Dear all,
please explain how to make the payment to finally start studying. I inserted the card number, and that was it..
And can I pay for only a month to see whether it works for me?

Hi Kamilla, welcome to Skritter!

You've got two weeks to try out the program before you're charged for the first time. After that you get charged once a month. It's all automatic.

If you decide Skritter isn't for you, you can unsubscribe at any time from the account page. If you unsubscribe before your trial runs out on the 20th (14 days after you signed up), you won't be charged anything. If you let yourself get charged on the 20th, you can then unsubscribe and you'll still get the month of study that you paid for. So you can unsubscribe on the 21st and continue to use all of its features until February 20th.