# Sub vs Kalfire Connected App

The clearest difference is rating: Sub at 4.4 against Kalfire Connected App's 1.0. Sub also leads on ratings volume (786 vs 5) and update cadence (every 5 weeks vs every 4 months). Kalfire Connected App's advantage is monetization model (free vs ad-supported) and iOS requirement (12.0 vs 15.5). 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.

Sub holds the better App Store score, 4.4 against 1.0. That said, the two scores are not equally well evidenced: Sub has 786 ratings behind it against 5, so its average is the more settled of the two.

Sub ships an update every 5 weeks, Kalfire Connected App every 4 months. The most recent releases landed on October 29, 2026 and October 21, 2026 respectively.

## The numbers

| Metric | Sub | Kalfire Connected App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (786 ratings)](https://appshunter.io/ios/app/sub-zero-group-owners-app/id1248991284/reviews)** | [1.0 (5 ratings)](https://appshunter.io/ios/app/kalfire-connected-app/id1608509209/reviews) |
| Number of ratings | **786** | 5 |
| Positive reviews | 14.7% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 weeks** | Every 4 months |
| Monetization | Ad-supported | **Free** |
| Size | 69 MB | 80 MB |
| Requires iOS | 15.5 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sub-Zero and Wolf](https://appshunter.io/developer/983988992) | [Kal-fire B.V.](https://appshunter.io/developer/770728457) |

## 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


### Kalfire Connected App

[App page](https://appshunter.io/ios/app/kalfire-connected-app/id1608509209)

Control your Kalfire fireplaces with this app. Adjust flame height, sound, and create custom moods. Features AI-powered modes for efficient heating and optimal fire experience.

**Highlights:** Fireplace controls (flame height, EmberGlow, KalSound), Customizable Kalfire Moods (up to 10), ComfortPlus mode (AI temperature regulation), Comfort mode (AI gas saving), Thermostat mode (local heating)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Sub free?

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

### Is Kalfire Connected App free?

Kalfire Connected App is free to download, with no in-app purchases.

### Which has better reviews, Sub or Kalfire Connected App?

Sub is rated higher. Sub averages 4.4 out of 5 from 786 ratings, while Kalfire Connected App averages 1.0 from 5 ratings.

### Do Sub or Kalfire Connected App have ads?

Neither Sub nor Kalfire Connected App shows ads.

### Which is updated more often, Sub or Kalfire Connected App?

Sub ships an update every 5 weeks, and Kalfire Connected App every 4 months. Most recently, Sub was updated on October 29, 2026 and Kalfire Connected App on October 21, 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.*