Each week PSFK features many new and innovative apps. To highlight the some of the best, we’ve compiled a roundup of the most interesting and creative apps written about on the site this past week:

Biometric Technology Lets Users Sign In With Their Heartbeat

The biometric technology in the app essentially allows your heartbeat to be your password to login to different applications and software.

Electric Bicycle Uses Rider’s Smartphone As Its Brain 

Velo is an urban mobility company developing an electric bike that uses iPhone and Android smartphones as the “brain” of the bicycle.

QR Code Gravestones Share Pictures And Biographies Of The Departed

A series of QR codes have been developed that share pictures and biographies of the departed, which can be read with a smartphone or tablet.

AR App Lets Users Scan Moles To See If They Are Cancerous

The skin cancer app uses augmented reality technology to identify any irregularities in the size, shape, color, and border of the mole.

Voice Activated Search Knows Who Is Talking To It 

Users can now speak a word, phrase or number, such as a file name, and the app will instantly pull up any document scanned into their account containing those words.