# Ember vs VFZO

The clearest difference is rating: Ember at 3.3 against VFZO's 1.0. Ember also leads on ratings volume (7.4K vs 6). VFZO's advantage is iOS requirement (12.0 vs 16.6). On price, review sentiment, update cadence and ads there is nothing between them.

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

Ember holds the better App Store score, 3.3 against 1.0. That said, the two scores are not equally well evidenced: Ember has 7.4K ratings behind it against 6, so its average is the more settled of the two. Written reviews point the same way: 18% of Ember's written reviews are positive against 13% of VFZO's.

Ember ships an update every 2 months, VFZO monthly. The most recent releases landed on September 25, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | Ember | VFZO |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.3 (7.4K ratings)](https://appshunter.io/ios/app/ember-temperature-control/id1147470931/reviews)** | [1.0 (6 ratings)](https://appshunter.io/ios/app/vfzo/id6451388917/reviews) |
| Number of ratings | **7.4K** | 6 |
| Positive reviews | **18.0% of reviews** | 12.5% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Monthly** |
| Monetization | Free | Free |
| Size | 63 MB | 20 MB |
| Requires iOS | 16.6 | **12.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Ember Technologies Inc.](https://appshunter.io/developer/1063861447) | [水金 陈](https://appshunter.io/developer/1634599571) |

## What reviewers say

### Ember

[App page](https://appshunter.io/ios/app/ember-temperature-control/id1147470931)

This app allows you to precisely control the temperature of your hot beverages using a smart mug. Customize presets, receive notifications when your drink reaches the perfect temperature, and explore recipes. Personalize your mug settings for an enhanced drinking experience.

**Highlights:** Precise temperature control, Save temperature presets, Beverage recipes and blogs, Customizable notifications, Manage multiple mugs, Personalize mug settings

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

**In-app purchases:** none

**What reviewers like**

- ⭐ Keeps drink at perfect temperature
- 🍵 Great for tea and coffee drinkers
- 🎨 Customizable LED light colors
- 🔋 Decent battery life when used properly
- 🤖 Apple Watch app integration

**What reviewers complain about**

- 🔌 Requires frequent charging and docking
- 🔒 Forced account creation and login
- 🔄 Unreliable Bluetooth connectivity
- 🐛 Buggy app with frequent issues
- 🤔 Confusing app UI and controls

**Reported bugs**

- App frequently logs users out
- Mug disconnects from app randomly
- Firmware update process often fails
- App doesn't always detect liquid in mug
- Presets and settings get lost after updates

**Requested features**

- Battery level indicator on main screen
- Improved Apple Watch app functionality
- Wireless charging option
- Ability to lock temperature settings
- Automatic temperature adjustment based on volume


### VFZO

[App page](https://appshunter.io/ios/app/vfzo/id6451388917)

This app facilitates Bluetooth connections to control and test equipment from a specific brand. It also includes a feature to remind users to stay hydrated throughout the day.

**Highlights:** Bluetooth device connectivity, Equipment control and testing, Water intake reminders, Brand-specific equipment management

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Ember free?

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

### Is VFZO free?

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

### Which has better reviews, Ember or VFZO?

Ember is rated higher. Ember averages 3.3 out of 5 from 7.4K ratings, while VFZO averages 1.0 from 6 ratings.

### Do Ember or VFZO have ads?

Neither Ember nor VFZO shows ads.

### Which is updated more often, Ember or VFZO?

Ember ships an update every 2 months, and VFZO monthly. Most recently, Ember was updated on September 25, 2026 and VFZO on September 14, 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.*