Meet the gLink: a tiny gadget that turns your garage door into a smart garage door, allowing you to control it from your iOS or Android device. It does not require a battery or power cord to work. The app supports an unlimited number of garage doors. The device features gesture control, so you can knock on your phone when it is in your pocket to open your garage.
The device features 128-bit encryption for your protection. It is available for under $45 at this time.