Comparison

SMI Chat vs OpenIoTHub

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

SMI Chat

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
Read full description

Built around group chat rooms, SMI Chat can interact with other SMI apps and lets you share messages, images, videos and files among team members. SMI Chat is the center of all communications of the team’s collaborative environment. Features include: • Instantly share messages, images, videos and files of any kind within groups of any size • Voice and video 1-1 and conference calling via WebRTC • End-to-end encryption using Olm (https://matrix.org/git/olm) • See who's reading your messages with read receipts • Communicate with users anywhere in the Matrix.org ecosystem. • Participate in guest-accessible public rooms • Highly scalable - supports hundreds of rooms and thousands of users • Fully synchronized message history across multiple devices and browsers • Finely configurable notification settings, synchronized over all devices • Infinite searchable chat history • Permalinks to messages

About

OpenIoTHub

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
Read full description

IoT device management and intranet penetration access tool, supporting various open-source and third-party devices (Feixun plug, Feixun R1 speaker, ONVIF camera, etc.) 1. Support TCP, UDP, HTTP, FTP intranet penetration 2. Support intelligent hardware, including open-source switches, Feixun power strips, etc 3. Support the following private clouds - CasaOS - ZimaOS - Green Union NAS can manually add and access web pages - Feiniu NAS manually adds access to various Docker interfaces - Unraid - Synology - QNAP - docker

Screenshots

SMI Chat3 screens
OpenIoTHub4 screens

Verdict

The call

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.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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

Scorecard6 real differences · 4 level
SMI Chat versus OpenIoTHub: the parameters behind the verdict, then further details
ParameterSMI ChatOpenIoTHub
PriceFreeFree
Rating4.0 (1 ratings)5.0 (1 ratings) — better
Positive reviews100.0% of reviews — better66.7% of reviews
Number of ratings11
Update frequencyEvery 3 weeksWeekly — better
AdsNo — betterYes
In-app purchasesNoNo
MonetizationFree — betterAd-supported
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS9.0 — better12.0
Further details — not scored
Size79 MB155 MB
Age rating4+4+
DeveloperSiliconmotionHefei Yunyilian Intelligent Technology Co., Ltd

Customer experience

SMI Chat

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

OpenIoTHub

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews3 reviews
Positive66.7%
Neutral0.0%
Negative33.3%

In-app purchases

None

SMI Chat

No in-app purchases

None

OpenIoTHub

No in-app purchases

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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