# Modbus TCP FieldKit — Client, Server, Simulator

> Client, Server, Simulator (iPhone/iPad app by Vladimir Chemeris.)

- Source: https://appshunter.io/ios/app/modbus-tcp-fieldkit/id6768897913 (this page in markdown: same URL + `.md`)
- Developer: [Vladimir Chemeris](https://appshunter.io/developer/1854526571)
- Category: Utilities
- Price: $4.99
- Age rating: 4+
- Requires: iOS 18.0 · 10 MB
- Languages: American English, German (Germany), Japanese, Korean, Brazilian Portuguese, Russian, Chinese (Simplified, China), Chinese (Traditional, Taiwan)
- Released: 2026-05-15
- Data updated: 2026-09-03
- User reviews in markdown: https://appshunter.io/ios/app/modbus-tcp-fieldkit/id6768897913/reviews.md

## What is Modbus TCP FieldKit?

Modbus TCP FieldKit puts a professional Modbus TCP toolkit in your pocket. Commission equipment in the field, validate setups in the lab, or troubleshoot home automation — all from your iPhone.

• Connect to any Modbus TCP device — read coils and registers, monitor data blocks in real time
• Save device profiles for one-tap reconnection to frequently used endpoints
• Write with confidence — every write operation requires your explicit confirmation
• Built-in foreground simulator — run editable coils and holding registers for testing
• Track active connections and review bounded local logs kept on your device
• All data stays local — logs and exports are sanitized by default

Requires Local Network access for device communication. Default server port is 1502. Background server operation and port 502 support pending device validation.


## Version history (last 5 releases)

### 1.0.6 — 2026-08-18

Fixed the register editor closing by itself while you create a new device profile.

### 1.0.5 — 2026-08-01

Improved App Store presentation and release packaging for iPhone and iPad.

### 1.0.4 — 2026-06-24

Performance and stability improvements.

### 1.0.3 — 2026-06-19

Rate the app: a quick in-app rating prompt appears after successful read/write operations, plus a new Rate the app button in Settings.

### 1.0.1 — 2026-05-15

No release notes.

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## More apps by Vladimir Chemeris

- [iPerf3 Client & Server](https://appshunter.io/ios/app/iperf3-client-and-server/id6755545337)
- [Open Links in Apps](https://appshunter.io/ios/app/open-links-in-apps/id6757597623)
- [Offline AI Translator & Chat](https://appshunter.io/ios/app/offline-ai-translator-and-chat/id6765833139)
- [MQTT Commander](https://appshunter.io/ios/app/mqtt-commander/id6779048421)
- [CacheDeck: Redis® Client](https://appshunter.io/ios/app/cachedeck-redis-client/id6783852434)

All apps by Vladimir Chemeris: https://appshunter.io/developer/1854526571

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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 2026-09-03.*