# iCOMM Connectivity vs Rheem

The clearest difference is rating: Rheem at 4.6 against iCOMM Connectivity's 1.2. Rheem also leads on review sentiment (40% vs 3%) and update cadence (monthly vs every 3 months). iCOMM Connectivity's advantage is device support (3 vs 1). On price, ads, in-app purchases and monetization model there is nothing between them.

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

Rheem holds the better App Store score, 4.6 against 1.2. Both are backed by a comparable volume of ratings — 398 and 1.8K respectively. Written reviews point the same way: 3% of iCOMM Connectivity's written reviews are positive against 40% of Rheem's.

iCOMM Connectivity ships an update every 3 months, Rheem monthly. The most recent releases landed on October 25, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | iCOMM Connectivity | Rheem |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.2 (398 ratings)](https://appshunter.io/ios/app/icomm-connectivity/id1494213395/reviews) | **[4.6 (1.8K ratings)](https://appshunter.io/ios/app/rheem/id1604626837/reviews)** |
| Number of ratings | 398 | **1.8K** |
| Positive reviews | 3.2% of reviews | **40.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Monthly** |
| Monetization | Free | Free |
| Size | 33 MB | 109 MB |
| Requires iOS | **15.1** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [A. O. Smith](https://appshunter.io/developer/456489825) | [Rheem Manufacturing Company](https://appshunter.io/developer/853793269) |

## What reviewers say

### iCOMM Connectivity

[App page](https://appshunter.io/ios/app/icomm-connectivity/id1494213395)

Remotely manage compatible water heaters with this app. Monitor temperature, operating modes, and receive diagnostic notifications. Optimize energy usage by aligning with utility programs.

**Highlights:** Remote water heater management, Temperature and mode control, Diagnostic fault notifications, Utility program alignment, Easy setup process

**In-app purchases:** none

**What reviewers like**

- ✅ Water heater hardware itself performs well
- 🎯 Simple temperature adjustment when working
- 📊 Basic hot water availability gauge
- ⚙️ Vacation mode functionality
- 🔧 Mode switching capability

**What reviewers complain about**

- 🐛 Constant connectivity failures and service outages
- 🔄 App repeatedly forgets registered water heater
- ❌ Requires re-registration multiple times monthly
- ⏱️ Frequent forced logouts and session expirations
- 📱 QR code scanning consistently fails

**Reported bugs**

- App loses water heater registration without warning
- QR code scanner fails to recognize valid codes
- Manual serial number entry rejected despite correct input
- Session expires within 15-30 seconds of login
- App crashes when attempting to set schedules

**Requested features**

- Real-time current water temperature display
- Hourly energy usage breakdown (not just daily/monthly)
- Simple on/off scheduling by time of day
- Temperature scheduling for specific times
- Data export capability


### Rheem

[App page](https://appshunter.io/ios/app/rheem/id1604626837)

This app streamlines HVAC installation and service for contractors. It offers Bluetooth connectivity for system setup and troubleshooting, along with comprehensive support for product information, warranty tracking, and locating resources.

**Highlights:** Bluetooth setup and troubleshooting, System monitoring and status checks, Alarm diagnosis and history, Parts replacement guidance, Access to manuals and tech sheets, Warranty tracking and certificate sharing, Retailer and distributor locator

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is iCOMM Connectivity free?

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

### Is Rheem free?

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

### Which has better reviews, iCOMM Connectivity or Rheem?

Rheem is rated higher. iCOMM Connectivity averages 1.2 out of 5 from 398 ratings, while Rheem averages 4.6 from 1.8K ratings.

### Do iCOMM Connectivity or Rheem have ads?

Neither iCOMM Connectivity nor Rheem shows ads.

### Which is updated more often, iCOMM Connectivity or Rheem?

iCOMM Connectivity ships an update every 3 months, and Rheem monthly. Most recently, iCOMM Connectivity was updated on October 25, 2026 and Rheem on October 31, 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.*