I have a Public/free Snapchat account now, && everytime I do post a photo or video of myself, I end up putting my website name on it, in case, because I know there's still people who will take photos of their phones, etc && do it anyways, so at least it can track back to me. I don't know if Snapchat really got rid of the third party apps for Android, I know they mostly did for iOS from the store, but I hear if you are jailbroken you can download stuff, && I know that last time I checked one of the most popular ones for Android wasn't available from the market, but you could still download it onto your phone.
It's also one of the reasons I will edit a photo in Snapchat, then save it, then upload it. Rather than counting on the stickers && drawing over the photo/video to protect personal info, etc. I'm terrified of a glitch, or a third party program being able to wipe that shit out.