Snapchat is social natworking site. Where you can connent with your friends and gives the daily life update but this app is very poor. App concept is mixture of facebook and instagram and this app is very usefull for photo fillters only. Snapchat provids nothing new. Design of the app is like poor instgram. Design is very poor and horrible it takes lots of time to load and video buffer so much.
If you want photo filters app snapchat is very good but if you want app for social networking app use Facebook and instagram instead of snapchat.