# Red Rolling Ball vs Sly Slime

The clearest difference is ads: Sly Slime at none against Red Rolling Ball's shown. Sly Slime also leads on update cadence (every 13 months vs every 33 months). Red Rolling Ball's advantage is iOS requirement (8.1 vs 13.0). On price, 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.

Red Rolling Ball ships an update every 33 months, Sly Slime every 13 months. The most recent releases landed on October 3, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Red Rolling Ball | Sly Slime |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 33 months | **Every 13 months** |
| Size | 66 MB | 41 MB |
| Requires iOS | **8.1** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ruslan Goncharenko](https://appshunter.io/developer/934710362) | [Dmitry Tsepilov](https://appshunter.io/developer/1770266660) |

## What reviewers say

### Red Rolling Ball

[App page](https://appshunter.io/ios/app/red-rolling-ball/id1152603825)

**Features:** macOS Compatibility

**In-app purchases:** none


### Sly Slime

[App page](https://appshunter.io/ios/app/sly-slime/id6736360689)

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

**In-app purchases:** none


## Frequently asked questions

### Is Red Rolling Ball free?

Red Rolling Ball is free to download, with no in-app purchases.

### Is Sly Slime free?

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

### Do Red Rolling Ball or Sly Slime have ads?

Red Rolling Ball shows ads; Sly Slime does not.

### Which is updated more often, Red Rolling Ball or Sly Slime?

Red Rolling Ball ships an update every 33 months, and Sly Slime every 13 months. Most recently, Red Rolling Ball was updated on October 3, 2026 and Sly Slime on October 7, 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.*