四字熟語の暗記・反復学習|エビ四

Contains adsIn-app purchases
Content rating
Everyone
1K+
Downloads
Content rating
Everyone
Learn more
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image

About this game

"Ebi-Yo" is a learning app that lets you repeatedly learn four-character idioms in a game-like format.

It's designed so that you can work on four-character idiom problems, repeatedly review incorrect answers, and check what you've learned after a period of time. It can be used for memorizing and reviewing four-character idioms, and for vocabulary learning during spare time.

◆ Features of Ebi-Yo

【Random Questions for Repeated Learning】
Four-character idiom problems are presented randomly. Instead of just memorizing the same order, you can challenge yourself with problems repeatedly.

【Incorrect Answers are Revisited】
Problems you answered incorrectly are presented again, so you can review difficult idioms without leaving them unresolved.

【Correct Answers are Revisited After Time】
Even if you answer correctly the first time, you can check it again after a period of time. You can check your memory through repeated learning.

【"Hall of Fame" for 4 Consecutive Correct Answers】
If you answer the same problem correctly four times in a row, you'll be inducted into the Hall of Fame. You can learn while feeling a sense of accomplishment as your memorized four-character idioms increase.

[Achieve over 70% Hall of Fame status to unlock the next stage]
As you progress through your studies and your Hall of Fame status exceeds 70%, the next stage will be unlocked. Continue learning four-character idioms in a game-like way.

◆ Recommended for people who:

・Want to memorize four-character idioms

・Want to repeatedly memorize and review four-character idioms

・Want to learn by solving four-character idiom problems

・Want to increase their vocabulary

・Want to study in short bursts during spare time

・Want to continue learning in a game-like way

・Want to repeatedly review content they have already learned

EbiYo is an app that combines random question presentation, re-presentation, Hall of Fame status, and stage unlocking to allow you to repeatedly learn four-character idioms.

Let's learn four-character idioms little by little using small amounts of time each day.
Review four-character idioms in a game-like way with randomly selected questions, replays of incorrect answers, and a hall of fame system. Perfect for vocabulary learning during spare moments.
Updated on
Aug 26, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • This app may share these data types with third parties
    Location, Personal info and 3 others
  • No data collected
    Learn more about how developers declare collection
  • Data is encrypted in transit
  • Data can’t be deleted

What’s new

・買い切りの「プレミアム版」を追加しました。
・プレミアム版では、広告非表示、オフライン学習、エビ階級300問解放をご利用いただけます。