# HYPNO. vs Optical Illusions

The clearest difference is ads: HYPNO. at none against Optical Illusions's shown. HYPNO. also leads on monetization model (free vs ad-supported) and iOS requirement (8.2 vs 15.0). On price, review sentiment, 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.

## The numbers

| Metric | HYPNO. | Optical Illusions |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.6 (7 ratings)](https://appshunter.io/ios/app/hypno/id993465971/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | — | Every 19 months |
| Monetization | **Free** | Ad-supported |
| Size | 15 MB | 149 MB |
| Requires iOS | **8.2** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [John Avatar](https://appshunter.io/developer/375690746) | [Rocketship Studios LLP](https://appshunter.io/developer/1456752660) |

## What reviewers say

### HYPNO.

[App page](https://appshunter.io/ios/app/hypno/id993465971)

This app displays a swirling animation on your Apple Watch, designed for entertainment. While it won't hypnotize you, it offers a visually engaging experience with the time integrated into the animation.

**Highlights:** Animated watch face, Swirling animation, Time display, Apple Watch compatibility

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is HYPNO. free?

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

### Is Optical Illusions free?

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

### Do HYPNO. or Optical Illusions have ads?

Optical Illusions shows ads; HYPNO. does not.

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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.*