# Sub vs Watts® Home

Sub and Watts® Home both sit at 4.4 stars, but that hides the real split: 28% of Watts® Home's written reviews are positive against 15% of Sub's. Watts® Home also leads on monetization model (free vs ad-supported) and ratings volume (4.2K vs 790). Sub's advantage is update cadence (every 5 weeks vs every 3 months). On price, rating, ads and in-app purchases there is nothing between them.

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

Watts® Home holds the better App Store score, 4.6 against 4.4. That said, the two scores are not equally well evidenced: Watts® Home has 4.2K ratings behind it against 790, so its average is the more settled of the two. Written reviews point the same way: 15% of Sub's written reviews are positive against 28% of Watts® Home's.

Sub ships an update every 5 weeks, Watts® Home every 3 months. The most recent releases landed on November 11, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Sub | Watts® Home |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (790 ratings)](https://appshunter.io/ios/app/sub-zero-group-owners-app/id1248991284/reviews) | **[4.6 (4.2K ratings)](https://appshunter.io/ios/app/watts-home/id1500497974/reviews)** |
| Number of ratings | 790 | **4.2K** |
| Positive reviews | 14.7% of reviews | **28.1% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 3 months |
| Monetization | Ad-supported | **Free** |
| Size | 69 MB | 187 MB |
| Requires iOS | 15.5 | **12.2** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sub-Zero and Wolf](https://appshunter.io/developer/983988992) | [Watts Water Technologies](https://appshunter.io/developer/844447908) |

## What reviewers say

### Sub

[App page](https://appshunter.io/ios/app/sub-zero-group-owners-app/id1248991284)

This app enhances your kitchen experience by guiding you through recipes from websites and a curated collection. It allows remote control and monitoring of Sub-Zero refrigeration, Cove dishwashing, and Wolf appliances, ensuring optimal performance and convenience.

**Highlights:** Guided cooking from online recipes, Chef-tested recipes optimized for Wolf appliances, Remote dishwasher control and monitoring, Refrigerator settings and alerts, Filter recipes by cooking mode, Bookmark and share recipes

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Responsive and intuitive app
- 👍 Helpful notifications and alerts
- 🔒 Secure connection to appliances

**What reviewers complain about**

- 🐛 Frequent connection issues and disconnects
- 🔍 Lack of actual temperature monitoring
- 🤔 Confusing setup and pairing process
- 🔍 Missing key features like remote start

**Reported bugs**

- App crashes after recent updates
- Unable to log in or register account
- Appliances disappear from the app
- Firmware update failures brick appliances

**Requested features**

- Add support for Celsius temperature units
- Provide real-time temperature and energy consumption data
- Integrate with smart home platforms like Apple HomeKit


### Watts® Home

[App page](https://appshunter.io/ios/app/watts-home/id1500497974)

Control and monitor your Watts connected home devices remotely. Manage thermostats, snow melting systems, and floor heating with programmable schedules and energy-saving modes. Receive alerts for any issues and access support easily.

**Highlights:** Remote monitoring and control, Programmable schedules, Energy-saving modes (Away mode), Thermostat and floor heating setpoint adjustments, Snow melting system control, Energy usage monitoring and reporting, Device access sharing

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

**In-app purchases:** none

**What reviewers like**

- 🚀 Reliable connectivity
- 👍 Easy to use
- 🔥 Awesome app updates
- 🌡️ Helpful temperature monitoring

**What reviewers complain about**

- 🐛 Connectivity issues
- 🤯 Frequent sign-outs
- 🤔 Limited functionality
- 🤖 Unstable app performance

**Reported bugs**

- App crashes after updates
- Devices not detected or offline
- Login issues and account problems

**Requested features**

- Improved scheduling options
- Integration with smart home platforms
- More detailed sensor data and reporting
- Customizable user interface


## Frequently asked questions

### Is Sub free?

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

### Is Watts® Home free?

Watts® Home is free to download, with no in-app purchases.

### Which has better reviews, Sub or Watts® Home?

Watts® Home is rated higher. Sub averages 4.4 out of 5 from 790 ratings, while Watts® Home averages 4.6 from 4.2K ratings.

### Do Sub or Watts® Home have ads?

Neither Sub nor Watts® Home shows ads.

### Which is updated more often, Sub or Watts® Home?

Sub ships an update every 5 weeks, and Watts® Home every 3 months. Most recently, Sub was updated on November 11, 2026 and Watts® Home on November 7, 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.*