# Fun Differences vs Stack Snap

The clearest difference is update cadence: Stack Snap at every 2 days against Fun Differences's fortnightly. Stack Snap also leads on iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

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

Fun Differences ships an update fortnightly, Stack Snap every 2 days. The most recent releases landed on October 1, 2026 and September 16, 2026 respectively.

## The numbers

| Metric | Fun Differences | Stack Snap |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.8 (15K ratings)](https://appshunter.io/ios/app/fun-differences-find-and-spot/id6476556796/reviews)** | — |
| Number of ratings | **15K** | — |
| Positive reviews | 63.5% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Fortnightly | **Every 2 days** |
| Monetization | Free with in-app purchases | — |
| Size | 390 MB | 23 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Topsmart Mobile Ltd.](https://appshunter.io/developer/1679762187) | [YDALIR Systems](https://appshunter.io/developer/1591731066) |

## What reviewers say

### Fun Differences

[App page](https://appshunter.io/ios/app/fun-differences-find-and-spot/id6476556796)

Engage in a captivating puzzle game that sharpens your observation skills by spotting subtle differences between stunning paired images. This brain-training experience offers a relaxing yet challenging way to improve attention to detail and concentration.

**Highlights:** Thousands of high-quality images, No time pressure, Zoom functionality, Progressive difficulty, Hint system, Continuous content updates

**In-app purchases:** none

**What reviewers like**

- 🎨 Fun and relaxing game
- 🧠 Keeps mind active
- 👍 Enjoyable and entertaining
- 🎶 Calming background music

**What reviewers complain about**

- 💰 Too many ads
- ⏱️ Ads interrupt gameplay too frequently
- 🙄 Ads are too long
- 🤔 Lack of option to remove ads

**Reported bugs**

- Some differences are too subtle to click
- App opens unwanted pages/scans device

**Requested features**

- Paid ad-free version
- Increase difficulty as levels progress
- More varied puzzle types


### Stack Snap

[App page](https://appshunter.io/ios/app/stack-snap/id6762198072)

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

**In-app purchases:** none


## Frequently asked questions

### Is Fun Differences free?

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

### Is Stack Snap free?

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

### Do Fun Differences or Stack Snap have ads?

Both Fun Differences and Stack Snap show ads.

### Which is updated more often, Fun Differences or Stack Snap?

Fun Differences ships an update fortnightly, and Stack Snap every 2 days. Most recently, Fun Differences was updated on October 1, 2026 and Stack Snap on September 16, 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.*