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With SnapMe running inside phone, you can record all user generated events as series of screen-shots. All recorded snaps can be viewed along with date and time information, showing time of capturing particular snap. Thus as a cell phone user you can actually check what others does with your cell phone in your absence. In short 'SnapMe' acts as a detective of your mobile phone.
Buy it (http://store.ovi.com/content/207793/reviews)