# Ember vs Flair

The clearest difference is ads: Ember at none against Flair's shown. Ember also leads on monetization model (free vs free with in-app purchases) and ratings volume (7.4K vs 125). Flair's advantage is review sentiment (42% vs 18%) and device support (3 vs 1). On price, rating, update cadence 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.

On the App Store both sit at effectively the same score — 3.3 for Ember against 3.3 for Flair. That said, the two scores are not equally well evidenced: Ember has 7.4K ratings behind it against 125, so its average is the more settled of the two. Written reviews are what separate them: 18% of Ember's written reviews are positive against 42% of Flair's.

Ember ships an update every 2 months, Flair every 6 weeks. The most recent releases landed on September 23, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Ember | Flair |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.3 (7.4K ratings)](https://appshunter.io/ios/app/ember-temperature-control/id1147470931/reviews) | [3.3 (125 ratings)](https://appshunter.io/ios/app/flair-climate-control/id1159409932/reviews) |
| Number of ratings | **7.4K** | 125 |
| Positive reviews | 18.0% of reviews | **42.5% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 6 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 63 MB | 32 MB |
| Requires iOS | 16.6 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Ember Technologies Inc.](https://appshunter.io/developer/1063861447) | [Standard Euler](https://appshunter.io/developer/1159409931) |

## 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


### Flair

[App page](https://appshunter.io/ios/app/flair-climate-control/id1159409932)

Control your home's heating and cooling room by room from your smartphone. Create custom schedules, save energy with geofencing, and integrate with smart home devices for ultimate comfort and efficiency.

**Highlights:** Room-by-room temperature control, Customizable schedules, Geofencing for energy saving, Smart home device integration, Remote access and control, Share access with family

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

**In-app purchases:** none

**What reviewers like**

- ✅ Solves temperature imbalance issues effectively
- 🔧 Easy hardware installation
- 📱 Useful scheduling and geofencing features
- 🏠 Seamless integration with Ecobee systems
- 💰 Cost-effective alternative to zoned HVAC

**What reviewers complain about**

- 🐛 App is buggy and unreliable
- 🐌 Slow app response times and updates
- 😕 Poor user interface design
- 🔌 Requires cloud connectivity for all functions
- 🔐 Installer code restrictions limit user control

**Reported bugs**

- App loses API connection and requires reconfiguration
- Thermostat puts out max heat despite room being above setpoint
- Vents don't respond to app commands inconsistently
- App splash screen overlay blocks interface in portrait mode
- Back button unresponsive on iPhone 14/15

**Requested features**

- Dark mode for app interface
- Dual setpoint control (separate heat/cool temperatures)
- HomeKit integration
- Local control without cloud dependency
- Manual mode scheduling


## Frequently asked questions

### Is Ember free?

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

### Is Flair free?

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

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

Ember and Flair are both rated 3.3 out of 5 on the App Store, from 7.4K and 125 ratings respectively.

### Do Ember or Flair have ads?

Flair shows ads; Ember does not.

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

Ember ships an update every 2 months, and Flair every 6 weeks. Most recently, Ember was updated on September 23, 2026 and Flair on September 19, 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.*