Reviews of Ember

By: Ember Technologies Inc. App

List of user reviews and ratings for Ember

Total ratings

1.38 (Rating count: 9,579)

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Review summary

Users largely rate the Ember Android app as unreliable: it often disconnects, struggles to pair, and requires re-login or repeated re-pairing. Updates frequently worsen these issues, occasionally causing crashes. While the mug hardware is liked, the app experience is the primary blocker. When a stable connection is achieved, control over temperature works as intended. Overall sentiment is frustrated, with sign-in friction and persistent connectivity problems dominating feedback.

Pros

When the app connects to the mug, it controls temperature and settings as intended.
Some users report workable behavior when a stable connection is achieved.
The Ember mug hardware is well-liked, providing a good base experience if the app works.

Cons

Frequent disconnects and unstable Bluetooth connections between mug and app.
Repeated pairing failures and the need to re-pair the mug with almost every use.
Login/sign-in is cumbersome (multiple emails/codes) and users are often logged out.
Software updates frequently cause issues, breaking pairing or causing crashes.
App behavior like calling home in the background and unnecessary connectivity chatter can be problematic.

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User Reviews

Recent rating average: 1.90

All time rating average: 1.38

Upgrade to see all 191 reviews

78% (149)

Date	Author	Comment
2026-07-18	Gl*****	more hassle than it's worth. constant resetting, constantly failing to recognize the weight of the coffee and showing as empty, the prongs on the base unit keep breaking.
more hassle than it's worth. constant resetting, constantly failing to recognize the weight of the coffee and showing as empty, the prongs on the base unit keep breaking.
2026-07-17	Ki*****	Constantly disconnecting. taked with Ember CS, completely useless. Ember App Constantly CRASHES, total BS.
Constantly disconnecting. taked with Ember CS, completely useless. Ember App Constantly CRASHES, total BS.
2026-07-16	Ke*****	Great mug and app been using for 2 years with no issues. I'm honestly surprised I had no issues haha
Great mug and app been using for 2 years with no issues. I'm honestly surprised I had no issues haha
2026-07-14	Ca*****	the app does not load at all even after uninstalling and reinstalling - would give it 0 stars if possible....and this is the only way to control the product
the app does not load at all even after uninstalling and reinstalling - would give it 0 stars if possible....and this is the only way to control the product
2026-07-14	Bo*****	hot coffee
hot coffee
2026-07-12	li*****	This app is annoying. It doesn't stay connected to the paired device. Constant repairing or even startingvall over is the norm. Too bad the app doesn't work as well as its mug. Very disappointing.
This app is annoying. It doesn't stay connected to the paired device. Constant repairing or even startingvall over is the norm. Too bad the app doesn't work as well as its mug. Very disappointing.
2026-07-07	wi*****	worthless app that cannot connect to a cup that is literally on top of the phone.
worthless app that cannot connect to a cup that is literally on top of the phone.
2026-07-06	De*****	Fix your app! I paid for a $100 mug just for the app to be a buggy mess and not heat my freakin' coffee correctly (which is kinda the sole purpose, isn't it?) Maybe you guys should start thinking about lowering the prices on your mugs as well.
Fix your app! I paid for a $100 mug just for the app to be a buggy mess and not heat my freakin' coffee correctly (which is kinda the sole purpose, isn't it?) Maybe you guys should start thinking about lowering the prices on your mugs as well.
2026-07-06	Jo*****	App barely works and often cannot pair with my mug, making me reset and repair.
App barely works and often cannot pair with my mug, making me reset and repair.
2026-07-03	De*****	The cup is great. Thnx but.. almost every time I have do pairing. very annoying. I would love to just enjoy my hot drink not play the IT guy every time. pair, unpaid, uninstall, reinstall. the mug is not cheap, who will pay me for the mug administration?
The cup is great. Thnx but.. almost every time I have do pairing. very annoying. I would love to just enjoy my hot drink not play the IT guy every time. pair, unpaid, uninstall, reinstall. the mug is not cheap, who will pay me for the mug administration?