# Science Experiment School Lab vs Optical Illusions

The clearest difference is in-app purchases: Optical Illusions at none against Science Experiment School Lab's 4. Science Experiment School Lab's advantage is update cadence (every 5 months vs every 19 months) and iOS requirement (11.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. Science Experiment School Lab sells 4 one-off in-app purchases. Optical Illusions asks for nothing beyond the download.

Science Experiment School Lab ships an update every 5 months, Optical Illusions every 19 months. The most recent releases landed on October 6, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Science Experiment School Lab | Optical Illusions |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Every 5 months** | Every 19 months |
| Monetization | — | Ad-supported |
| Size | 22 MB | 149 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Rolling Panda](https://appshunter.io/developer/1291830680) | [Rocketship Studios LLP](https://appshunter.io/developer/1456752660) |

## What reviewers say

### Science Experiment School Lab

[App page](https://appshunter.io/ios/app/science-experiment-school-lab/id1403295264)

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |
| Pack of 10 | $0.99 | one-time |
| Pack of 30 | $1.99 | one-time |
| Pack of 100 | $2.99 | one-time |


### 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 Science Experiment School Lab free?

Science Experiment School Lab is free to download, with in-app purchases available.

### Is Optical Illusions free?

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

### Do Science Experiment School Lab or Optical Illusions have ads?

Both Science Experiment School Lab and Optical Illusions show ads.

### Which is updated more often, Science Experiment School Lab or Optical Illusions?

Science Experiment School Lab ships an update every 5 months, and Optical Illusions every 19 months. Most recently, Science Experiment School Lab was updated on October 6, 2026 and Optical Illusions on October 13, 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.*