# API Zen vs API Client

The clearest difference is update cadence: API Client at every 3 weeks against API Zen's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. API Zen sells 3 one-off in-app purchases and API Client sells 8 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

API Zen ships an update every 2 months, API Client every 3 weeks. The most recent releases landed on October 2, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | API Zen | API Client |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | — | Free with in-app purchases |
| Size | 7 MB | 41 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Jaseem Valiya Valappil](https://appshunter.io/developer/1714873997) | [Sahana A S](https://appshunter.io/developer/1800491118) |

## 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 |


### API Client

[App page](https://appshunter.io/ios/app/api-client-rest-http-tester/id6760490589)

Test REST APIs directly from your mobile device. Paste URLs, select methods, and view detailed responses including status codes, headers, and formatted JSON. Manage environments, save requests, and even import/export cURL commands.

**Highlights:** Paste URL and send requests, Smart JSON viewer with search, Environment management, Collections and history, cURL import and export, API monitoring, Test suites and assertions, API docs generator

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

**In-app purchases (8)**

| Purchase | Price | Billing |
| --- | --- | --- |
| RESTPilot Pro Monthly | $1.99 | per month |
| Pro Lifetime Limited Offer | $5.99 | one-time |
| Pro Lifetime Limited Offer | $7.99 | one-time |
| Pro Lifetime Limited Offer | $9.99 | one-time |
| Pro Lifetime Limited Offer | $11.99 | one-time |
| Pro Lifetime Limited Offer | $13.99 | one-time |
| Pro Lifetime Limited Offer | $15.99 | one-time |
| Ad Free experience | $19.99 | one-time |


## Frequently asked questions

### Is API Zen free?

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

### Is API Client free?

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

### Do API Zen or API Client have ads?

Neither API Zen nor API Client shows ads.

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

API Zen ships an update every 2 months, and API Client every 3 weeks. Most recently, API Zen was updated on October 2, 2026 and API Client 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.*