# Modbus TCP FieldKit vs Modbus Explorer

The clearest difference is price: Modbus Explorer at Free against Modbus TCP FieldKit's $4.99. Modbus Explorer also leads on iOS requirement (16.0 vs 18.0). Modbus TCP FieldKit's advantage is in-app purchases (none vs 1). On update cadence, ads and device support there is nothing between them.

Modbus Explorer is free to download; Modbus TCP FieldKit costs $4.99 up front. Modbus Explorer sells 1 one-off in-app purchase. Modbus TCP FieldKit asks for nothing beyond the download.

Modbus TCP FieldKit ships an update every 3 weeks, Modbus Explorer every 2 weeks. The most recent releases landed on September 17, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | Modbus TCP FieldKit | Modbus Explorer |
| --- | --- | --- |
| Price | $4.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 weeks** |
| Size | 11 MB | 5 MB |
| Requires iOS | 18.0 | **16.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Vladimir Chemeris](https://appshunter.io/developer/1854526571) | [HASAN BARAN](https://appshunter.io/developer/6773067753) |

## What reviewers say

### Modbus TCP FieldKit

[App page](https://appshunter.io/ios/app/modbus-tcp-fieldkit/id6768897913)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Modbus Explorer

[App page](https://appshunter.io/ios/app/modbus-explorer/id6778095956)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Modbus Explorer Pro | $14.99 | one-time |


## Frequently asked questions

### Is Modbus TCP FieldKit free?

Modbus TCP FieldKit costs $4.99, with no in-app purchases.

### Is Modbus Explorer free?

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

### Do Modbus TCP FieldKit or Modbus Explorer have ads?

Neither Modbus TCP FieldKit nor Modbus Explorer shows ads.

### Which is updated more often, Modbus TCP FieldKit or Modbus Explorer?

Modbus TCP FieldKit ships an update every 3 weeks, and Modbus Explorer every 2 weeks. Most recently, Modbus TCP FieldKit was updated on September 17, 2026 and Modbus Explorer on September 21, 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.*