The login process is fairly simple. You just have to give your email address, we don't ask for any password.
First of all, go to https://app.skriv.com with any modern web navigator:
Enter your email address in the first field, then press the “Email me a link to sign in” button.
A confirmation should be displayed:
You will receive an email with a link. Click on this link; it will open Skriv in a new tab, and you'll be loged in. The link works one time and is valid for 15 minutes.
If the link doesn't work, you can copy the token given in the email, and paste it in the second field of the signin page.