Review and Ratings:
Concept/Innovative : 0.8 - This app allows users to use their iOS device as a key of their computer. User can lock or unlock computer from their iOS device using this app.
Usability: 0.6 - This app is made for the advanced users. Not very difficult to understand though!
Functionality/Correctness : 1.0 - No issues found
User Interface : 0.8 - User interface very good.
Performance : 0.8 - Performance is as expected! User need to download respective software for mac as well to synchronize their iOS device. Software is available on the official website of the app.