# Find the Differences vs Knife Challenges

The clearest difference is rating: Find the Differences at 4.5 against Knife Challenges's 4.0. Find the Differences also leads on ratings volume (11 vs 1). Knife Challenges's advantage is update cadence (every 8 days vs every 2 months). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Find the Differences holds the better App Store score, 4.5 against 4.0. That said, the two scores are not equally well evidenced: Find the Differences has 11 ratings behind it against 1, so its average is the more settled of the two.

Find the Differences ships an update every 2 months, Knife Challenges every 8 days. The most recent releases landed on September 29, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | Find the Differences | Knife Challenges |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (11 ratings)](https://appshunter.io/ios/app/find-the-differences-classic/id1521113161/reviews)** | [4.0 (1 ratings)](https://appshunter.io/ios/app/knife-challenges/id1580914396/reviews) |
| Number of ratings | **11** | 1 |
| Positive reviews | 0.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | **Every 8 days** |
| Monetization | Ad-supported | Ad-supported |
| Size | 62 MB | 102 MB |
| Requires iOS | 11.0 | **10.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [毅 郑](https://appshunter.io/developer/514946161) | [跃峰 杨](https://appshunter.io/developer/1687429670) |

## What reviewers say

### Find the Differences

[App page](https://appshunter.io/ios/app/find-the-differences-classic/id1521113161)

Sharpen your observation skills with this challenging puzzle game. Find subtle differences between images without time pressure, earning stars for your performance. Utilize zoom and hints to aid your search in this free experience.

**Highlights:** Challenging levels, No time limit, Star rating system, 5 differences per level, Hint system, Zoom functionality, Completely free

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

**In-app purchases:** none


### Knife Challenges

[App page](https://appshunter.io/ios/app/knife-challenges/id1580914396)

A relaxing puzzle game that tests your eyesight and patience. Navigate challenges with precision to survive and compete against others. Unlock a crazy mode for an ultimate test.

**Highlights:** Eyesight testing puzzles, Patience challenges, Survival gameplay, Competitive play, Crazy mode

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Find the Differences free?

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

### Is Knife Challenges free?

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

### Which has better reviews, Find the Differences or Knife Challenges?

Find the Differences is rated higher. Find the Differences averages 4.5 out of 5 from 11 ratings, while Knife Challenges averages 4.0 from 1 ratings.

### Do Find the Differences or Knife Challenges have ads?

Both Find the Differences and Knife Challenges show ads.

### Which is updated more often, Find the Differences or Knife Challenges?

Find the Differences ships an update every 2 months, and Knife Challenges every 8 days. Most recently, Find the Differences was updated on September 29, 2026 and Knife Challenges on September 17, 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.*