# MQTT vs API

The clearest difference is update cadence: API at every 6 days against MQTT's every 11 months. API also leads on iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

MQTT ships an update every 11 months, API every 6 days. The most recent releases landed on September 12, 2026 and June 7, 2026 respectively.

## The numbers

| Metric | MQTT | API |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (1 ratings)](https://appshunter.io/ios/app/api-client-testing/id6740306610/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 11 months | **Every 6 days** |
| Monetization | — | Free |
| Size | 2 MB | 25 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Marco Gasser](https://appshunter.io/developer/1625108046) | [Hoang Son Dinh](https://appshunter.io/developer/1560967856) |

## What reviewers say

### MQTT

[App page](https://appshunter.io/ios/app/mqtt-client/id6443841176)

**Features:** macOS Compatibility

**In-app purchases:** none


### API

[App page](https://appshunter.io/ios/app/api-client-testing/id6740306610)

Send and analyze HTTP/HTTPS requests directly from your mobile device. Save requests to collections for easy reuse and view detailed response information, including headers and round trip time. Customize connection timeout settings for efficient testing.

**Highlights:** Send HTTP/HTTPS requests, Analyze REST API responses, Request history, Save requests to collections, Display response headers and code, Customize connection timeout

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is MQTT free?

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

### Is API free?

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

### Do MQTT or API have ads?

Neither MQTT nor API shows ads.

### Which is updated more often, MQTT or API?

MQTT ships an update every 11 months, and API every 6 days. Most recently, MQTT was updated on September 12, 2026 and API on June 7, 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.*