# ICM I3 Thermostat vs e

The clearest difference is update cadence: ICM I3 Thermostat at every 6 weeks against e's every 33 months. ICM I3 Thermostat also leads on iOS requirement (7.0 vs 13.0). On price, ads, 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.

ICM I3 Thermostat ships an update every 6 weeks, e every 33 months. The most recent releases landed on November 1, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | ICM I3 Thermostat | e |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (4 ratings)](https://appshunter.io/ios/app/icm-i3-thermostat/id879929074/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 6 weeks** | Every 33 months |
| Monetization | Free | — |
| Size | 54 MB | 6 MB |
| Requires iOS | **7.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [ICM Controls Corp](https://appshunter.io/developer/879929077) | [Rockwool International A/S](https://appshunter.io/developer/560117967) |

## What reviewers say

### ICM I3 Thermostat

[App page](https://appshunter.io/ios/app/icm-i3-thermostat/id879929074)

Remotely monitor and control your home's heating and cooling system. Schedule temperature changes, receive alerts for system malfunctions, and save money on energy bills. Ideal for vacation homes or rental properties.

**Highlights:** Remote thermostat monitoring, HVAC system status verification, Adjust comfort level remotely, Weekly scheduling, Vacation/close date settings, System malfunction alerts, Energy saving features

**Features:** macOS Compatibility

**In-app purchases:** none


### e

[App page](https://appshunter.io/ios/app/e-gro/id6476660626)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is ICM I3 Thermostat free?

ICM I3 Thermostat is free to download, with no in-app purchases.

### Is e free?

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

### Do ICM I3 Thermostat or e have ads?

Neither ICM I3 Thermostat nor e shows ads.

### Which is updated more often, ICM I3 Thermostat or e?

ICM I3 Thermostat ships an update every 6 weeks, and e every 33 months. Most recently, ICM I3 Thermostat was updated on November 1, 2026 and e on November 4, 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.*