# API Usage vs Marshal Stack

The clearest difference is device support: Marshal Stack at 3 against API Usage's 1. Marshal Stack also leads on iOS requirement (17.0 vs 26.0). On price, ads and in-app purchases there is nothing between them.

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

## The numbers

| Metric | API Usage | Marshal Stack |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | — | Every 3 weeks |
| Size | 5 MB | 9 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | iPhone | **iPhone, iPad, Apple Watch** |
| Age rating | 4+ | 4+ |
| Developer | [Barolo AI](https://appshunter.io/developer/1896727788) | [Alexandr Degteari](https://appshunter.io/developer/1597066966) |

## What reviewers say

### API Usage

[App page](https://appshunter.io/ios/app/api-usage/id6770253168)

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

**In-app purchases:** none


### Marshal Stack

[App page](https://appshunter.io/ios/app/marshal-stack/id6801763798)

**Features:** macOS Compatibility, Apple Watch app, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is API Usage free?

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

### Is Marshal Stack free?

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

### Do API Usage or Marshal Stack have ads?

Neither API Usage nor Marshal Stack 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.*