# Eye Test 3000 vs 誰是臥底

The clearest difference is in-app purchases: Eye Test 3000 at none against 誰是臥底's 1. Eye Test 3000 also leads on ads (none vs shown) and iOS requirement (8.0 vs 15.0). 誰是臥底's advantage is update cadence (every 2 months vs every 18 months). On price and device support there is nothing between them.

Both are free to download. 誰是臥底 sells 1 in-app purchase, starting at $0.99 per month. Eye Test 3000 asks for nothing beyond the download.

Eye Test 3000 ships an update every 18 months, 誰是臥底 every 2 months. The most recent releases landed on October 26, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Eye Test 3000 | 誰是臥底 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (28 ratings)](https://appshunter.io/ios/app/eye-test-3000/id1116583550/reviews)** | — |
| Number of ratings | **28** | — |
| Positive reviews | 81.3% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 18 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 23 MB | 22 MB |
| Requires iOS | **8.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [祥祎 刘](https://appshunter.io/developer/1071522659) | [LiangYu Ko](https://appshunter.io/developer/1758015388) |

## What reviewers say

### Eye Test 3000

[App page](https://appshunter.io/ios/app/eye-test-3000/id1116583550)

This color puzzle game challenges your ability to distinguish subtle shade differences between cubes. Correctly identify the unique cube to earn points and advance through increasingly difficult levels. The game ends after three mistakes.

**Highlights:** Color shade differentiation, Point-based progression, Mistake limit for game over, Simple user interface, New game modes, Available on iPhone and iPad

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

**In-app purchases:** none


### 誰是臥底

[App page](https://appshunter.io/ios/app/id6553973564)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 找出臥底 Pro | $0.99 | per month |


## Frequently asked questions

### Is Eye Test 3000 free?

Eye Test 3000 is free to download, with no in-app purchases.

### Is 誰是臥底 free?

誰是臥底 is free to download, with in-app purchases available.

### Do Eye Test 3000 or 誰是臥底 have ads?

誰是臥底 shows ads; Eye Test 3000 does not.

### Which is updated more often, Eye Test 3000 or 誰是臥底?

Eye Test 3000 ships an update every 18 months, and 誰是臥底 every 2 months. Most recently, Eye Test 3000 was updated on October 26, 2026 and 誰是臥底 on October 24, 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.*