四字熟語の王様 every 5 weeks. Most recently, 四字熟語の暗記・反復学習|エビ四 was updated on October 24, 2026 and 四字熟語の王様 on October 13, 2026.

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