Virtual Stalking?

The idea is good but the business model is rubbish.
Basically, you can send a Charm (you get 10 free and then it costs money) to someone that you like to let them know you exist. However, if they ignore your Charm then their profile is reset so it appears as if you never sent one. The maker of this app recommends that you send a new Charm to people who have ignored you to remind them that you exist. There is no way of knowing whether or not you have send a Charm to someone who has ignored it.
The result is that unless you have a magic memory and can remember the people to whom you have sent Charms you end up unwittingly sending repeat Charms to the same person. Its a waste of Charms (ie money) and is probably very annoying for the recipient.
Initially I bought some Charms because I think the idea of connecting with people in the neighbourhood is a good idea. But once I realised Id sent multiple Charms to the same person (who was ignoring them) I asked the maker to give me a way to know whether or not Id sent a Charm or not. The maker ignored my question.

rtxcd about happn: Dating, Chat & Meet, v7.7