# ModbusV vs Voltello

The clearest difference is in-app purchases: Voltello at none against ModbusV's 2. Voltello also leads on update cadence (every 3 weeks vs every 17 months). On price, ads, device support and iOS requirement there is nothing between them.

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

ModbusV ships an update every 17 months, Voltello every 3 weeks. The most recent releases landed on June 6, 2026 and May 17, 2026 respectively.

## The numbers

| Metric | ModbusV | Voltello |
| --- | --- | --- |
| 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 3 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 108 MB | 56 MB |
| Requires iOS | **12.2** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Chai Kunnasit](https://appshunter.io/developer/666607479) | [Village Energy Operations Pty Ltd](https://appshunter.io/developer/1597230734) |

## 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 |


### Voltello

[App page](https://appshunter.io/ios/app/voltello/id1645268242)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ModbusV free?

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

### Is Voltello free?

Voltello is free to download, with no in-app purchases.

### Do ModbusV or Voltello have ads?

Neither ModbusV nor Voltello shows ads.

### Which is updated more often, ModbusV or Voltello?

ModbusV ships an update every 17 months, and Voltello every 3 weeks. Most recently, ModbusV was updated on June 6, 2026 and Voltello on May 17, 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.*