Get started with the 4f Checker
1. Buy subscription for 4f Studio or 4f Notes Online
4f Checker is an add-on for the 4f Studio or 4f Notes Onlinen so you need to have an active subscription either for 4f Studio or 4f Notes Online. You can buy the subcription from the webshop.
2. Buy checking quota
When you register for the 4f Studio or the 4f Notes Online, we give you a trial package that includes 30 or 20 checks. After the trial package you can buy more checks from the webshop.