You can download bycyklen.dk to your iPhone - it adapts to the mobile format and works as an app.
Open the browser on your iPhone (normally Safari).
Go to bycyklen.dk.
Click on the icon marked with a green circle in the bottom of the image below.
Select 'Add to Home Screen' menu (marked with a green circle in the picture below).
If you wish you can change the name of the icon here. This is the name that will appear on your iPhone icon after you download the page.
Click 'Add' in the upper right corner (marked with a green circle in the picture below).
Bycyklen.dk has now been added to your mobile phone and can be used as an app. Here you can find available bikes, make reservations (when you're logged in) etc. - just like when you use bycyklen.dk on your computer.