Comparison

Ember vs Fellow

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Ember

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
Read full description

At Ember®, we use temperature control to change the world in ordinary (and extraordinary) ways. With an Ember Temperature Control Smart Mug and the Ember app, you can transform your mornings by making hot beverages set to your chosen temperature an everyday reality. Our redesigned Ember app is simple, easy to use, and customizable. Whether you are a first-time user or a long-time customer, get ready for a whole new temperature control experience. The Ember app seamlessly pairs with your Ember products to precisely adjust your favorite hot drinks to your preferred drinking temperature, saves temperature presets, offers recipes, sends notifications when your desired drinking temperature has been reached, and more. Ember App Features: - Control the temperature of your beverage down to the degree - Use your previous temperature setting for a set-it-and-forget-it beverage experience - Manage unlimited paired mugs on an all-new Ember home screen - Find recipes and blogs you can save and share with friends and family in the new Explore section - Receive notifications when your preferred temperature has been reached, or your battery is low - Customize presets for multiple beverages and engage timers - Personalize your mugs with names and adjust the color of the smart LED - Easily switch between °C/°F and control sounds and haptic feedback in the redesigned Account section - Access Ember x Health with Apple Health

About

Fellow

Enhance your coffee brewing experience by connecting your smart coffee maker. Create custom brew profiles, schedule brews, and fine-tune every variable for perfect results. Access educational content to master your espresso craft.

Highlights
  • Create custom brew profiles
  • Schedule brews in advance
  • Fine-tune brewing variables
  • Access guided educational content
  • Improve espresso technique
Read full description

Connect your Fellow Aiden or Espresso Series 1 to unlock the full experience and stay up to date with the latest features. Aiden - Brew exceptional coffee with precision and ease. Create, edit, and share custom brew profiles Schedule brews in advance Fine-tune every variable for perfect results Combining precision, control, and speed, Aiden delivers pour-over quality coffee at the press of a button. Espresso Series 1 - Master your espresso craft. Access guided educational content Learn how to dial in your machine Improve your technique and consistency Profile syncing and Drops for Espresso Series 1 coming soon.

Screenshots

Ember4 screens
Fellow4 screens

Verdict

The call

The clearest difference is rating: Ember at 3.3 against Fellow's 2.0. Ember also leads on ratings volume (7.4K vs 55). Fellow's advantage is update cadence (every 4 weeks vs every 2 months). On price, review sentiment, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

Ember holds the better App Store score, 3.3 against 2.0. That said, the two scores are not equally well evidenced: Ember has 7.4K ratings behind it against 55, 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 10% of Fellow's.

UpkeepUpdate frequency

Ember ships an update every 2 months, Fellow every 4 weeks. The most recent releases landed on September 23, 2026 and September 24, 2026 respectively.

Scorecard3 real differences · 7 level
Ember versus Fellow: the parameters behind the verdict, then further details
ParameterEmberFellow
PriceFreeFree
Rating3.3 (7.4K ratings) — better2.0 (55 ratings)
Positive reviews18.0% of reviews — better10.2% of reviews
Number of ratings7.4K — better55
Update frequencyEvery 2 monthsEvery 4 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhoneiPhone, iPod — better
Requires iOS16.615.1 — better
Further details — not scored
Size63 MB123 MB
Age rating4+4+
DeveloperEmber Technologies Inc.Fellow

Customer experience

Ember

All ratings7,424 ratings
Positive54.6%
Neutral4.8%
Negative40.6%
Written reviews1,289 reviews
Positive18.0%
Neutral8.3%
Negative73.7%

Fellow

All ratings55 ratings
Positive21.8%
Neutral5.5%
Negative72.7%
Written reviews236 reviews
Positive10.2%
Neutral8.1%
Negative81.8%

User reviews

Ember

From 7.4K App Store ratings

What we love

  • ⭐ 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

Room to improve

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

Fellow

From 55 App Store ratings

What we love

  • 👍 Seamless app pairing
  • ✅ Firmware updates work well
  • 🔍 Helpful profile management

Room to improve

  • 🐛 Connectivity issues
  • 🤔 Limited app functionality
  • 😕 Usability concerns
  • ⏱️ Frequent sign-outs

Bugs and requests

Ember

Reported bugs

5 issues
  • 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

5 requests
  • 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

Fellow

Reported bugs

3 issues
  • App unable to connect to WiFi
  • Bluetooth pairing problems
  • Inconsistent device visibility

Requested features

3 requests
  • Ability to brew by grams of coffee
  • Scheduling and remote start features
  • Custom recipe input and management

In-app purchases

None

Ember

No in-app purchases

None

Fellow

No in-app purchases

Questions

Is Ember free?
Ember is free to download, with no in-app purchases.
Is Fellow free?
Fellow is free to download, with no in-app purchases.
Which has better reviews, Ember or Fellow?
Ember is rated higher. Ember averages 3.3 out of 5 from 7.4K ratings, while Fellow averages 2.0 from 55 ratings.
Do Ember or Fellow have ads?
Neither Ember nor Fellow shows ads.
Which is updated more often, Ember or Fellow?
Ember ships an update every 2 months, and Fellow every 4 weeks. Most recently, Ember was updated on September 23, 2026 and Fellow on September 24, 2026.

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