# eFire vs Sub

The clearest difference is rating: Sub at 4.4 against eFire's 1.0. Sub also leads on update cadence (every 5 weeks vs every 8 months) and ratings volume (788 vs 2). eFire's advantage is monetization model (free vs ad-supported) and iOS requirement (8.0 vs 15.5). On price, 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.

Sub holds the better App Store score, 4.4 against 1.0. That said, the two scores are not equally well evidenced: Sub has 788 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 0% of eFire's written reviews are positive against 15% of Sub's.

eFire ships an update every 8 months, Sub every 5 weeks. The most recent releases landed on November 2, 2026 and November 6, 2026 respectively.

## The numbers

| Metric | eFire | Sub |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (2 ratings)](https://appshunter.io/ios/app/efire-controller-hd/id1113456506/reviews) | **[4.4 (788 ratings)](https://appshunter.io/ios/app/sub-zero-group-owners-app/id1248991284/reviews)** |
| Number of ratings | 2 | **788** |
| Positive reviews | 0.0% of reviews | **14.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 8 months | **Every 5 weeks** |
| Monetization | **Free** | Ad-supported |
| Size | 61 MB | 69 MB |
| Requires iOS | **8.0** | 15.5 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Napoleon](https://appshunter.io/developer/961217528) | [Sub-Zero and Wolf](https://appshunter.io/developer/983988992) |

## What reviewers say

### eFire

[App page](https://appshunter.io/ios/app/efire-controller-hd/id1113456506)

Control your fireplace remotely with this app. Adjust flame height, blower speed, and LED lighting with an intuitive interface. Create custom ambiance with millions of colors and pre-set modes, all from your smartphone.

**Highlights:** Bluetooth fireplace control, Adjust flame height, Control blower speed, Customize LED lighting, Millions of LED color options, Pre-set ambiance modes, 24hr Auto OFF timer

**Features:** macOS Compatibility

**In-app purchases:** none


### 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


## Frequently asked questions

### Is eFire free?

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

### Is Sub free?

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

### Which has better reviews, eFire or Sub?

Sub is rated higher. eFire averages 1.0 out of 5 from 2 ratings, while Sub averages 4.4 from 788 ratings.

### Do eFire or Sub have ads?

Neither eFire nor Sub shows ads.

### Which is updated more often, eFire or Sub?

eFire ships an update every 8 months, and Sub every 5 weeks. Most recently, eFire was updated on November 2, 2026 and Sub on November 6, 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.*