# HappyOceanSort vs Difference Master

The clearest difference is review sentiment: Difference Master at 100% against HappyOceanSort's 25%. Difference Master also leads on rating (5.0 vs 3.5). HappyOceanSort's advantage is in-app purchases (none vs 7). On price, ratings volume, update cadence and ads there is nothing between them.

Both are free to download. Difference Master sells 7 one-off in-app purchases. HappyOceanSort asks for nothing beyond the download.

Difference Master holds the better App Store score, 5.0 against 3.5. Both are backed by a comparable volume of ratings — 10 and 25 respectively. Written reviews point the same way: 25% of HappyOceanSort's written reviews are positive against 100% of Difference Master's.

HappyOceanSort ships an update every 10 days, Difference Master every 2 weeks. Both last shipped on November 5, 2026.

## The numbers

| Metric | HappyOceanSort | Difference Master |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (10 ratings)](https://appshunter.io/ios/app/happyoceansort/id6755756610/reviews) | **[5.0 (25 ratings)](https://appshunter.io/ios/app/difference-master-find-them/id6757372624/reviews)** |
| Number of ratings | 10 | **25** |
| Positive reviews | 25.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 10 days** | Every 2 weeks |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 189 MB | 238 MB |
| Requires iOS | 13.0 | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [维 王](https://appshunter.io/developer/1549153457) | [Shinrays Games](https://appshunter.io/developer/1875245310) |

## What reviewers say

### HappyOceanSort

[App page](https://appshunter.io/ios/app/happyoceansort/id6755756610)

Engage in a relaxing underwater sorting game where you match three identical sea creatures and ocean items to clear them. Enjoy immersive sound effects and progress through hundreds of unique challenges in a serene, ocean-inspired environment.

**Highlights:** Strategic sea-item sorting, Match three identical items, Immersive underwater sound effects, Ocean journey progression, Hundreds of unique challenges, Casual and calming gameplay

**Features:** macOS Compatibility

**In-app purchases:** none


### Difference Master

[App page](https://appshunter.io/ios/app/difference-master-find-them/id6757372624)

Engage your visual acuity in a captivating 3D puzzle game. Explore intricately designed objects from all angles, find subtle differences, and enjoy a relaxing, timer-free experience. Perfect for unwinding and sharpening your observation skills.

**Highlights:** 360° object exploration, Hundreds of vibrant levels, Relaxing, timer-free gameplay, Intuitive tap controls, High-quality 3D models

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1000 Coins | $0.99 | one-time |
| 5000 Coins | $4.99 | one-time |
| Remove ADS | $5.99 | one-time |
| 10000 Coins | $9.99 | one-time |
| 25000 Coins | $24.99 | one-time |
| 50000 Coins | $49.99 | one-time |
| 100000 Coins | $99.99 | one-time |


## Frequently asked questions

### Is HappyOceanSort free?

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

### Is Difference Master free?

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

### Which has better reviews, HappyOceanSort or Difference Master?

Difference Master is rated higher. HappyOceanSort averages 3.5 out of 5 from 10 ratings, while Difference Master averages 5.0 from 25 ratings.

### Do HappyOceanSort or Difference Master have ads?

Both HappyOceanSort and Difference Master show ads.

### Which is updated more often, HappyOceanSort or Difference Master?

HappyOceanSort ships an update every 10 days, and Difference Master every 2 weeks. Most recently, HappyOceanSort was updated on November 5, 2026 and Difference Master on November 5, 2026.

---

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