Downloadable mobile applications for protecting users' privacy with pattern, fingerprint, password lock; Downloadable mobile applications for locking photos, videos and Apps by just one click; Downloadable mobile applications for hiding photos, videos and Apps; Downloadable mobile applications for encrypting photo gallery; Downloadable mobile applications for locking photos, videos and Apps by pattern lock; Downloadable mobile applications for locking photos, videos and Apps by invisible pattern draw path; Downloadable mobile applications for locking photos, videos and Apps by fingerprint lock; Downloadable mobile applications for taking pictures of any intruders that enter an incorrect password; Downloadable mobile applications for detecting and locking newly installed Apps; Downloadable mobile applications for customizing the re-lock time at specified times