Comparison

IoT RTU vs Modbus TCP Station

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

Head to head
About

IoT RTU

This app provides remote monitoring and control for industrial M2M and IoT devices. It utilizes cellular networks like GSM, GPRS, 3G, 4G, and NB-IoT for seamless communication.

Highlights
  • Remote monitoring
  • Industrial M2M control
  • IoT device management
  • Cellular network support
  • GSM, GPRS, 3G, 4G, NB-IoT compatibility
Features
Read full description

A Remote Monitoring & Control solution for Industrial M2M, IoT, RTU over GSM GPRS 3G 4G NB-IoT cellular network.

About

Modbus TCP Station

Features
Read full description

Turn your smartphone into a powerful Modbus TCP Master tool! Designed for PLC engineers, system integrators, and DIY enthusiasts, Modbus TCP Station allows you to communicate with, monitor, and control any Modbus TCP-enabled device (PLC, HMI, SCADA, ESP32, Raspberry Pi, etc.) with ease. Whether you are debugging a smart factory system or testing a home automation project, this app provides a professional interface to visualize and manipulate data in real-time. Key Features: β€’ Complete Connectivity: Connect to any Modbus TCP Server (Slave) via IP and Port. β€’ Comprehensive Function Codes: Supports FC01 (Coil), FC02 (Discrete Input), FC03 (Holding Register), and FC04 (Input Register). β€’ Flexible Data Formats: View data in Binary, Unsigned/Signed Integer, Hex, Float, and Double. β€’ Advanced Byte Swapping: Supports Inverse/Swap options for handling complex Word orders (Big Endian/Little Endian). β€’ Real-time Monitoring: Watch your data change instantly with efficient polling. β€’ Write Capabilities: Easily write values to Coils and Registers for device control. Pro Features: β€’ Profile Management: Save and load unlimited connection profiles and register setups. β€’ Ad-Free Experience: Focus on your work without distractions. β€’ Unlimited Views: Create as many data blocks as you need. Multi-Language Support: β€’ English β€’ German (Deutsch) β€’ Korean (ν•œκ΅­μ–΄) β€’ Japanese (ζ—₯本θͺž) β€’ Traditional Chinese (繁體中文 - TW/HK) β€’ Simplified Chinese (δΈ­ζ–‡) Why choose Modbus TCP Station? Stop carrying heavy laptops for simple checks. With a clean UI and robust performance, this is the essential pocket tool for every automation engineer. Download now and master your Modbus network!

Screenshots

IoT RTU4 screens
Modbus TCP Station4 screens

Verdict

The call

The clearest difference is in-app purchases: IoT RTU at none against Modbus TCP Station's 2. IoT RTU also leads on ads (none vs shown) and iOS requirement (8.0 vs 15.0). Modbus TCP Station's advantage is update cadence (every 10 days vs monthly). On price and device support there is nothing between them.

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

CostPrice Β· In-app purchases Β· Ads Β· Monetization

Both are free to download. Modbus TCP Station sells 2 one-off in-app purchases. IoT RTU asks for nothing beyond the download.

UpkeepUpdate frequency

IoT RTU ships an update monthly, Modbus TCP Station every 10 days. Both last shipped on October 24, 2026.

Scorecard4 real differences Β· 4 level
IoT RTU versus Modbus TCP Station: the parameters behind the verdict, then further details
ParameterIoT RTUModbus TCP Station
PriceFreeFree
Positive reviews33.3% of reviewsβ€”
Update frequencyMonthlyEvery 10 days β€” better
AdsNo β€” betterYes
In-app purchasesNo β€” betterYes
MonetizationFreeβ€”
DevicesiPhone, iPodiPhone, iPad, iPod β€” better
Requires iOS8.0 β€” better15.0
Further details β€” not scored
Size8 MB31 MB
Age rating4+4+
Developer朝山 马DONGSOO LEE

In-app purchases

None

IoT RTU

No in-app purchases

2 purchases

Modbus TCP Station

One-time2
  • 1-Month Premium Pass$0.99
  • Premium Upgrade$9.99

Questions

Is IoT RTU free?
IoT RTU is free to download, with no in-app purchases.
Is Modbus TCP Station free?
Modbus TCP Station is free to download, with in-app purchases available.
Do IoT RTU or Modbus TCP Station have ads?
Modbus TCP Station shows ads; IoT RTU does not.
Which is updated more often, IoT RTU or Modbus TCP Station?
IoT RTU ships an update monthly, and Modbus TCP Station every 10 days. Most recently, IoT RTU was updated on October 24, 2026 and Modbus TCP Station on October 24, 2026.

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