# SMI Chat vs OpenIoTHub

The clearest difference is rating: OpenIoTHub at 5.0 against SMI Chat's 4.0. OpenIoTHub also leads on update cadence (weekly vs every 3 weeks). SMI Chat's advantage is ads (none vs shown) and review sentiment (100% vs 67%). On price, ratings volume, in-app purchases and device support there is nothing between them.

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

OpenIoTHub holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews complicate that: 100% of SMI Chat's written reviews are positive against 67% of OpenIoTHub's, so the app with the better star average is not the one people write more warmly about.

SMI Chat ships an update every 3 weeks, OpenIoTHub weekly. The most recent releases landed on October 6, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | SMI Chat | OpenIoTHub |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/smi-chat/id1234258844/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/openiothub/id1501554327/reviews)** |
| Number of ratings | 1 | 1 |
| Positive reviews | **100.0% of reviews** | 66.7% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 3 weeks | **Weekly** |
| Monetization | **Free** | Ad-supported |
| Size | 79 MB | 155 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Siliconmotion](https://appshunter.io/developer/1050091822) | [Hefei Yunyilian Intelligent Technology Co., Ltd](https://appshunter.io/developer/1541792997) |

## What reviewers say

### SMI Chat

[App page](https://appshunter.io/ios/app/smi-chat/id1234258844)

This communication platform facilitates group and individual messaging, file sharing, and voice/video calls within a secure, encrypted environment. It allows seamless interaction with other apps in its ecosystem and offers features like read receipts and searchable history across devices.

**Highlights:** Group chat rooms, Message, image, video, file sharing, 1-on-1 and conference voice/video calls, End-to-end encryption, Read receipts, Matrix.org ecosystem integration, Searchable chat history

**Features:** macOS Compatibility, Siri integration

**In-app purchases:** none


### OpenIoTHub

[App page](https://appshunter.io/ios/app/openiothub/id1501554327)

This tool provides remote access and management for various IoT devices and intranet services. It supports multiple protocols and integrates with popular private cloud solutions and hardware.

**Highlights:** Remote IoT device management, Intranet penetration access, Supports TCP, UDP, HTTP, FTP, Integrates with private clouds (CasaOS, ZimaOS, etc.), Supports various hardware and Docker interfaces

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is SMI Chat free?

SMI Chat is free to download, with no in-app purchases.

### Is OpenIoTHub free?

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

### Which has better reviews, SMI Chat or OpenIoTHub?

OpenIoTHub is rated higher. SMI Chat averages 4.0 out of 5 from 1 ratings, while OpenIoTHub averages 5.0 from 1 ratings.

### Do SMI Chat or OpenIoTHub have ads?

OpenIoTHub shows ads; SMI Chat does not.

### Which is updated more often, SMI Chat or OpenIoTHub?

SMI Chat ships an update every 3 weeks, and OpenIoTHub weekly. Most recently, SMI Chat was updated on October 6, 2026 and OpenIoTHub on October 17, 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.*