# Instabam vs Optical Illusions

The clearest difference is in-app purchases: Optical Illusions at none against Instabam's 1. Instabam's advantage is update cadence (fortnightly 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. Instabam sells 1 in-app purchase, starting at $2.99 per 7 days. Optical Illusions asks for nothing beyond the download.

Instabam ships an update fortnightly, Optical Illusions every 19 months. The most recent releases landed on October 5, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | Instabam | Optical Illusions |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Fortnightly** | Every 19 months |
| Monetization | — | Ad-supported |
| Size | 64 MB | 149 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 12+ |
| Developer | [Leonardos Thiesing](https://appshunter.io/developer/978872519) | [Rocketship Studios LLP](https://appshunter.io/developer/1456752660) |

## What reviewers say

### Instabam

[App page](https://appshunter.io/ios/app/instabam/id1391055355)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Instabam VIP | $2.99 | per 7 days |


### 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 Instabam free?

Instabam 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 Instabam or Optical Illusions have ads?

Both Instabam and Optical Illusions show ads.

### Which is updated more often, Instabam or Optical Illusions?

Instabam ships an update fortnightly, and Optical Illusions every 19 months. Most recently, Instabam was updated on October 5, 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.*