# NineGaps vs Number Bubble Shooter.

The clearest difference is rating: Number Bubble Shooter. at 4.5 against NineGaps's 4.0. Number Bubble Shooter. also leads on update cadence (every 4 months vs every 26 months) and ratings volume (1.9K vs 10). NineGaps's advantage is in-app purchases (none vs 8) and ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. Number Bubble Shooter. sells 8 one-off in-app purchases. NineGaps asks for nothing beyond the download.

Number Bubble Shooter. holds the better App Store score, 4.5 against 4.0. That said, the two scores are not equally well evidenced: Number Bubble Shooter. has 1.9K ratings behind it against 10, so its average is the more settled of the two. Written reviews complicate that: 88% of NineGaps's written reviews are positive against 63% of Number Bubble Shooter.'s, so the app with the better star average is not the one people write more warmly about.

NineGaps ships an update every 26 months, Number Bubble Shooter. every 4 months. The most recent releases landed on October 31, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | NineGaps | Number Bubble Shooter. |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (10 ratings)](https://appshunter.io/ios/app/ninegaps/id317223443/reviews) | **[4.5 (1.9K ratings)](https://appshunter.io/ios/app/number-bubble-shooter/id1544382420/reviews)** |
| Number of ratings | 10 | **1.9K** |
| Positive reviews | **88.1% of reviews** | 62.7% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 26 months | **Every 4 months** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 72 MB | 120 MB |
| Requires iOS | **10.3** | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Quadion Technologies LLC](https://appshunter.io/developer/317223446) | [Shanghai Diguo Network Technology Co., Ltd.](https://appshunter.io/developer/1493491443) |

## 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


### Number Bubble Shooter.

[App page](https://appshunter.io/ios/app/number-bubble-shooter/id1544382420)

An addictive and relaxing bubble game where you tap to shoot numbered bubbles. Merge bubbles with the same number to create larger numbers and challenge your highest score. Enjoy a pressure-free experience with beautiful backgrounds and various ball materials.

**Highlights:** Shoot numbered bubbles, Merge same numbers, Break highest score, No time limit, Beautiful backgrounds, Multiple ball materials

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 2000 coins | $1.99 | one-time |
| FUN PACK | $2.99 | one-time |
| Remove Ads | $4.99 | one-time |
| 6300 coins | $5.99 | one-time |
| 11000 coins | $9.99 | one-time |
| 23100 coins | $19.99 | one-time |
| 49000 coins | $39.99 | one-time |
| 85000 coins | $59.99 | one-time |

**What reviewers like**

- 👍 Fun and addictive game
- 💡 Unique combination of 2048 and bubble shooter
- 🧠 Challenging and makes you think

**What reviewers complain about**

- 🚨 Too many ads interrupting gameplay
- 🔒 Inability to disable ads even after paying
- 🐛 Freezing and crashing issues
- 🔍 Lack of visibility for score/coin count

**Reported bugs**

- Game progress/high score loss
- Inability to exit full-screen ads
- Inconsistent gameplay mechanics

**Requested features**

- Option to pay for ad-free version
- Improved UI/UX for score and coin display
- More level variety and progression


## Frequently asked questions

### Is NineGaps free?

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

### Is Number Bubble Shooter. free?

Number Bubble Shooter. is free to download, with in-app purchases available.

### Which has better reviews, NineGaps or Number Bubble Shooter.?

Number Bubble Shooter. is rated higher. NineGaps averages 4.0 out of 5 from 10 ratings, while Number Bubble Shooter. averages 4.5 from 1.9K ratings.

### Do NineGaps or Number Bubble Shooter. have ads?

Number Bubble Shooter. shows ads; NineGaps does not.

### Which is updated more often, NineGaps or Number Bubble Shooter.?

NineGaps ships an update every 26 months, and Number Bubble Shooter. every 4 months. Most recently, NineGaps was updated on October 31, 2026 and Number Bubble Shooter. on November 3, 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.*