Comparison

TCP ModBus vs MQTTAnalyzer

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

TCP ModBus

Features
Read full description

TCP Modbus - the application created for testing and debugging of systems supporting TCP ModBus protocol. Simulation sensors, send control commands, read data registers, and others. - Operation as a server or a client; - supports two modes slave and master; - reading and writing data register; - storage of the last session of the data; - storage connection settings; - support decrypting of incoming message.

About

MQTTAnalyzer

Monitor and debug MQTT brokers on your Apple devices. Visualize data with hierarchical views, JSON highlighting, and charts. Publish messages, manage multiple brokers, and sync settings across devices. Free and open source.

Highlights
  • MQTT 3.1.1 and 5.0 support
  • JSON highlighting and pretty-printing
  • Time series charts for numeric values
  • Connect to multiple brokers
  • Full-text search
  • Publish messages
  • iCloud sync
Features
Read full description

Monitor and debug your MQTT broker from iPhone, iPad, or Mac. MQTTAnalyzer is the essential tool for smart home enthusiasts, IoT developers, and anyone working with MQTT-based systems. Free, open source, and no ads. CONNECT WITH CONFIDENCE • MQTT 3.1.1 and MQTT 5.0 support • MQTT and WebSocket connections • SSL/TLS with ALPN and server CA certificate validation • Username/password and client certificate authentication • Support for self-signed certificates • Predefined settings for AWS IoT • Connection diagnostics to identify issues quickly VISUALIZE YOUR DATA • Hierarchical topic tree view • JSON highlighting and pretty-printing • Time series charts for numeric values • ANSI color code rendering • Image viewer with pinch-to-zoom (PNG, JPEG, GIF, WebP, and more) • Hex viewer for binary payloads STAY ORGANIZED • Connect to multiple brokers simultaneously • Subscribe to multiple topics per broker • Full-text search across topics and messages • Unread message indicators • Statistics panel with message counts • Large payload support (10MB+) with export PUBLISH AND CONTROL • Publish messages with QoS and retain flag • JSON message builder with form interface • Delete retained messages from broker • Siri shortcuts for quick actions SYNC ACROSS DEVICES • iCloud sync for settings and certificates • Native experience on iPhone, iPad, and Mac Have feedback or feature requests? Visit our GitHub page — MQTTAnalyzer is open source and community-driven.

Screenshots

TCP ModBus4 screens
MQTTAnalyzer4 screens

Verdict

The call

The clearest difference is iOS requirement: TCP ModBus at 8.0 against MQTTAnalyzer's 18.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

TCP ModBus ships an update every 4 days, MQTTAnalyzer every 5 days. The most recent releases landed on October 13, 2026 and October 16, 2026 respectively.

Scorecard1 real difference · 9 level
TCP ModBus versus MQTTAnalyzer: the parameters behind the verdict, then further details
ParameterTCP ModBusMQTTAnalyzer
PriceFreeFree
Rating—4.5 (23 ratings) — better
Positive reviews—80.9% of reviews
Number of ratings—23 — better
Update frequencyEvery 4 days — betterEvery 5 days
AdsNoNo
In-app purchasesNoNo
Monetization—Free
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS8.0 — better18.0
Further details — not scored
Size1 MB12 MB
Age rating4+4+
DeveloperТПУPhilipp Arndt

In-app purchases

None

TCP ModBus

No in-app purchases

None

MQTTAnalyzer

No in-app purchases

Questions

Is TCP ModBus free?
TCP ModBus is free to download, with no in-app purchases.
Is MQTTAnalyzer free?
MQTTAnalyzer is free to download, with no in-app purchases.
Do TCP ModBus or MQTTAnalyzer have ads?
Neither TCP ModBus nor MQTTAnalyzer shows ads.
Which is updated more often, TCP ModBus or MQTTAnalyzer?
TCP ModBus ships an update every 4 days, and MQTTAnalyzer every 5 days. Most recently, TCP ModBus was updated on October 13, 2026 and MQTTAnalyzer on October 16, 2026.

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