# Cago Brain vs Trace

The clearest difference is in-app purchases: Cago Brain at none against Trace's 2. Cago Brain also leads on iOS requirement (13.0 vs 15.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Trace sells 2 one-off in-app purchases. Cago Brain asks for nothing beyond the download.

Cago Brain ships an update every 5 days, Trace every 4 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | Cago Brain | Trace |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (15 ratings)](https://appshunter.io/ios/app/cago-brain/id6744351746/reviews)** | — |
| Number of ratings | **15** | — |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 5 days | **Every 4 days** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 110 MB | 129 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Van Ninh Nguyen](https://appshunter.io/developer/1782275787) | [Hajin Cho](https://appshunter.io/developer/6796362854) |

## What reviewers say

### Cago Brain

[App page](https://appshunter.io/ios/app/cago-brain/id6744351746)

A classic puzzle game challenges players to match and connect identical tiles using strategic line connections. Progress through increasingly difficult levels with vibrant visuals and unlock new challenges by completing levels quickly.

**Highlights:** Match and connect identical tiles, Use up to three straight lines, Vibrant and diverse visuals, Series of thrilling new levels, Unlock tougher challenges, Fast-paced gameplay

**Features:** macOS Compatibility

**In-app purchases:** none


### Trace

[App page](https://appshunter.io/ios/app/trace-one-line-puzzle/id6796362852)

Connect every square on the board with a single, unbroken line. This minimalist puzzle game offers a simple yet challenging experience that tests your strategic thinking. Compete globally for the best times and enjoy quick, satisfying gameplay.

**Highlights:** Connect all squares with one line, Minimalist puzzle design, Increasing difficulty and strategy, Global leaderboards, Play anytime, anywhere, Hint system available

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| hint_erase_Bundle | $0.99 | one-time |
| REMOVE_ADS | $4.99 | one-time |


## Frequently asked questions

### Is Cago Brain free?

Cago Brain is free to download, with no in-app purchases.

### Is Trace free?

Trace is free to download, with in-app purchases available.

### Do Cago Brain or Trace have ads?

Both Cago Brain and Trace show ads.

### Which is updated more often, Cago Brain or Trace?

Cago Brain ships an update every 5 days, and Trace every 4 days. Most recently, Cago Brain was updated on October 24, 2026 and Trace 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.*