# Optical Illusions vs Clockwise!

The clearest difference is review sentiment: Clockwise! at 100% against Optical Illusions's 0%. Clockwise! also leads on update cadence (every 5 weeks vs every 19 months). Optical Illusions's advantage is in-app purchases (none vs 1). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Clockwise! sells 1 one-off in-app purchase. Optical Illusions asks for nothing beyond the download.

Optical Illusions ships an update every 19 months, Clockwise! every 5 weeks. The most recent releases landed on September 30, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Optical Illusions | Clockwise! |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (5 ratings)](https://appshunter.io/ios/app/clockwise/id6444231349/reviews)** |
| Number of ratings | — | **5** |
| Positive reviews | 0.0% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 19 months | **Every 5 weeks** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 149 MB | 20 MB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 4+ |
| Developer | [Rocketship Studios LLP](https://appshunter.io/developer/1456752660) | [Roy Sianez](https://appshunter.io/developer/1701276249) |

## What reviewers say

### Optical Illusions

[App page](https://appshunter.io/ios/app/optical-illusionsbrain-teaser/id1555733337)

Engage with a collection of mind-bending visual puzzles designed to challenge your perception and cognitive skills. Explore numerous optical illusions that will test your brain power and visual acuity in a fun and engaging way.

**Highlights:** Hundreds of optical illusion challenges, Spot trick questions and hidden traps, Minimal design for illusion clarity, Time-limited challenges, Suitable for all ages, IQ training and mind games

**In-app purchases:** none


### Clockwise!

[App page](https://appshunter.io/ios/app/clockwise/id6444231349)

A challenging and addictive puzzle game where players connect dots clockwise without crossing lines. It features auto-generated levels, unlockable themes, and a competitive challenge mode.

**Highlights:** Unlimited auto-generated levels, Challenge Mode with random starting dots, Unlockable colorful themes, Levels from 6 to 24 dots, Friend comparison and competition

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.39 | one-time |


## Frequently asked questions

### Is Optical Illusions free?

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

### Is Clockwise! free?

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

### Do Optical Illusions or Clockwise! have ads?

Both Optical Illusions and Clockwise! show ads.

### Which is updated more often, Optical Illusions or Clockwise!?

Optical Illusions ships an update every 19 months, and Clockwise! every 5 weeks. Most recently, Optical Illusions was updated on September 30, 2026 and Clockwise! on October 7, 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.*