The trial
You start with 14 days free and 1 GB of storage, without payment details. After the trial you can still view and download everything; to add anything, you choose a plan.
Choosing a plan
On your subscription page you choose a plan and pay the first month with iDEAL. After that you receive an invoice by email with a payment link every month. You can cancel any month.
Storage
Every plan comes with an amount of storage. The sidebar shows how much you use; the bin counts too.
Redeeming a code
If you've been given a code, enter it on your subscription page under Code. A code can be used once.
Cancelling
You cancel with a button on your subscription page. Your plan runs until the end of the month you paid for. After that you can still view and download everything for 90 days; then your account is deleted. You'll receive two messages beforehand.