# Color Select Test vs Zen Power Exam

The clearest difference is ads: Color Select Test at none against Zen Power Exam's shown. Color Select Test also leads on iOS requirement (8.0 vs 12.0). Zen Power Exam's advantage is update cadence (every 8 days vs every 3 weeks). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Color Select Test ships an update every 3 weeks, Zen Power Exam every 8 days. The most recent releases landed on November 1, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | Color Select Test | Zen Power Exam |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (3 ratings)](https://appshunter.io/ios/app/color-select-test/id954163225/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Every 8 days** |
| Monetization | Free | — |
| Size | 30 MB | 40 MB |
| Requires iOS | **8.0** | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [TAKAHIRO AYA](https://appshunter.io/developer/495555314) | [Katsuya Kawase](https://appshunter.io/developer/1749728640) |

## What reviewers say

### Color Select Test

[App page](https://appshunter.io/ios/app/color-select-test/id954163225)

Test and measure your color perception and judgment speed. Tap the matching color as quickly as possible to clear levels. Offers varying difficulty settings to challenge your abilities.

**Highlights:** Color judgment ability measurement, Speed-based color matching, Multiple difficulty levels (Easy, Normal, Hard), Score tracking based on clear time, Simple tap interface

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Zen Power Exam

[App page](https://appshunter.io/ios/app/zen-power-exam/id6504720230)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Color Select Test free?

Color Select Test is free to download, with no in-app purchases.

### Is Zen Power Exam free?

Zen Power Exam is free to download, with no in-app purchases.

### Do Color Select Test or Zen Power Exam have ads?

Zen Power Exam shows ads; Color Select Test does not.

### Which is updated more often, Color Select Test or Zen Power Exam?

Color Select Test ships an update every 3 weeks, and Zen Power Exam every 8 days. Most recently, Color Select Test was updated on November 1, 2026 and Zen Power Exam on November 4, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*