# Hidden Differences vs Nebula Sort

The clearest difference is rating: Nebula Sort at 5.0 against Hidden Differences's 4.6. Nebula Sort also leads on update cadence (daily vs every 3 months). Hidden Differences's advantage is ratings volume (18K vs 1) and iOS requirement (13.0 vs 16.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Hidden Differences sells 5 in-app purchases, starting at $4.99 per 7 days and Nebula Sort sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Nebula Sort holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Hidden Differences has 18K ratings behind it against 1, so its average is the more settled of the two.

Hidden Differences ships an update every 3 months, Nebula Sort daily. The most recent releases landed on November 9, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Hidden Differences | Nebula Sort |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (18K ratings)](https://appshunter.io/ios/app/hidden-differencesspot-and-find/id1521738956/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/nebula-sort-space-puzzle/id6814579202/reviews)** |
| Number of ratings | **18K** | 1 |
| Positive reviews | 49.7% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 months | **Daily** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 423 MB | 52 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Azur Interactive Games Limited](https://appshunter.io/developer/1296347323) | [Regeora LLC](https://appshunter.io/developer/6812399085) |

## What reviewers say

### Hidden Differences

[App page](https://appshunter.io/ios/app/hidden-differencesspot-and-find/id1521738956)

Engage in a captivating photo hunt adventure to find subtle discrepancies between two seemingly identical images. Utilize keen observation skills to uncover hidden objects and advance through diverse, beautifully rendered locations. This game offers a relaxing yet challenging experience for puzzle enthusiasts.

**Highlights:** Find 5 differences between pictures, Explore 70+ stunning locations, Discover 3500+ unique items, Over 1400 photo hunt quests, Highly detailed graphics, Relaxing soundtrack

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Subscription | $4.99 | per 7 days |
| Find hidden objects with hints | $1.99 | one-time |
| No ads | $2.99 | one-time |
| 15 hints | $4.99 | one-time |
| 70 hints | $19.99 | one-time |

**What reviewers like**

- 🎨 Beautiful graphics
- 🧠 Challenging puzzles
- 🕰️ Relaxing gameplay
- 👍 Fun and entertaining

**What reviewers complain about**

- 💸 Excessive ads
- 🤑 Expensive subscription
- 🤯 Repetitive images
- 🤔 Lack of difficulty options

**Reported bugs**

- Crashes and freezes
- Issues with closing the app

**Requested features**

- Add difficulty levels
- Improve ad frequency and duration
- Provide a one-time purchase option


### Nebula Sort

[App page](https://appshunter.io/ios/app/nebula-sort-space-puzzle/id6814579202)

Guide capsules to matching ships in this cosmic color-sorting puzzle. Plan your moves carefully to create satisfying chain reactions and clear blocked routes. Explore 200 sectors with unique mechanics and earn stars and coins.

**Highlights:** Color sorting puzzle mechanics, Strategic capsule launching, Chain reaction gameplay, Nebula clouds and blocked routes, 200 puzzle sectors, Boosters and power-ups, In-game currency and leaderboards

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 100 Coins | $1.99 | one-time |
| Remove Ads | $3.99 | one-time |
| 300 Coins | $4.99 | one-time |
| 700 Coins | $9.99 | one-time |


## Frequently asked questions

### Is Hidden Differences free?

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

### Is Nebula Sort free?

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

### Which has better reviews, Hidden Differences or Nebula Sort?

Nebula Sort is rated higher. Hidden Differences averages 4.6 out of 5 from 18K ratings, while Nebula Sort averages 5.0 from 1 ratings.

### Do Hidden Differences or Nebula Sort have ads?

Both Hidden Differences and Nebula Sort show ads.

### Which is updated more often, Hidden Differences or Nebula Sort?

Hidden Differences ships an update every 3 months, and Nebula Sort daily. Most recently, Hidden Differences was updated on November 9, 2026 and Nebula Sort 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.*