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This is fun just to show off to friends, or if ur bored... sometimes it actually might get it right the only annoying thing is when you open it it tells you to put ur finger down, no biggie. But as u put ur finger down, an add pops up. Good thing, though; if u use ur other finger to tap somewhere else on the screen it wont open up the ad thing. 

QuanThompson about Fingerprint LOVE mood scanner Lite