Pictura allows secure storing and encoding not only of private photographs in JPG and PNG formats, but also files and documents in PDF, TXT, DOC, XLS and PPT formats. Chosen files can be secured with a password against unauthorized access. If you happen to lose your smartphone, nobody will be able to access your sensitive photographs and documents without knowing the password. Lite version (for free) – a user is allowed to create up to two foldersPremium version ($1.99)