# OpenAPI Viewer vs RESTful API Client

The clearest difference is in-app purchases: RESTful API Client at none against OpenAPI Viewer's 3. RESTful API Client also leads on iOS requirement (15.0 vs 18.1). On price, ads and device support there is nothing between them.

Both are free to download. OpenAPI Viewer sells 3 one-off in-app purchases. RESTful API Client asks for nothing beyond the download.

## The numbers

| Metric | OpenAPI Viewer | RESTful API Client |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 weeks | — |
| Size | 13 MB | 67 MB |
| Requires iOS | 18.1 | **15.0** |
| Devices | iPhone, iPad, Mac | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Victor Manuel Puga Ruiz](https://appshunter.io/developer/1648773908) | [Dieudonne Gwanmesia](https://appshunter.io/developer/1212068533) |

## What reviewers say

### OpenAPI Viewer

[App page](https://appshunter.io/ios/app/openapi-viewer/id6761346493)

**Features:** Vision Pro support

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Small Tip | $1.99 | one-time |
| Medium Tip | $4.99 | one-time |
| Large Tip | $9.99 | one-time |


### RESTful API Client

[App page](https://appshunter.io/ios/app/restful-api-client/id6790840911)

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

**In-app purchases:** none


## Frequently asked questions

### Is OpenAPI Viewer free?

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

### Is RESTful API Client free?

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

### Do OpenAPI Viewer or RESTful API Client have ads?

Neither OpenAPI Viewer nor RESTful API Client 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.*