# Define vs 99 Numbers

The clearest difference is in-app purchases: 99 Numbers at none against Define's 10. 99 Numbers also leads on ads (none vs shown). Define's advantage is update cadence (every 3 weeks vs every 2 months) and iOS requirement (13.0 vs 15.0). On price and device support there is nothing between them.

Both are free to download. Define sells 10 one-off in-app purchases. 99 Numbers asks for nothing beyond the download.

Define ships an update every 3 weeks, 99 Numbers every 2 months. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Define | 99 Numbers |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (29K ratings)](https://appshunter.io/ios/app/define-find-difference-games/id1481463413/reviews)** | — |
| Number of ratings | **29K** | — |
| Positive reviews | 27.5% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 257 MB | 29 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Cleverside](https://appshunter.io/developer/1578703765) | [Ngo Thanh Trung](https://appshunter.io/developer/6809459943) |

## What reviewers say

### Define

[App page](https://appshunter.io/ios/app/define-find-difference-games/id1481463413)

Engage your mind with a relaxing puzzle game where you find subtle differences between two nearly identical images. Sharpen your observation skills and focus while enjoying beautifully crafted levels. It's a fun and challenging experience for individuals and families alike.

**Highlights:** Over 8000 unique levels, Helpful hints system, Zoom functionality, Daily levels and challenges, Bonus collection and achievements, Relaxing gameplay

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

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 100 bonus coins! | $1.19 | one-time |
| 5 hints + 5 freezes | $1.99 | one-time |
| 15 hints + 15 freezes | $3.99 | one-time |
| Remove ads | $3.99 | one-time |
| 500 coins | $4.99 | one-time |
| Differences Super Pack | $7.99 | one-time |
| 1000 coins | $9.49 | one-time |
| Timer off pack | $12.99 | one-time |
| Super pack | $12.99 | one-time |
| 10000 bonus coins | $79.99 | one-time |

**What reviewers like**

- 🚀 Challenging
- 👍 Rewarding to find differences
- 🚀 Great entertainment
- 👍 Good game

**What reviewers complain about**

- 🐛 Not working/loading issues
- 🐛 Freezing/crashing issues
- 🔍 Differences too subtle to see
- 🔍 Timer too short
- 📺 Too many ads

**Reported bugs**

- Levels not working after a certain point
- Differences not registering correctly
- Game freezing/crashing

**Requested features**

- Add option to turn off timer
- Add more levels
- Fix bugs and loading issues


### 99 Numbers

[App page](https://appshunter.io/ios/app/99-numbers/id6809459941)

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

**In-app purchases:** none


## Frequently asked questions

### Is Define free?

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

### Is 99 Numbers free?

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

### Do Define or 99 Numbers have ads?

Define shows ads; 99 Numbers does not.

### Which is updated more often, Define or 99 Numbers?

Define ships an update every 3 weeks, and 99 Numbers every 2 months. Most recently, Define was updated on November 7, 2026 and 99 Numbers on October 31, 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.*