Frequently asked questions
Questions and answers about S!RENEN.
How does S!RENEN work?
S!RENEN is based on a technology called cell broadcast. It works a little like a radio transmission: A warning is broadcast through phone masts to phones in a danger area.
It is an app? Do I need to download anything or sign up?
No, S!RENEN is not an app and you do not need to sign up. S!RENEN works on most smartphones: Apple iPhone 8 or newer with iOS 16.4 or newer. Android phones need to run Android 11 or newer. S!RENEN work regardless of which service provider you have and whether or not you have a Danish sim card.
How will I be warned if I have a phone that is not compatible with S!RENEN?
S!RENEN is one of several warning channels. Other warning channels include the physical warning sirens and public warnings broadcast by DR and TV 2.
Can the authorities track my location or see information about me and me phone?
No. S!RENEN is a one-way system - sort of like a radio transmission.
Will my kids also receive warnings on their phone?
Yes, if they are in a danger area and have a compatible phone. You may consider talking to your children about warnings via S!RENEN and other emergency precautions.