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 1 hour.
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.