Your thermostat, which thinks and adapts for you. Easy remote control. Comfortable and efficient.

What’s New

Version 29.0.0

It has been a while, but a fresh update of the ATAG One app is available!
In the past months we have implemented several improvements, in addition to some bug fixes, language error improvements & security updates.

What's new?
- The app now notifies it when the thermostat cannot be reached by our server
- New thermostats can also be connected to the internet after logging in
- Compatibility of newer smartphones (Android) is improved
- A light reorganization of functionalities on the login screen is done

Ratings and Reviews

1.9 out of 5
14 Ratings

14 Ratings

uhc2018! ,


This is an awful app to control my boiler! It doesn’t make any sense at all and must have been designed by a man! I cannot put my boiler on for just an hour, if I don’t have my phone for whatever reason I can not control the boiler as the panel is just as bad as the app! All I want to do is turn my boiler on and off at specific times. Not fiddle around with bars and temperatures! I’d quite happily have my old 1970 odd boiler back if I could!! I would not recommend at all

bobafettreturns ,

Terrible app, terrible service

Control from both app and wall controller have no control over the boiler, try to fire it up but it doesn’t respond. App barely ever loads, hangs, crashes, all in all absolutely awful. Tried to get answers from the company who just do a reset on the wall panel and say someone will call you back, and they don’t. Massive waste of money

Helen_J ,

Needs improvement

Find that the app doesn’t really make it easy for you to control the heating. Set to manual mode and 16 degrees overnight, yet wake up sweltering at 5am as the boiler is on and trying to get to 22 degrees? Why?

Using the the sliding buttons to set a schedule takes forever and is a silly way to have to do it, it’s so hard to land the button where you want it on a smart phone or iPad.

Often the app won’t connect and takes too long to load. ATAG support not great on email either.

The boiler is good, but this app is awful and needs urgent improvement


ATAG Verwarming Nederland B.V.
18 MB

Requires iOS 8.0 or later. Compatible with iPhone, iPad and iPod touch.



Age Rating
Rated 4+
© 2017 Applied Micro Electronics AME B.V.


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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