# Circle Smiles vs Sly Slime

The clearest difference is ads: Sly Slime at none against Circle Smiles's shown. Circle Smiles's advantage is update cadence (every 2 months vs every 13 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Circle Smiles ships an update every 2 months, Sly Slime every 13 months. The most recent releases landed on October 24, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Circle Smiles | Sly Slime |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (14 ratings)](https://appshunter.io/ios/app/circle-smiles/id1152496724/reviews)** | — |
| Number of ratings | **14** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 2 months** | Every 13 months |
| Monetization | Ad-supported | — |
| Size | 93 MB | 41 MB |
| Requires iOS | 14.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Milen Kirkov](https://appshunter.io/developer/1003066971) | [Dmitry Tsepilov](https://appshunter.io/developer/1770266660) |

## What reviewers say

### Circle Smiles

[App page](https://appshunter.io/ios/app/circle-smiles/id1152496724)

Engage your logic in endless physics-based challenges. Remove shapes in the right order to make balls roll and bump, collecting coins to unlock new levels. Enjoy a relaxing, brain-training experience with no time limits.

**Highlights:** Physics-based ball drop puzzles, Logical shape removal, Coin collection for level unlocks, No time limit for relaxed play, 80+ unique puzzles, Realistic physics and gravity

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

**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 Circle Smiles free?

Circle Smiles 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 Circle Smiles or Sly Slime have ads?

Circle Smiles shows ads; Sly Slime does not.

### Which is updated more often, Circle Smiles or Sly Slime?

Circle Smiles ships an update every 2 months, and Sly Slime every 13 months. Most recently, Circle Smiles was updated on October 24, 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.*