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Control your A24 radios on your Wi-Fi network, set up your devices over Bluetooth, operate your A24 lamps and call your A24 telephones from your Android tablet or phone.
The Android app is not distributed through the Play Store: it is reserved for people who own an Atelier N°24 piece. You install it directly from this page.
Looking for the iPhone version? See the app overview.
.apk file – Android 8.0 or later
To protect your device, Android only allows apps from the Play Store by default. As ours isn’t there, two warnings will appear during installation. They are normal – here’s how to respond.
Tap the button above. Your browser may ask you to confirm the download: accept.
Open the downloaded file. Android shows: ‘For your security, your phone is not allowed to install unknown apps from this source.’
Tap Settings, turn on Allow from this source, then go back. This permission only applies to the browser you are using, and you can withdraw it afterwards.
Android then shows: ‘App not verified’ or ‘Play Protect doesn’t recognise this app’s developer’.
Tap More details, then Install anyway. This message simply means the app doesn’t come from the Play Store – it doesn’t indicate a problem with the app.
You can try the app without any hardware using demo mode, in the settings.
Apps installed outside the Play Store don’t update themselves. When a new version is available, come back to this page and reinstall the app over the old one: your devices, spaces and settings are kept.
You never need to uninstall the previous version.
Visit our support page, which covers the most common issues, or write to us:
atelier@numero24.ch
Our privacy policy explains what data the app processes.
Last updated: 19.07.2026