# MQTT Checker vs SynRTK

The clearest difference is update cadence: SynRTK at weekly against MQTT Checker's monthly. 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 Checker ships an update monthly, SynRTK weekly. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | MQTT Checker | SynRTK |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Monthly | **Weekly** |
| Size | 38 MB | 28 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [DreamNexus](https://appshunter.io/developer/1602135238) | [SYNEREX](https://appshunter.io/developer/1794696313) |

## What reviewers say

### MQTT Checker

[App page](https://appshunter.io/ios/app/mqtt-checker-mqtt-connection/id6450397057)

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

**In-app purchases:** none


### SynRTK

[App page](https://appshunter.io/ios/app/synrtk/id6741556561)

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

**In-app purchases:** none


## Frequently asked questions

### Is MQTT Checker free?

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

### Is SynRTK free?

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

### Do MQTT Checker or SynRTK have ads?

Neither MQTT Checker nor SynRTK shows ads.

### Which is updated more often, MQTT Checker or SynRTK?

MQTT Checker ships an update monthly, and SynRTK weekly. Most recently, MQTT Checker was updated on November 3, 2026 and SynRTK on October 30, 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.*