# ModbusV vs TROVIS 55Pro

The clearest difference is in-app purchases: TROVIS 55Pro at none against ModbusV's 2. TROVIS 55Pro also leads on update cadence (every 8 months vs every 17 months) and iOS requirement (9.0 vs 12.2). On price, ads and device support there is nothing between them.

Both are free to download. ModbusV sells 2 in-app purchases, starting at $0.49 per month. TROVIS 55Pro asks for nothing beyond the download.

ModbusV ships an update every 17 months, TROVIS 55Pro every 8 months. The most recent releases landed on October 18, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | ModbusV | TROVIS 55Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/modbusv/id666607476/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 17 months | **Every 8 months** |
| Monetization | Free with in-app purchases | — |
| Size | 108 MB | 23 MB |
| Requires iOS | 12.2 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Chai Kunnasit](https://appshunter.io/developer/666607479) | [KT-Elektronik, Klaucke und Partner GmbH](https://appshunter.io/developer/943003350) |

## What reviewers say

### ModbusV

[App page](https://appshunter.io/ios/app/modbusv/id666607476)

This utility tool facilitates the conversion of Modbus and DirectNet V addresses. It is designed for users who need to translate between these two industrial communication protocols.

**Highlights:** Modbus address conversion, DirectNet V address conversion, Industrial communication protocol translation, Utility tool

**Features:** macOS Compatibility

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium - 1 Month | $0.49 | per month |
| Premium - 1 Year | $3.99 | per year |


### TROVIS 55Pro

[App page](https://appshunter.io/ios/app/trovis-55pro/id943003351)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ModbusV free?

ModbusV is free to download, with in-app purchases available.

### Is TROVIS 55Pro free?

TROVIS 55Pro is free to download, with no in-app purchases.

### Do ModbusV or TROVIS 55Pro have ads?

Neither ModbusV nor TROVIS 55Pro shows ads.

### Which is updated more often, ModbusV or TROVIS 55Pro?

ModbusV ships an update every 17 months, and TROVIS 55Pro every 8 months. Most recently, ModbusV was updated on October 18, 2026 and TROVIS 55Pro on October 5, 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.*