# OpEvol vs Visual Sandbox Simulation

The clearest difference is in-app purchases: Visual Sandbox Simulation at none against OpEvol's 1. Visual Sandbox Simulation also leads on iOS requirement (17.0 vs 26.0). OpEvol's advantage is device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. OpEvol sells 1 in-app purchase, starting at $6.99 per year. Visual Sandbox Simulation asks for nothing beyond the download.

## The numbers

| Metric | OpEvol | Visual Sandbox Simulation |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 27.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 22 months | — |
| Monetization | Paid | — |
| Size | 3 MB | 4 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | **iPhone, iPad, Apple TV** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Muddlegeist](https://appshunter.io/developer/701677888) | [Marvin Krueger](https://appshunter.io/developer/1152894281) |

## What reviewers say

### OpEvol

[App page](https://appshunter.io/ios/app/opevol/id788355019)

Experience a dynamic, ever-changing display of psychedelic visuals inspired by 1960s Op Art. This app creates animated fields of geometric colors and contrasts for passive viewing or interactive play.

**Highlights:** Animated geometric patterns, Op Art inspired visuals, Psychedelic color displays, Interactive visual play, Air Display compatibility

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OpEvol Annual Subscription | $6.99 | per year |


### Visual Sandbox Simulation

[App page](https://appshunter.io/ios/app/visual-sandbox-simulation/id6753861678)

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

**In-app purchases:** none


## Frequently asked questions

### Is OpEvol free?

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

### Is Visual Sandbox Simulation free?

Visual Sandbox Simulation is free to download, with no in-app purchases.

### Do OpEvol or Visual Sandbox Simulation have ads?

Neither OpEvol nor Visual Sandbox Simulation shows ads.

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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.*