# Systems vs Loops

The clearest difference is in-app purchases: Loops at none against Systems's 4. Loops also leads on iOS requirement (18.0 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. Systems sells 4 in-app purchases, starting at $3.99 per 7 days. Loops asks for nothing beyond the download.

## The numbers

| Metric | Systems | Loops |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 weeks | — |
| Size | 70 MB | 2 MB |
| Requires iOS | 26.0 | **18.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Adam Kovacs](https://appshunter.io/developer/1814096456) | [James Jackson](https://appshunter.io/developer/1480323398) |

## What reviewers say

### Systems

[App page](https://appshunter.io/ios/app/systems-checklists/id6746172413)

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Systems Pro Weekly | $3.99 | per 7 days |
| Systems Pro (1 Month) | $4.99 | per month |
| Systems Pro (1 Year) | $19.99 | per year |
| Systems Pro (Lifetime) | $49.99 | one-time |


### Loops

[App page](https://appshunter.io/ios/app/loops-think-through-anything/id6802796956)

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

**In-app purchases:** none


## Frequently asked questions

### Is Systems free?

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

### Is Loops free?

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

### Do Systems or Loops have ads?

Neither Systems nor Loops 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.*