# CS Modbus vs HMI

The clearest difference is in-app purchases: CS Modbus at none against HMI's 1. CS Modbus also leads on iOS requirement (7.0 vs 12.2). On price, ads and device support there is nothing between them.

Both are free to download. HMI sells 1 in-app purchase, starting at $9.99 per month. CS Modbus asks for nothing beyond the download.

## The numbers

| Metric | CS Modbus | HMI |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (2 ratings)](https://appshunter.io/ios/app/cs-modbus/id979933120/reviews)** | — |
| Number of ratings | **2** | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Fortnightly |
| Monetization | Free | — |
| Size | 1 MB | 68 MB |
| Requires iOS | **7.0** | 12.2 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [SikYi Chan](https://appshunter.io/developer/967732681) | [MicroClarity Inc.](https://appshunter.io/developer/1114325705) |

## What reviewers say

### CS Modbus

[App page](https://appshunter.io/ios/app/cs-modbus/id979933120)

Access and monitor remote I/O and RTU devices running on Modbus protocol. Troubleshoot addresses, verify data accuracy, and convert values to various formats like binary, float, and integers. Ideal for learning and demonstrating Modbus functionality.

**Highlights:** Access holding registers, coils, and input registers, Monitor remote I/O and RTU devices, Troubleshoot Modbus addresses, Verify data accuracy, Convert values to binary, float, unsigned integer, and integer, Learn Modbus protocol, Perform equipment demonstrations

**Features:** macOS Compatibility

**In-app purchases:** none


### HMI

[App page](https://appshunter.io/ios/app/hmi-opc-uamodbusmqttplcs/id6475274586)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Subscription | $9.99 | per month |


## Frequently asked questions

### Is CS Modbus free?

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

### Is HMI free?

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

### Do CS Modbus or HMI have ads?

Neither CS Modbus nor HMI shows ads.

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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.*