Why should I as a user, believe that you the picture is actually removed from your server? The only true way of knowing it is if everything is open sourced. Or if you can get some kind of a license from some reviewing body (which i dont think exists)
How is this different from snapchat? I can draw something on snapchat and send to my friend or some of the other chat apps which support this already?
Looks cool. I think this is more suited to Instagram than Facebook. Even though Instagram is wildly popular, you still don't get to see as much third party tools like they have for twitter.
Also one question :
Would giving permission to post result in the app making postings without my knowledge?
Been using streaks for few days and so far not impressed. App hardly does anything beyond sending reminders. And even reminders are not particularly motivating. They just say "Did you do this today". Uninstalling.