# API Zen vs RequestLab

The clearest difference is in-app purchases: RequestLab at none against API Zen's 3. RequestLab also leads on update cadence (every 3 weeks vs every 2 months). API Zen's advantage is iOS requirement (13.0 vs 16.0). On price, ads and device support there is nothing between them.

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

API Zen ships an update every 2 months, RequestLab every 3 weeks. The most recent releases landed on September 15, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | API Zen | RequestLab |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Size | 7 MB | 16 MB |
| Requires iOS | **13.0** | 16.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Vision Pro |
| Age rating | 4+ | 4+ |
| Developer | [Jaseem Valiya Valappil](https://appshunter.io/developer/1714873997) | [Martin Albrecht](https://appshunter.io/developer/1479205686) |

## What reviewers say

### API Zen

[App page](https://appshunter.io/ios/app/api-zen/id6471152115)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Thanks | $3.99 | one-time |
| Thank you | $5.99 | one-time |
| Thank you very much | $7.99 | one-time |


### RequestLab

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is API Zen free?

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

### Is RequestLab free?

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

### Do API Zen or RequestLab have ads?

Neither API Zen nor RequestLab shows ads.

### Which is updated more often, API Zen or RequestLab?

API Zen ships an update every 2 months, and RequestLab every 3 weeks. Most recently, API Zen was updated on September 15, 2026 and RequestLab on September 22, 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.*