ShakeShotSelfDefense is a camera software. It is designed for the purpose of self-defense. You can send mms, Email with photo attachment and your current GPS location. You can take picture without screen on. You may ask how. The answer is that the software has a feature of taking photos by motions. There are two sorts of motions that we use to taking photos. You have the option of sending out smaller photos than the originals. It works very good with Galaxy Nexus Android version 4.2.2. You can use it expressively or silently. If you have any question or comment, hope you send us a message.