This is not a fake Fingerprint Scanner, but a Real Fingerprint Scanner using the phone's camera. It can also be configured to unlock the Screen and/or the Phone at start-up.
Get the free .apk setup package of Medusa Fingerprint Scanner 2.6 and have a look at users' reviews on Droid Informer. The installer takes up 2 MB of disk space and it runs on Android devices 2.3 and above. The antivirus report has confirmed that the app is totally safe for usage. PersephoneApps designed this application that lies within the Entertainment category.
Medusa Fingerprint Scanner has been downloaded and set up by over 50K users and its most recent update was released on Jan 9, 2014. According to the latest data, the app is rated 3.3 on Google Play. Advertisements are a part of this application.
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