# RequestLab vs OpenAPI Viewer

The clearest difference is in-app purchases: RequestLab at none against OpenAPI Viewer's 3. On price, update cadence, ads and device support there is nothing between them.

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

Both ship on a similar rhythm, roughly every 3 weeks. Both last shipped on October 25, 2026.

## The numbers

| Metric | RequestLab | OpenAPI Viewer |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | Every 3 weeks |
| Size | 18 MB | 15 MB |
| Requires iOS | **17.0** | 18.1 |
| Devices | iPhone, iPad, Vision Pro | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [Martin Albrecht](https://appshunter.io/developer/1479205686) | [Victor Manuel Puga Ruiz](https://appshunter.io/developer/1648773908) |

## What reviewers say

### RequestLab

[App page](https://appshunter.io/ios/app/requestlab/id6477221079)

**Features:** macOS Compatibility

**In-app purchases:** none


### 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 |


## Frequently asked questions

### Is RequestLab free?

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

### Is OpenAPI Viewer free?

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

### Do RequestLab or OpenAPI Viewer have ads?

Neither RequestLab nor OpenAPI Viewer shows ads.

### Which is updated more often, RequestLab or OpenAPI Viewer?

RequestLab ships an update every 3 weeks, and OpenAPI Viewer every 3 weeks. Most recently, RequestLab was updated on October 25, 2026 and OpenAPI Viewer on October 25, 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.*