IoT EMS vs Composer Mobile
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
IoT EMS
Read full descriptionHide full description
Based on the Internet of things, big data, cloud computing and other modern information technologies, arcrui cloud platform connects the distributed automatic fire alarm equipment, electrical fire monitoring equipment, intelligent smoke detector, safe electricity and water and other equipment to form a network, and intelligently perceives, identifies and locates the status of these equipment, dynamically collects fire information in real time, and communicates with the public Through the cloud platform for data analysis, mining and trend analysis, it helps to achieve the goals of scientific early warning of fire, grid management, and implementation of multiple responsibility supervision. It fills the gap that the original "nine small places" and hazardous chemical production enterprises can not effectively monitor, adapts to all public and civil buildings, realizes the unattended safe electricity use, and realizes the actual needs of "automation", "intelligence", "systematization" of safe electricity use and "refinement" of electricity use management.
Composer Mobile
Easily set up WiFi connectivity for your TouchCombo thermostat. Once connected, remotely control your device and manage its settings from your smartphone.
- WiFi setup for TouchCombo thermostats
- Remote device control
- Thermostat settings management
- Smartphone integration
Read full descriptionHide full description
Telkonet's Composer Mobile app is the tool you need to set up WiFi connectivity on your new TouchCombo thermostat, and then use it to remotely control your device.
Screenshots
Verdict
The clearest difference is update cadence: Composer Mobile at every 4 weeks against IoT EMS's every 2 months. Composer Mobile also leads on iOS requirement (11.0 vs 13). On price, ads, 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
IoT EMS ships an update every 2 months, Composer Mobile every 4 weeks. The most recent releases landed on October 5, 2026 and October 12, 2026 respectively.
| Parameter | IoT EMS | Composer Mobile |
|---|---|---|
| Price | Free | Free |
| Rating | — | 1.6 (13 ratings) — better |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | — | 13 — better |
| Update frequency | Every 2 months | Every 4 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 13 | 11.0 — better |
| Further details — not scored | ||
| Size | 25 MB | 45 MB |
| Age rating | 4+ | 4+ |
| Developer | ACREL CO.,LTD | Telkonet, Inc |
In-app purchases
IoT EMS
No in-app purchases
Composer Mobile
No in-app purchases
Questions
Is IoT EMS free?
Is Composer Mobile free?
Do IoT EMS or Composer Mobile have ads?
Which is updated more often, IoT EMS or Composer Mobile?
Other comparisons















