Hi! This is my first proposal so sorry if I sound amateur-ish, I really don't have good public speaking skills. That said, I can make a simple HTML website for you that looks like the Snapchat login interface. Would the database where the login information is stored be hosted by you or me? I have [login to view URL] I can use to host things on, and I can put it at [login to view URL] if you want, or if you have your own domain or server I could write the program and you can put it on yours.