# Modbus TCP Pro — Modbus Reader with Templates

> Mobile Modbus TCP reader and writer for industrial control testing. (iPhone/iPad app by Bernard Struelens.)

- Source: https://appshunter.io/ios/app/modbus-tcp-pro/id6756293575 (this page in markdown: same URL + `.md`)
- Developer: [Bernard Struelens](https://appshunter.io/developer/1802500832)
- Category: Developer Tools
- Price: $11.99 with in-app purchases
- Age rating: 4+
- Requires: iOS 26.1 · 2 MB
- Languages: American English
- Released: 2025-12-15
- Data updated: 2026-08-29
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/modbus-tcp-pro/id6756293575/reviews.md

## What is Modbus TCP Pro?

Modbus Reader & Writer is a powerful and intuitive Modbus TCP tool designed for professionals.
Built for installers, HVAC technicians, engineers, and system integrators who need a fast and reliable way to test, read, and write Modbus registers directly from their iPhone.

Whether you work with heat pumps, PLCs, energy meters, or industrial controllers, this app gives you full control over Modbus TCP devices — anytime, anywhere.

Key Features
	•	Modbus TCP Connectivity
	•	Connect to any Modbus TCP device using IP address and port
	•	Configurable Unit ID (slave ID)
	•	Read Registers
	•	Holding Registers (Function Code 03)
	•	Input Registers (Function Code 04)
	•	Support for multiple data types and values
	•	Write Registers
	•	Write Single Register
	•	Write Multiple Registers
	•	Instant feedback and clear error reporting
	•	Designed for Testing & Debugging
	•	Ideal for commissioning and troubleshooting
	•	Perfect for field testing without a laptop
	•	Compatible with Modbus simulators and test environments (e.g. Node-RED)


Who Is This App For?
	•	HVAC installers and service technicians
	•	Industrial automation and PLC engineers
	•	Energy and building management professionals
	•	System integrators and commissioning engineers
	•	Developers testing Modbus-based systems


Reliable & Efficient
	•	Fast and stable connections
	•	Clear and actionable error messages
	•	Clean, focused interface — no unnecessary complexity
	•	Optimized for real-world professional use


Modbus Reader & Writer is your mobile Modbus toolbox —
ready for every installation, test, and service intervention.

## Key features

- Modbus TCP connectivity
- Read and write registers
- Support for multiple data types
- Configurable Unit ID
- Instant feedback and error reporting
- Designed for testing and debugging
- Field testing without a laptop

## Pricing and in-app purchases

Base price: $11.99.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Modbus Pro | $24.99 | one-time |


## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/modbus-tcp-pro/id6756293575/reviews.md

### 5/5 — Nice

*2026-05-31*

Hi. Nice tool. How can I save write and read templates? Greetz

### 5/5 — Klasse Tool

*2026-05-14*

Super App, funktioniert wunderbar zum auslesen von meinem Solakon ONE Hybrid Batterie Speicher. Danke für die Software!!!

## Frequently asked questions about Modbus TCP Pro

### What is Modbus TCP Pro used for?

Modbus TCP Pro is a mobile tool for professionals to test, read, and write Modbus registers directly from their iPhone or iPad. It's designed for field testing and debugging industrial control systems.

### What devices is Modbus TCP Pro compatible with?

Modbus TCP Pro is compatible with iPhone and iPad devices. It supports connecting to any Modbus TCP device using its IP address and port.

### Can Modbus TCP Pro write data to Modbus devices?

Yes, Modbus TCP Pro allows you to write single or multiple registers. It provides instant feedback and clear error reporting for these operations.

### Does Modbus TCP Pro support different data types?

Yes, the application supports multiple data types and values for reading and writing registers, offering flexibility for various industrial applications.

### Is Modbus TCP Pro suitable for offline use?

While Modbus TCP Pro requires a network connection to communicate with Modbus TCP devices, its design for field testing means it can be used in locations without a laptop, facilitating on-site interventions.

### What is the age rating for Modbus TCP Pro?

Modbus TCP Pro has an age rating of 4+, making it suitable for a wide range of users. The app was last updated on 2026-06-06.

### Does Modbus TCP Pro have ads?

No, Modbus TCP Pro is ad-free. It is a free application with no advertisements to interrupt your workflow.

### How often is Modbus TCP Pro updated?

The application was last updated on 2026-06-06, indicating ongoing development and support. Its latest version is 2.2.

## Version history (last 5 releases)

### 2.3 — 2026-07-11

All functions included. No in-app purchases.

### 2.2 — 2026-06-06

bugfix

### 2.1 — 2026-06-03

bugfix

### 2.0 — 2026-04-28

Bugfixes, freemium program.

### 1.5 — 2026-04-12

Bugfixes.

## More apps by Bernard Struelens

- [SwiftList Shopper](https://appshunter.io/ios/app/swiftlist-shopper/id6755939271)
- [Care 4 Event](https://appshunter.io/ios/app/care-4-event/id6756478445)
- [JustMarked](https://appshunter.io/ios/app/justmarked/id6757016550)
- [Dynamisch Tarief](https://appshunter.io/ios/app/dynamisch-tarief/id6757620277)
- [VoiceScribe](https://appshunter.io/ios/app/voicescribe/id6762504466)

All apps by Bernard Struelens: https://appshunter.io/developer/1802500832

## Related topics

[modoc](https://appshunter.io/ios/topics/modoc)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-29.*