Through user research, we identified customer needs by observing the pain points users experienced while using a lock. After collaborating with the client on research findings, we decided to move forward with these two themes: (1) optimizing an experience for sharing lock access, and (2) utilize bluetooth for proximity unlock capability. We also wanted to create an experience that felt secure and sensitive to privacy so that customers would have a sense of trust in the Master Lock brand. User flows, wireframes and user interface design components were created for the iOS experience and then translated into the Material Design language for their Android application. I specifically lead the Android design charge with the challenge of having an extremely short deadline. Thus, working closely with Android developers was key to success. The application is now available in both the Google Play store and the iTunes store, and is receiving positive ratings, especially around the sharing capabilities.