# Ember vs Bold Believers COC

The clearest difference is update cadence: Ember at every 2 months against Bold Believers COC's every 28 months. Bold Believers COC's advantage is device support (3 vs 1) and iOS requirement (10.0 vs 16.6). On price 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.

Ember ships an update every 2 months, Bold Believers COC every 28 months. The most recent releases landed on November 10, 2026 and October 26, 2026 respectively.

## The numbers

| Metric | Ember | Bold Believers COC |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.3 (7.5K ratings)](https://appshunter.io/ios/app/ember-temperature-control/id1147470931/reviews)** | — |
| Number of ratings | **7.5K** | — |
| Positive reviews | 17.6% of reviews | — |
| In-app purchases | No | No |
| Ads | No | — |
| Update frequency | **Every 2 months** | Every 28 months |
| Monetization | Free | — |
| Size | 63 MB | 57 MB |
| Requires iOS | 16.6 | **10.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 12+ |
| Developer | [Ember Technologies Inc.](https://appshunter.io/developer/1063861447) | [Northwest Church of Christ, Inc.](https://appshunter.io/developer/1457083646) |

## 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


### Bold Believers COC

[App page](https://appshunter.io/ios/app/bold-believers-coc/id1457083647)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Ember free?

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

### Is Bold Believers COC free?

Bold Believers COC is free to download, with no in-app purchases.

### Which is updated more often, Ember or Bold Believers COC?

Ember ships an update every 2 months, and Bold Believers COC every 28 months. Most recently, Ember was updated on November 10, 2026 and Bold Believers COC on October 26, 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.*