# Sub vs GreenTech Connect

The clearest difference is update cadence: Sub at every 5 weeks against GreenTech Connect's every 16 months. Sub also leads on ratings volume (786 vs 13) and review sentiment (15% vs 0%). GreenTech Connect's advantage is monetization model (free vs ad-supported) and iOS requirement (11.0 vs 15.5). 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.

GreenTech Connect holds the better App Store score, 4.5 against 4.4. That said, the two scores are not equally well evidenced: Sub has 786 ratings behind it against 13, so its average is the more settled of the two. Written reviews complicate that: 15% of Sub's written reviews are positive against 0% of GreenTech Connect's, so the app with the better star average is not the one people write more warmly about.

Sub ships an update every 5 weeks, GreenTech Connect every 16 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | Sub | GreenTech Connect |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (786 ratings)](https://appshunter.io/ios/app/sub-zero-group-owners-app/id1248991284/reviews) | **[4.5 (13 ratings)](https://appshunter.io/ios/app/greentech-connect/id1568302603/reviews)** |
| Number of ratings | **786** | 13 |
| Positive reviews | **14.7% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 16 months |
| Monetization | Ad-supported | **Free** |
| Size | 69 MB | 175 MB |
| Requires iOS | 15.5 | **11.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sub-Zero and Wolf](https://appshunter.io/developer/983988992) | [GreenTech Environmental, LLC](https://appshunter.io/developer/1568302605) |

## 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


### GreenTech Connect

[App page](https://appshunter.io/ios/app/greentech-connect/id1568302603)

Control your GreenTech products remotely. Adjust settings, monitor air quality, and manage component life from your smartphone. Schedule features like Night Mode for optimal comfort.

**Highlights:** Remote product control, Monitor air quality, Adjust purification levels, Manage component life, Schedule Night Mode, Receive product notifications

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

**In-app purchases:** none


## Frequently asked questions

### Is Sub free?

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

### Is GreenTech Connect free?

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

### Which has better reviews, Sub or GreenTech Connect?

GreenTech Connect is rated higher. Sub averages 4.4 out of 5 from 786 ratings, while GreenTech Connect averages 4.5 from 13 ratings.

### Do Sub or GreenTech Connect have ads?

Neither Sub nor GreenTech Connect shows ads.

### Which is updated more often, Sub or GreenTech Connect?

Sub ships an update every 5 weeks, and GreenTech Connect every 16 months. Most recently, Sub was updated on October 24, 2026 and GreenTech Connect 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.*