Secret app - I’m a bit obsessed.
Do you remember Post Secret, where people send in postcards with a secret written on it and they get published on the Post Secret website? Secret app is basically the same thing - you post comments, thoughts, ideas, secrets for anyone to read but your identity remains secret.
Without knowing who posted it, if you're in some way "friends" with that person, you can also comment on the post, the continued anonymity of peoples thoughts leading to some interesting threads.
I only discovered this app this morning and I'm already a bit obsessed with it - the posts people have written range from the bizarre to the humorous, cute to down-right disturbing.
You can download it on Android and iOS, also worth following is their Instagram account.