MQTT Checker vs SynRTK
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
MQTT Checker
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MQTT Checker is an amazingly simple application that quickly checks MQTT connections. This app helps users swiftly verify their ability to connect to MQTT servers. Users can easily input essential information such as ServerUrl or IP and ServerPort, and optionally configure ClientID, Broker Name, Topic, and Message. Key Features: Swift MQTT Server Connection Verification: MQTT Checker swiftly confirms the ability to connect to MQTT servers by allowing users to input ServerUrl or IP and ServerPort through a user-friendly interface. Additional Configuration Options: Optionally set ClientID, Broker Name, Topic, and Message to tailor MQTT connection tests to your preferences. Concise Notifications: Upon successful connection to the MQTT server, clear and concise notifications inform users. Error Messages on Failure: In case of failed MQTT server connections, display error messages to quickly identify issues.
SynRTK
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GNSS RTK, Precise positioning service with RTK devices of SYNEREX, Inc. * Setting options Broadcasts connection status to NTRIP server via USB or Bluetooth. Broadcasts location information obtained by receiving satellite signals. Connects with existing connection information when running the app. Hides the SynRTK app with Back when connected to NTRIP. Shows location information. Shows NMEA data log. * NTRIP Server Configuration You can use the NTRIP Account built into the SynRTK terminal or use an external NTRIP Account * Satellite screen - Satellite signal strength/position display It shows followings: - Number of satellites used - PDOP (Position dilution of precision) - HDOP (Horizontal dilution of precision) - VDOP (Vertical dilution of precision)
Screenshots
Verdict
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.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
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.
| Parameter | MQTT Checker | SynRTK |
|---|---|---|
| Price | Free | Free |
| Update frequency | Monthly | Weekly โ better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad, iPod โ better |
| Requires iOS | 12.0 โ better | 13.0 |
| Further details โ not scored | ||
| Size | 38 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | DreamNexus | SYNEREX |
In-app purchases
MQTT Checker
No in-app purchases
SynRTK
No in-app purchases
Questions
Is MQTT Checker free?
Is SynRTK free?
Do MQTT Checker or SynRTK have ads?
Which is updated more often, MQTT Checker or SynRTK?
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