SmarterKey is changing the property rental industry by allowing property owners to remotely unlock doors via a phone call, eliminating the need for physical keys. The service uses Twilio's SMS capabilities to authenticate and authorize access to properties. With its smart hub, property owners can control various aspects of their rentals, including lighting, temperature, energy usage, and more, all from their smartphones or computers. SmarterKey aims to expand its platform globally, with the goal of providing a convenient and efficient solution for both property owners and renters.