I like the concept a lot. I feel like it needs a bit more polish but I can't put my finger on what it is. Maybe there is too much color or the interface is too busy. Try adding some padding.
We wanted a playful look for the app, hence its colorfulness. Maybe we took it a little too far?
If you used a much more toned-down image of some friends having fun together, maybe simply holding their phones by their sides and laughing at something, it would make me feel more at ease that this app knows its place in my world.
There is no link to any plugin store from your website.