# Master the Units! — Fun Unit Conversion Practice

> Fun Unit Conversion Practice (iPhone/iPad app by Kazuya Takayama.)

- Source: https://appshunter.io/ios/app/master-the-units/id6767955206 (this page in markdown: same URL + `.md`)
- Developer: [Kazuya Takayama](https://appshunter.io/developer/1115207317)
- Category: Education, Productivity
- Price: $2.99
- Age rating: 4+
- Requires: iOS 13.0 · 22 MB
- Languages: American English
- Released: 2026-07-08
- Data updated: 2026-08-30
- User reviews in markdown: https://appshunter.io/ios/app/master-the-units/id6767955206/reviews.md

## What is Master the Units!?

Unit Master! is a learning app designed to help elementary school students (grades 4-6) understand unit conversions through fun and repetitive practice.

You can review units such as length, weight, volume, area, and time through learning mode, conversion practice, quizzes, time trials, and review.

Main Features
* Learning mode allows you to learn while viewing unit relationships
* Conversion practice allows you to input and check your answers
* Quizzes offer both multiple-choice and input-based questions
* Time trials require you to complete questions within a time limit
* Review based on incorrect answers
* Performance display including total number of questions answered, correct answer rate, and consecutive learning days
* Coins and badges to motivate continued learning
* BGM, sound effects, and furigana display settings

For area units, you'll learn about the concept of multiplying by 100 with each step change. Word problems involving time and area are also provided, allowing you to practice matching units to different situations, rather than simply memorizing them.


## Version history (last 1 release)

### 1.0 — 2026-07-08

No release notes.

## More apps by Kazuya Takayama

- [CT Passport Head](https://appshunter.io/ios/app/ct-passport-head/id1115207318)
- [CT Passport Abdomen](https://appshunter.io/ios/app/ct-passport-abdomen/id1225001758)
- [CT Passport Chest](https://appshunter.io/ios/app/ct-passport-chest/id1367159560)
- [CT Passport Heart / MRI](https://appshunter.io/ios/app/ct-passport-heart-mri/id1462755532)
- [FeelLog FEELCYCLE記録用アプリ](https://appshunter.io/ios/app/feellog-feelcycle/id1515738425)
- [CT PassQuiz Head/Brain / MRI](https://appshunter.io/ios/app/ct-passquiz-headbrain-mri/id1524292397)

All apps by Kazuya Takayama: https://appshunter.io/developer/1115207317

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-30.*