# SquarO vs Slitherlink

The clearest difference is in-app purchases: SquarO at none against Slitherlink's 1. SquarO also leads on update cadence (every 10 days vs monthly). Slitherlink's advantage is iOS requirement (15.6 vs 17.0). On price, ads and device support there is nothing between them.

Both are free to download. Slitherlink sells 1 one-off in-app purchase. SquarO asks for nothing beyond the download.

SquarO ships an update every 10 days, Slitherlink monthly. The most recent releases landed on October 25, 2026 and October 20, 2026 respectively.

## The numbers

| Metric | SquarO | Slitherlink |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 10 days** | Monthly |
| Size | 26 MB | 73 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Paul-Antoine Ouazana](https://appshunter.io/developer/1850808641) | [Huy Huynh](https://appshunter.io/developer/1815003126) |

## What reviewers say

### SquarO

[App page](https://appshunter.io/ios/app/squaro/id6754895641)

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

**In-app purchases:** none


### Slitherlink

[App page](https://appshunter.io/ios/app/slitherlink-fences-and-loop/id6759961545)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $4.99 | one-time |


## Frequently asked questions

### Is SquarO free?

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

### Is Slitherlink free?

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

### Do SquarO or Slitherlink have ads?

Both SquarO and Slitherlink show ads.

### Which is updated more often, SquarO or Slitherlink?

SquarO ships an update every 10 days, and Slitherlink monthly. Most recently, SquarO was updated on October 25, 2026 and Slitherlink on October 20, 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.*