Ever wanted to take pictures without closing the current open application, if yes then, then there is Snappy for you to do this. Snappy is a sophisticated camera app that launches from any app you are on without having to exit your currently running application. The best thing about Snappy is that it launches very fast, unlike your default Camera app, and if you compare that to the five to six seconds it takes to exit a running application and launch the native camera app.
You can also access Snappy from the lock screen. At the same time, you can also get Snappy from any screen on the iPhone by just double tapping the home button. Snappy is also compatible with SnapTap that means that you can take Photos with volume buttons.
Overall Snappy is cool app for them who never wants to miss a photo opportunity again!
Snappy is available on cydia under modmyi repo for $1.99.