# iCOMM Connectivity vs ZenBus

The clearest difference is ratings volume: iCOMM Connectivity at 398 against ZenBus's 9. iCOMM Connectivity also leads on iOS requirement (15.1 vs 18.0). ZenBus's advantage is update cadence (every 6 weeks vs every 3 months). On price, rating, review sentiment and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 1.2 for iCOMM Connectivity against 1.1 for ZenBus. That said, the two scores are not equally well evidenced: iCOMM Connectivity has 398 ratings behind it against 9, so its average is the more settled of the two. Written reviews are what separate them: 3% of iCOMM Connectivity's written reviews are positive against 0% of ZenBus's.

iCOMM Connectivity ships an update every 3 months, ZenBus every 6 weeks. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | iCOMM Connectivity | ZenBus |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.2 (398 ratings)](https://appshunter.io/ios/app/icomm-connectivity/id1494213395/reviews)** | [1.1 (9 ratings)](https://appshunter.io/ios/app/zenbus/id1576474079/reviews) |
| Number of ratings | **398** | 9 |
| Positive reviews | **3.2% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 6 weeks** |
| Monetization | Free | Free |
| Size | 33 MB | 21 MB |
| Requires iOS | **15.1** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [A. O. Smith](https://appshunter.io/developer/456489825) | [Zenduit](https://appshunter.io/developer/1093717453) |

## 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


### ZenBus

[App page](https://appshunter.io/ios/app/zenbus/id1576474079)

This app provides real-time tracking for shuttles and school buses, offering estimated arrival times and location updates. It allows users to set arrival notifications and can integrate with NFC tags for boarding and disembarking alerts, enhancing safety and peace of mind for guardians.

**Highlights:** Real-time bus location tracking, Estimated arrival time (ETA) updates, Customizable arrival notifications, NFC tagging for boarding/disembarking alerts, Guardian/Parental monitoring

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is iCOMM Connectivity free?

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

### Is ZenBus free?

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

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

iCOMM Connectivity is rated higher. iCOMM Connectivity averages 1.2 out of 5 from 398 ratings, while ZenBus averages 1.1 from 9 ratings.

### Do iCOMM Connectivity or ZenBus have ads?

Neither iCOMM Connectivity nor ZenBus shows ads.

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

iCOMM Connectivity ships an update every 3 months, and ZenBus every 6 weeks. Most recently, iCOMM Connectivity was updated on October 25, 2026 and ZenBus on October 24, 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.*