# API Usage vs Diff Checker

The clearest difference is in-app purchases: API Usage at none against Diff Checker's 2. Diff Checker's advantage is iOS requirement (17.0 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. Diff Checker sells 2 in-app purchases, starting at $2.99 per 7 days. API Usage asks for nothing beyond the download.

## The numbers

| Metric | API Usage | Diff Checker |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 2 months |
| Size | 5 MB | 5 MB |
| Requires iOS | 26.0 | **17.0** |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Barolo AI](https://appshunter.io/developer/1896727788) | [Phuc Pham](https://appshunter.io/developer/1893081423) |

## 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


### Diff Checker

[App page](https://appshunter.io/ios/app/diff-checker-text-compare/id6772266827)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $2.99 | per 7 days |
| Yearly | $14.99 | per year |


## Frequently asked questions

### Is API Usage free?

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

### Is Diff Checker free?

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

### Do API Usage or Diff Checker have ads?

Neither API Usage nor Diff Checker 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.*