# NineGaps vs Booeys

The clearest difference is monetization model: Booeys at free against NineGaps's paid. Booeys also leads on update cadence (every 9 months vs every 26 months). NineGaps's advantage is review sentiment (88% vs 75%) and iOS requirement (10.3 vs 12.0). On price, rating, ratings volume and ads there is nothing between them.

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

NineGaps holds the better App Store score, 4.1 against 3.9. Both are backed by a comparable volume of ratings — 11 and 16 respectively. Written reviews point the same way: 88% of NineGaps's written reviews are positive against 75% of Booeys's.

NineGaps ships an update every 26 months, Booeys every 9 months. The most recent releases landed on October 4, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | NineGaps | Booeys |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.1 (11 ratings)](https://appshunter.io/ios/app/ninegaps/id317223443/reviews)** | [3.9 (16 ratings)](https://appshunter.io/ios/app/booeys-a-ghosts-code/id1145825212/reviews) |
| Number of ratings | 11 | **16** |
| Positive reviews | **88.1% of reviews** | 75.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 26 months | **Every 9 months** |
| Monetization | Paid | **Free** |
| Size | 72 MB | 222 MB |
| Requires iOS | **10.3** | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 9+ |
| Developer | [Quadion Technologies LLC](https://appshunter.io/developer/317223446) | [Simcoach Games](https://appshunter.io/developer/1682126328) |

## What reviewers say

### NineGaps

[App page](https://appshunter.io/ios/app/ninegaps/id317223443)

This is a challenging puzzle game where you place numbers 1-9 into gaps, matching operations. It offers a unique twist on number puzzles with multiple difficulty levels and endless replayability.

**Highlights:** Unique puzzle gameplay, Cute graphics, 5 difficulty levels, Unlimited puzzles, Leaderboards and achievements, GameCenter integration

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 🧠 Excellent brain training and mental math improvement
- 🎮 Simple yet challenging gameplay mechanics
- 🎨 Clean, polished, and attractive visual design
- ⏱️ Quick games perfect for short waiting periods
- 👨‍👩‍👧‍👦 Suitable for multiple age groups and skill levels

**What reviewers complain about**

- 🔊 Loud sound effects that cannot be controlled properly
- 💾 No game saving feature when closing app
- 🧮 Does not follow proper order of operations (PEMDAS)
- 🔴 Occasional crashes or app not opening
- 🎮 Limited replay value after extended play

**Reported bugs**

- Sound effects stop working intermittently
- App crashes or fails to open on launch
- Sound volume settings not saving between sessions
- OpenFeint achievements not awarding properly
- Mathematical calculation errors in some puzzles

**Requested features**

- Solution/reveal button to show answers when stuck
- Hint system for difficult puzzles
- Game auto-save functionality
- Persistent sound settings across sessions
- Global leaderboards for competition


### Booeys

[App page](https://appshunter.io/ios/app/booeys-a-ghosts-code/id1145825212)

Guide lost souls through challenging puzzle realms using helpful ghosts. Solve intricate puzzles with increasing difficulty across diverse dimensions, mastering new tools and strategies. This game also offers insights into real-world career skills.

**Highlights:** 30+ challenging puzzles, Beautiful, dark visual style, Master new tools, Multiple level completion methods, Real-world skill tips, Certificate of achievement

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

**In-app purchases:** none


## Frequently asked questions

### Is NineGaps free?

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

### Is Booeys free?

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

### Which has better reviews, NineGaps or Booeys?

NineGaps is rated higher. NineGaps averages 4.1 out of 5 from 11 ratings, while Booeys averages 3.9 from 16 ratings.

### Do NineGaps or Booeys have ads?

Neither NineGaps nor Booeys shows ads.

### Which is updated more often, NineGaps or Booeys?

NineGaps ships an update every 26 months, and Booeys every 9 months. Most recently, NineGaps was updated on October 4, 2026 and Booeys on September 27, 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.*