# SIMATIC WinCC OA UI vs IoT MQTT Panel

The clearest difference is ads: SIMATIC WinCC OA UI at none against IoT MQTT Panel's shown. SIMATIC WinCC OA UI also leads on monetization model (free vs free with in-app purchases) and review sentiment (100% vs 85%). IoT MQTT Panel's advantage is update cadence (fortnightly vs every 2 months) and ratings volume (44 vs 2). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

SIMATIC WinCC OA UI holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: IoT MQTT Panel has 44 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 100% of SIMATIC WinCC OA UI's written reviews are positive against 85% of IoT MQTT Panel's.

SIMATIC WinCC OA UI ships an update every 2 months, IoT MQTT Panel fortnightly. The most recent releases landed on October 25, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | SIMATIC WinCC OA UI | IoT MQTT Panel |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/simatic-wincc-oa-ui/id1073943068/reviews)** | [4.8 (44 ratings)](https://appshunter.io/ios/app/iot-mqtt-panel/id6466780124/reviews) |
| Number of ratings | 2 | **44** |
| Positive reviews | **100.0% of reviews** | 85.5% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 70 MB | 34 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Siemens AG](https://appshunter.io/developer/394503271) | [Rahul Kundu](https://appshunter.io/developer/1707792906) |

## What reviewers say

### SIMATIC WinCC OA UI

[App page](https://appshunter.io/ios/app/simatic-wincc-oa-ui/id1073943068)

Monitor and control your SIMATIC WinCC OA plant remotely from your smartphone or tablet. Access the same powerful functionality as the desktop interface, ensuring secure and reliable real-time operation from anywhere.

**Highlights:** Remote plant monitoring, Real-time control, Multiple system connections, Secure data transmission, Intuitive mobile interface

**In-app purchases:** none


### IoT MQTT Panel

[App page](https://appshunter.io/ios/app/iot-mqtt-panel/id6466780124)

Create DIY smart home projects quickly with a configurable dashboard. This app supports MQTT and Websocket protocols with SSL for secure communication. It offers real-time updates, customizable panels with over 250 icons, and various data visualization options.

**Highlights:** Always-on dashboard, MQTT & Websocket support, SSL secure communication, Real-time panel updates, 250+ customizable icons, Dark theme, Import/Export configuration

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use and configure
- 👍 Great for testing MQTT
- 👍 Versatile and flexible app
- 👍 Good for visualizing MQTT data
- 👍 Well-thought-out design

**What reviewers complain about**

- 🐛 Connectivity issues reported
- 🐛 Inconsistent connection to brokers
- 🐛 App can freeze or become unresponsive
- 🐛 Some users experience random disconnections
- 🐛 Background operation limitations on iOS

**Reported bugs**

- Randomly won't connect to public MQTT brokers
- App fails to connect to broker frequently
- Connectivity seems very inconsistent
- App freezes when trying to input URL in web page panel
- App does not reconnect after MQTT server disconnects, requires restart

**Requested features**

- Configuration example would be useful
- Gauges showing color portions instead of whole gauge changing color
- Apple Watch support for viewing data
- Option to search for keywords in payload
- Icon for opening and closing windows


## Frequently asked questions

### Is SIMATIC WinCC OA UI free?

SIMATIC WinCC OA UI is free to download, with no in-app purchases.

### Is IoT MQTT Panel free?

IoT MQTT Panel is free to download, with no in-app purchases.

### Which has better reviews, SIMATIC WinCC OA UI or IoT MQTT Panel?

SIMATIC WinCC OA UI is rated higher. SIMATIC WinCC OA UI averages 5.0 out of 5 from 2 ratings, while IoT MQTT Panel averages 4.8 from 44 ratings.

### Do SIMATIC WinCC OA UI or IoT MQTT Panel have ads?

IoT MQTT Panel shows ads; SIMATIC WinCC OA UI does not.

### Which is updated more often, SIMATIC WinCC OA UI or IoT MQTT Panel?

SIMATIC WinCC OA UI ships an update every 2 months, and IoT MQTT Panel fortnightly. Most recently, SIMATIC WinCC OA UI was updated on October 25, 2026 and IoT MQTT Panel on October 30, 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.*