# Brain Builder vs Mystery Hidden Object Games 9

The clearest difference is rating: Brain Builder at 3.7 against Mystery Hidden Object Games 9's 2.5. Brain Builder also leads on ads (none vs shown) and monetization model (free vs free with in-app purchases). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Brain Builder sells 1 one-off in-app purchase and Mystery Hidden Object Games 9 sells 10 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Brain Builder holds the better App Store score, 3.7 against 2.5. Both are backed by a comparable volume of ratings — 6 and 2 respectively.

## The numbers

| Metric | Brain Builder | Mystery Hidden Object Games 9 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.7 (6 ratings)](https://appshunter.io/ios/app/brain-builder/id963707691/reviews)** | [2.5 (2 ratings)](https://appshunter.io/ios/app/mystery-hidden-object-games-9/id1207364804/reviews) |
| Number of ratings | **6** | 2 |
| Positive reviews | 75.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | — | Every 82 months |
| Monetization | **Free** | Free with in-app purchases |
| Size | 25 MB | 48 MB |
| Requires iOS | **5.1.1** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Denis Sokolov](https://appshunter.io/developer/1161350207) | [Hiren Patel](https://appshunter.io/developer/914022084) |

## What reviewers say

### Brain Builder

[App page](https://appshunter.io/ios/app/brain-builder/id963707691)

Engage in a variety of brain-training challenges designed to enhance memory, logic, speed, concentration, and reaction time. Track your progress through detailed statistics and compete with others on the leaderboards. Consistent daily training can lead to significant improvements.

**Highlights:** 16 brain training tests, Memory challenges, Logic puzzles, Speed and reaction tests, Concentration exercises, Math problems, Results tracking, Leaderboard competition

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Disable Ads | $0.99 | one-time |


### Mystery Hidden Object Games 9

[App page](https://appshunter.io/ios/app/mystery-hidden-object-games-9/id1207364804)

Sharpen your observation skills by finding hidden objects in challenging scenes. Utilize hints and a magnifier to aid your search. Compete with friends and share your scores on social media.

**Highlights:** Find hidden objects in scenes, Free hints available, Zoom function for detailed searching, Score and time penalties for wrong touches, Game Center integration for challenges, Social media sharing

**Features:** macOS Compatibility

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| buy pack-1 | $0.99 | one-time |
| buy pack-2 | $0.99 | one-time |
| remove Ads | $0.99 | one-time |
| buy magnifier | $0.99 | one-time |
| buy 10 hints | $0.99 | one-time |
| buy 30 hints | $1.99 | one-time |
| Full Version | $2.99 | one-time |
| buy 50 hints | $2.99 | one-time |
| buy 100 hints | $3.99 | one-time |
| buy 200 hints | $4.99 | one-time |


## Frequently asked questions

### Is Brain Builder free?

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

### Is Mystery Hidden Object Games 9 free?

Mystery Hidden Object Games 9 is free to download, with in-app purchases available.

### Which has better reviews, Brain Builder or Mystery Hidden Object Games 9?

Brain Builder is rated higher. Brain Builder averages 3.7 out of 5 from 6 ratings, while Mystery Hidden Object Games 9 averages 2.5 from 2 ratings.

### Do Brain Builder or Mystery Hidden Object Games 9 have ads?

Mystery Hidden Object Games 9 shows ads; Brain Builder does not.

---

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