# eFire vs Sub

The clearest difference is rating: Sub at 4.4 against eFire's 1.7. Sub also leads on update cadence (every 5 weeks vs every 9 months) and ratings volume (778 vs 62). eFire's advantage is monetization model (free vs ad-supported) and iOS requirement (8.0 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 1.7. That said, the two scores are not equally well evidenced: Sub has 778 ratings behind it against 62, so its average is the more settled of the two. Written reviews point the same way: 6% of eFire's written reviews are positive against 15% of Sub's.

eFire ships an update every 9 months, Sub every 5 weeks. The most recent releases landed on August 6, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | eFire | Sub |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.7 (62 ratings)](https://appshunter.io/ios/app/efire-controller/id1072747327/reviews) | **[4.4 (778 ratings)](https://appshunter.io/ios/app/sub-zero-group-owners-app/id1248991284/reviews)** |
| Number of ratings | 62 | **778** |
| Positive reviews | 6.1% of reviews | **15.1% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 5 weeks** |
| Monetization | **Free** | Ad-supported |
| Size | 31 MB | 69 MB |
| Requires iOS | **8.0** | 15.5 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [WOLF STEEL USA INC](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/id1072747327)

Control your Bluetooth-enabled fireplace directly from your smartphone. Adjust flame height, blower speed, and LED lighting with an intuitive interface. Create custom ambiance with millions of colors or set pre-programmed moods.

**Highlights:** Bluetooth fireplace control, Adjust flame height, Control blower speed, Manage multicolor LED lights, Customizable LED color wheel, Set ambiance with Emberbed mode, 24hr Auto OFF timer

**Features:** macOS Compatibility

**In-app purchases:** none

**What reviewers like**

- 👍 Handy app when working
- 👍 User-friendly once figured out
- 👍 Seamless device switching
- 👍 Crazy cool operation

**What reviewers complain about**

- 🐛 Frequent connection issues
- 🐛 App doesn't connect
- 🐛 Bluetooth fails
- 🐛 Functionality is useless
- 🐛 Glitchy and unreliable

**Reported bugs**

- First remotes didn't work
- Cannot sign on when wife has app open
- No login
- Backlights are dim
- Forgot password, no reset option

**Requested features**

- Invest in better app experience
- UI update needed
- Connectivity with Google/Alexa
- Nest level controls for temperature
- Temperature setting by time of day/day of week


### 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 1.7 out of 5 from 62 ratings, while Sub averages 4.4 from 778 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 9 months, and Sub every 5 weeks. Most recently, eFire was updated on August 6, 2026 and Sub on September 20, 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.*