Barrier Lifter simplifies how you control gates and garage doors with your smartphone. Whether you manage a rental property, an Airbnb, or simply need easy access to your home, Barrier Lifter offers seamless and secure GSM-based automation. With just an SMS you can automate your barrier access — all from a spare phone. Grant or revoke access, keep track of who is in or out, and even get SMS updates for individual user's actions.