# Only Color - You must not pass the 20th level

> A color identification game to test human eyesight and color perception. (iPhone/iPad app by SIMIN HUANG.)

- Source: https://appshunter.io/ios/app/only-color-you-must-not-pass-the-20th-level/id1084268188 (this page in markdown: same URL + `.md`)
- Developer: [SIMIN HUANG](https://appshunter.io/developer/687200417)
- Category: Games, Education, Adventure, Puzzle
- Price: Free
- Rating: 3.71/5 from 14 App Store ratings · 9 written reviews indexed
- Age rating: 4+
- Requires: iOS 6.0 · 16 MB
- Languages: English, Chinese, Chinese
- Released: 2016-03-21
- Data updated: 2026-06-10
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/only-color-you-must-not-pass-the-20th-level/id1084268188/reviews.md

## What is Only Color?

This is a game of eyesight test.
The human eye can identify about 6000 colors.
To test your eyesight
The game features
1, 24 checkpoints, difficulty is too large
2, red yellow blue color is given priority to

## Key features

- Eyesight test game
- Color identification challenges
- Focus on red, yellow, blue
- 24 checkpoints with increasing difficulty

## Recent user reviews (9 of 9)

All indexed reviews: https://appshunter.io/ios/app/only-color-you-must-not-pass-the-20th-level/id1084268188/reviews.md

### 1/5 — This is hard

*2022-01-06, version 1.5.0*

I’m stuck on level 19 how do you do it

### 5/5 — I passed 20

*2021-11-27, version 1.5.0*

It was really hard but just don’t give up!❤️

### 5/5 — Rip the colorblind people!

*2021-09-06, version 1.5.0*

But good game!

### 4/5 — I passed the 20th level

*2021-08-06, version 1.5.0*

Look at the title

### 5/5 — Easy at first, but definitely gets harder over level 20

*2021-01-08, version 1.5.0*

I honestly love this game so much and how simple it is. Especially when you fail or choose the wrong color, you get this little “Uh Oh” and it’s really cute! This game does get harder when you reach over level 20. When I did, I celebrated to myself, and went onto the next level, then realizing that it wasn’t going to be as easy as the other levels were. There are not much ads in this app as others and I appreciate that! This app definitely keeps me up and motivates me to try and go onto the next level. Overall, this game is great,  and I really recommend it if you like these types of apps!

### 5/5 — So hard

*2020-12-09, version 1.5.0*

I’m stuck on level 20

### 3/5 — Games good, but a bit easy

*2020-11-02, version 1.5.0*

The game is good, but it took me less than a hour to pass level 20. I guess on 19 and 20, so may be wrong, idk.

### 5/5 — Got It 🤪

*2018-01-16, version 1.5.0*

Love this game. Don’t look to long it will mess with you!🤪

### 1/5 — Rubbish

*2016-04-09*

This game is nothing to do with testing your eyesight. You have to tap the coloured block that is different from the rest and this is extremely easy. There is no point to the game and it's just a blatant attempt at advertising as after every 3 goes you are presented with yet another advert to download some game. Rubbishy don't waste your down. I've given it 1 star only because it wouldn't allow me to give 0 stars.

## Frequently asked questions about Only Color

### What is the gameplay like in Only Color?

Only Color is a game of eyesight test where players must identify colors. It features 24 checkpoints with increasing difficulty, prioritizing red, yellow, and blue colors to test your perception.

### What devices does Only Color support?

Only Color is available for iPhone, iPad, and iPod devices, allowing a wide range of Apple users to test their eyesight.

### What is the age rating for Only Color?

Only Color has an age rating of 4+, making it suitable for younger players and adults alike to test their color identification skills.

### How often is Only Color updated?

The latest version of Only Color is 1.5.0, which was last updated on March 20, 2017. While updates have been infrequent, the core gameplay remains focused on color perception.

### Does Only Color have ads?

No, Only Color does not contain advertisements, providing an uninterrupted experience for users testing their eyesight.

### What is the user rating for Only Color?

Only Color has a rating of 3.7 stars based on 14 ratings. This indicates a generally positive reception from its user base.

### Can I play Only Color offline?

The provided data does not specify if Only Color can be played offline. However, as a single-player eyesight test game, it is likely designed for offline use.

### What is the primary focus of Only Color's gameplay?

The primary focus of Only Color's gameplay is to test and challenge the user's eyesight by identifying subtle differences in colors, particularly red, yellow, and blue.

## Version history (last 5 releases)

### 1.5.0 — 2017-03-20

This app has been updated by Apple to display the Apple Watch app icon.

1. UI Update
2. Fixed bugs
3. Add Color Level

### 1.4.0 — 2016-11-23

1. Fixed Bugs
2. UI Update

### 1.3.0 — 2016-04-15

fix bugs

### 1.2.0 — 2016-04-06

Fix Bugs

### 1.1.0 — 2016-03-21

No release notes.

## Apps similar to Only Color

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [pop animals together-matching](https://appshunter.io/ios/app/pop-animals-together-matching/id6443537420) | 5.0 (1) | Free | Games |
| [Coin Hole](https://appshunter.io/ios/app/coin-hole/id1465099880) | 4.5 (10) | Free | Games |
| [Bilboquet](https://appshunter.io/ios/app/bilboquet/id1508042941) | 2.7 (6) | Free | Games |
| [随机跨栏大冒险](https://appshunter.io/ios/app/id1601387927) | 5.0 (1) | Free | Games |
| [友尽派对-兄弟齐心](https://appshunter.io/ios/app/id1577447443) | 2.4 (17) | Free | Games |
| [Groove Path: Music Game](https://appshunter.io/ios/app/groove-path-music-game/id6502860854) | 3.9 (8) | Free | Games |

## More apps by SIMIN HUANG

- [iPoem](https://appshunter.io/ios/app/ipoem/id822256898)
- [影視達人：708090後致青春之旅](https://appshunter.io/ios/app/708090/id883845854)
- [Guess The City-Quiz Game](https://appshunter.io/ios/app/guess-the-city-quiz-game/id909212970)
- [Guess The Movie:How many movies can you recognize?](https://appshunter.io/ios/app/guess-the-moviehow-many-movies-can-you-recognize/id931226617)
- [Baseballs](https://appshunter.io/ios/app/baseballs/id949553450)
- [The Grow](https://appshunter.io/ios/app/the-grow/id950072411)

All apps by SIMIN HUANG: https://appshunter.io/developer/687200417

---

*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 2026-06-10.*