NemID is your personal secure login for using public self service solutions, for reading your Digital Post, online banking etc.
With the NemID app you logon to self service solutions, your digital postbox, online banking etc. using NemID on your phone or tablet.
Almost all post from public authorities is sent digitally and is called Digital Post. You may also choose to receive your post from e.g. your power supplier, your insurance company etc. as digital post. You receive digital post once you have a CPR number.