Opening Doors with Next Generation Technology Imagine the joy of being able to open doors with your Android or iOS smartphone. . Unlocking doors with a physical key or key card is something of the past. No more keys to carry, drop, or rummage for! Forget about taking a day off to wait for your plumber. With a mobile ID stored on your device, just wave it in front of the sensor to let yourself in, or authorize access wherever you are with a digital key code. Yes. The future is here.