The app tells you to invite friends in order to see your incoming messages; when you've done that nothing changes, you are still obliged to pay the full membership (39.99 /month) and the payment can be done by mistake, because they don't ask you for a double confirmation and the terms are not clear. Once you unblock your account you'll notice that this is a complete waste of money due to the limited number of members (or maybe you're lucky and find your soulmate among 5 people fitting your profile). The customer care is ridiculous, they don't answer questions and at a certain point they stop answering.