# PLC Ninja — Read PLC I/O in the field

> Mobile application for real-time monitoring of Programmable Logic Controller (PLC) data. (iPhone/iPad app by SHAOHUA YI.)

- Source: https://appshunter.io/ios/app/plc-ninja/id6805188950 (this page in markdown: same URL + `.md`)
- Developer: [SHAOHUA YI](https://appshunter.io/developer/6805189132)
- Category: Utilities
- Price: Free with in-app purchases
- Rating: 5.00/5 from 3 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.6 · 10 MB
- Languages: American English
- Released: 2026-09-10
- Data updated: 2026-10-05
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/plc-ninja/id6805188950/reviews.md

## What is PLC Ninja?

PLC Ninja puts live PLC data on your phone. Connect over Ethernet, Wi-Fi, or a serial adapter, and see every input, output, timer, counter and analog value updating in real time — standing at the panel, not walking back to the office.

PLC Ninja is an independent product and is not affiliated with, endorsed by, or sponsored by Rockwell Automation, Siemens AG, AutomationDirect, or Mitsubishi Electric. Allen-Bradley, ControlLogix, CompactLogix, GuardLogix, MicroLogix, SLC 500, RSLogix and Studio 5000 are trademarks of Rockwell Automation. SIMATIC, S7 and LOGO! are trademarks of Siemens AG. DirectLOGIC is a trademark of AutomationDirect. MELSEC and FX are trademarks of Mitsubishi Electric. All product names are used only to identify the equipment this app can connect to.

Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://plcninja-support.github.io/support/privacy.html

## Key features

- Real-time PLC data monitoring
- Ethernet, Wi-Fi, and serial connection support
- View inputs and outputs
- Monitor timers and counters
- Access analog values

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Standard | $3.99 | per month |
| Standard | $39.99 | per year |
| Professional | $8.99 | per month |
| Professional | $89.99 | per year |
| Ultimate | $14.99 | per month |
| Ultimate | $149.99 | per year |


## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/plc-ninja/id6805188950/reviews.md

### 5/5 — Perfect tools

*2026-09-14*

It’s a good trouble shooting aid tool if you work places have a lot Allen Bradley plcs. Need know how to find out and set UP plc’s IP address and also on iPhone side.

### 5/5 — Very useful

*2026-09-13*

Probably the only good plc app in the whole AppStore ! Thank you !

## Frequently asked questions about PLC Ninja

### What devices does PLC Ninja support?

PLC Ninja is currently supported on iPhone devices. The app was last updated on September 10, 2026, with version 1.0.

### How does PLC Ninja connect to PLCs?

PLC Ninja allows connections over Ethernet, Wi-Fi, or a serial adapter. This enables real-time data access directly from your mobile device.

### What kind of data can I see with PLC Ninja?

You can view live inputs, outputs, timers, counters, and analog values from your PLC. This allows for immediate monitoring without returning to an office.

### Is PLC Ninja affiliated with PLC manufacturers?

No, PLC Ninja is an independent product and is not affiliated with, endorsed by, or sponsored by major manufacturers like Rockwell Automation or Siemens AG.

### What is the age rating for PLC Ninja?

PLC Ninja has an age rating of 4+. This indicates it is suitable for a broad audience.

### Does PLC Ninja have ads?

No, PLC Ninja does not contain advertisements. The app is free to download and use.

### What is the pricing for PLC Ninja?

PLC Ninja is available for free. There are in-app purchases available, but the core functionality is free to use.

### How often is PLC Ninja updated?

PLC Ninja was last updated on September 10, 2026, with version 1.0. Future updates will depend on developer releases.

## Version history (last 2 releases)

### 1.1 — 2026-09-29

What's New in 1.1
- Better CSV import for remote racks and more module types, including 1734 POINT I/O
- Communication modules (DHRIO, DNB, EN2T and others) are now labeled correctly instead of showing as I/O
- Fixed values briefly disappearing on slow or busy networks
- Fixed MicroLogix 32-point modules, points past 15, and analog channels showing the wrong values
- 16- and 32-point ControlLogix / CompactLogix modules now show every LED on the card
- New app icon
- General stability improvements and bug fixes

### 1.0 — 2026-09-10

No release notes.

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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 2026-10-05.*