# Ember vs Knocki

The clearest difference is ratings volume: Ember at 7.4K against Knocki's 9. Knocki's advantage is review sentiment (31% vs 18%) and device support (3 vs 1). On price, rating, 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.

On the App Store both sit at effectively the same score — 3.3 for Ember against 3.3 for Knocki. That said, the two scores are not equally well evidenced: Ember has 7.4K ratings behind it against 9, 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 31% of Knocki's.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 23, 2026 and September 20, 2026 respectively.

## The numbers

| Metric | Ember | Knocki |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.3 (7.4K ratings)](https://appshunter.io/ios/app/ember-temperature-control/id1147470931/reviews) | [3.3 (9 ratings)](https://appshunter.io/ios/app/knocki/id1238395440/reviews) |
| Number of ratings | **7.4K** | 9 |
| Positive reviews | 18.0% of reviews | **30.8% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free | Free |
| Size | 63 MB | 74 MB |
| Requires iOS | 16.6 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Ember Technologies Inc.](https://appshunter.io/developer/1063861447) | [Haptic, Inc.](https://appshunter.io/developer/1188043635) |

## 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


### Knocki

[App page](https://appshunter.io/ios/app/knocki/id1238395440)

Turn any surface into a smart home controller. Create custom tap gestures to activate lights, music, and other connected devices. Works with popular smart home platforms.

**Highlights:** Transform surfaces into touch controls, Control smart home devices, Create custom tap gestures, Works with Alexa, IFTTT, Philips Hue, and more, Trigger task lists with gestures, Works via WiFi independently of phone

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Ember free?

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

### Is Knocki free?

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

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

Ember and Knocki are both rated 3.3 out of 5 on the App Store, from 7.4K and 9 ratings respectively.

### Do Ember or Knocki have ads?

Neither Ember nor Knocki shows ads.

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

Ember ships an update every 2 months, and Knocki every 2 months. Most recently, Ember was updated on September 23, 2026 and Knocki 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.*