# Optical illusion hypnosis vs Scrollaby

The clearest difference is rating: Optical illusion hypnosis at 4.2 against Scrollaby's 3.6. Optical illusion hypnosis also leads on ratings volume (955 vs 23) and review sentiment (55% vs 42%). Scrollaby's advantage is ads (none vs shown) and iOS requirement (13.0 vs 15.0). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Optical illusion hypnosis sells 4 in-app purchases, starting at $3.49 per month and Scrollaby sells 6 in-app purchases, starting at $4.99 per 7 days. Whichever you choose, the download price is not the number that matters.

Optical illusion hypnosis holds the better App Store score, 4.2 against 3.6. That said, the two scores are not equally well evidenced: Optical illusion hypnosis has 955 ratings behind it against 23, so its average is the more settled of the two. Written reviews point the same way: 55% of Optical illusion hypnosis's written reviews are positive against 42% of Scrollaby's.

Optical illusion hypnosis ships an update every 5 months, Scrollaby every 3 months. The most recent releases landed on October 13, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | Optical illusion hypnosis | Scrollaby |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.2 (955 ratings)](https://appshunter.io/ios/app/optical-illusion-hypnosis/id1198253298/reviews)** | [3.6 (23 ratings)](https://appshunter.io/ios/app/scrollaby/id1540353465/reviews) |
| Number of ratings | **955** | 23 |
| Positive reviews | **55.1% of reviews** | 41.7% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 months | **Every 3 months** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 97 MB | 20 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Astrologic Games LTDA](https://appshunter.io/developer/1164665798) | [Rockwell Ventures](https://appshunter.io/developer/1447164748) |

## What reviewers say

### Optical illusion hypnosis

[App page](https://appshunter.io/ios/app/optical-illusion-hypnosis/id1198253298)

Experience a unique blend of visual wonder and mental relaxation with mesmerizing optical illusions. This app offers a calming space to unwind, escape stress, and find creative inspiration through captivating visuals and meditative experiences.

**Highlights:** Mesmerizing visual illusions, Relaxation Mode with ambient music, Create and share custom illusions, Learn the science behind perception, Customizable experience with soundtracks and timers

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| VIP Access | $3.49 | per month |
| Remove Ads | $1.99 | one-time |
| Extreme FX Pack | $1.99 | one-time |
| Color FX Pack | $1.99 | one-time |

**What reviewers like**

- 🤩 Hypnotizing effects
- 🧠 Interesting illusions
- 👍 App works as intended
- 🤯 Mind-bending experiences

**What reviewers complain about**

- 🤯 Can cause headaches/dizziness
- 💰 Too many ads
- 🔴 Stuck on red screen
- 🤔 Unclear instructions

**Reported bugs**

- App crashes or gets stuck on red screen
- Ads don't load properly, preventing access to other levels
- Inconsistent performance across devices

**Requested features**

- Add more variety of illusions
- Reduce ads or offer ad-free version
- Improve performance on older devices
- Add color/visual customization options


### Scrollaby

[App page](https://appshunter.io/ios/app/scrollaby/id1540353465)

This app uses a familiar scrolling interface to deliver relaxing content like sounds, stories, and meditations designed to improve sleep quality. It incorporates scientifically proven techniques to help users unwind and prepare for rest, offering a fresh, randomized feed of new material weekly.

**Highlights:** 1000+ sleep sounds, stories, music, meditations, and visuals, Relaxing scrolling mechanic, HRV Breathing, CBT-I, Progressive Muscle Relaxation techniques, Randomized daily content feed, Favorite content saving, Sleep timer with automatic fadeout, HealthKit integration

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $4.99 | per 7 days |
| Weekly | $4.99 | per 7 days |
| Monthly | $12.99 | per month |
| Monthly | $12.99 | per month |
| Yearly | $49.99 | per year |
| Yearly | $49.99 | per year |


## Frequently asked questions

### Is Optical illusion hypnosis free?

Optical illusion hypnosis is free to download, with in-app purchases available.

### Is Scrollaby free?

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

### Which has better reviews, Optical illusion hypnosis or Scrollaby?

Optical illusion hypnosis is rated higher. Optical illusion hypnosis averages 4.2 out of 5 from 955 ratings, while Scrollaby averages 3.6 from 23 ratings.

### Do Optical illusion hypnosis or Scrollaby have ads?

Optical illusion hypnosis shows ads; Scrollaby does not.

### Which is updated more often, Optical illusion hypnosis or Scrollaby?

Optical illusion hypnosis ships an update every 5 months, and Scrollaby every 3 months. Most recently, Optical illusion hypnosis was updated on October 13, 2026 and Scrollaby on October 12, 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.*