SnapHack is described as 'sidekick for the Snapchat app that lets you:' and is a Photo Sharing App in the Photos & Graphics category. There are four alternatives to SnapHack for a variety of platforms, including Android, iPhone, Android Tablet, iPad and Windows Phone. The best alternative is Snapchat. It's not free, so if you're looking for a free alternative, you could try StealthChat or Frim.
Snapchat is the fastest way to share a moment with friends. You control how long your friends can view your message – simply set the timer up to ten seconds and send. They’ll have that long to view your message and then it disappears forever.
StealthChat is a new secure app for calling and chatting with your friends and partners. With advanced encryption technology, your phone calls and chat messages are private. All calls and messages are free over cellular and Wi-Fi connections.