Rumuki: Do you tend to store sex tapes on your smartphone? If you do after all that we've read since the camera started coming with every smartphone, then we probably have a solution for you. There's an app that will keep the homemade (or not) sex video clips you store on your device safe.
Currently available only for iOS, Rumukiis a free video-encryption software that promises to protect your secret videos. The app essentially allows you and your partner to use two devices to record a video that can later only be played when both “protagonists” agree. 
Once the video is recorded, it is encrypted using two encryption keys stored on separate phones. One key is for you and the other for your partner in crime. Every time someone wants to play the video, the Rumuki app asks the other party to “grant the playback permission,” i.e. the decryption key. Each permission is valid for only one playback.
The app also has other security features, such as deleting the video. If you don't trust your partner or if something goes wrong in your relationship, the app offers you the option to immediately delete the video.
To make things even more secure, all content, keys, and encrypted video are stored exclusively on your devices. So videos and keys will never be found on third-party servers and the app doesn't keep any copies.
In an effort to gain the trust of the application's users, its developers offer the app's source code for each review, also through the website.
