4.0
96.7K reviews
1M+
Downloads
Content rating
Everyone
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About this app

ONECTA

Always in control, no matter where you are.

Supported Daikin units:
- All connected Altherma Heat Pump and Altherma Gas Boiler units.
- All connected air conditioning units

Register below to the Beta program to already experience new upcoming features.

The ONECTA application can, from any place at any time, control and monitor the status of your heating system and allows you to (*):

Monitor:
- The status of your system:
> Room temperature
> Requested room temperature
> Operation mode
> Fan speed
> Requested domestic hot water tank temperature
- Energy consumption graphs (day, week, month)

Control:
- Operation mode
- Change the requested room temperature
- Change the requested domestic hot water temperature
- Powerful mode (fast heating domestic hot water)

Schedule:
- Schedule the room temperature and operation modes
- Schedule the heating of the domestic hot water tank
- AC Demand control to reduce power consumption during certain moments of the day.
- Enable holiday mode

Voice control:
- Voice control through Amazon Alexa & Google Assistant
- To use these features, you need a smart speaker compatible with Amazon Alexa or Google Assistant.
- You can also use the Amazon voice or Google Assistant apps and use these features on your mobile.
- Supported commands: On/Off, Set/Get room temperature, Increase/Decrease temperature, Set operation mode, …
- Supported languages: English, German, French, Spanish & Italian.
- Extra languages (Google only): Danish, Dutch, Norwegian & Swedish

ONECTA previously known as Daikin Residential Controller

Visit app.daikineurope.com for more details.

(*) Availability of functions is depending on the system type, configuration and operation mode.
App functionality is only available if both the Daikin system and the App are connected to the Internet.
Updated on
Mar 30, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
This app may share these data types with third parties
Files and docs, App activity and 2 others
This app may collect these data types
Location, Personal info and 5 others
Data is encrypted in transit
You can request that data be deleted

Ratings and reviews

4.0
93.7K reviews
Jon W
March 23, 2026
Very poor, not easy to navigate. data can be out of date (especially via API). extremely limited automation (just 1 schedule for hot water and 3 for heating with only 6 changes per day - ridiculous!). turning 'off' does little as the system still heats the house but you have no control. minimum temp you can set is 15C so you can't turn the system to really low when going on holiday (holiday mode still seems to heat to 12C). it works but that's as far as I would go.
1 person found this review helpful
Eee PC
March 27, 2026
constantly loses device and reconnecting is flaky at best, or non functional. why can i not just type credentials into the handset and wall unit? the manuals and the user interface are different, and the qr stickers don't actually contain the ap password - it's hardcoded into the wall unit (!!). it also seems to have wiped ask my usage data too. all i want to do is set a schedule, it should be that the wall unit is in charge, and easy to adjust.
James
April 13, 2026
Ive been using the Onecta app now for over 2 years, I have 2 AC units and 1 air purifier thats controlled by it. its really very good and I love it, being able to control everything remotely is just fantastic, and can also save you money if you accidentally leave something switching on. just log on the app and check everything