So you want to control your garage door from your smartphone? gLink has you covered. It is a tiny gadget that turns your garage door into a smart door compatible with iOS and Android devices. It does not require a battery or power cord. The gLink app supports an unlimited number of garage doors.
Here is the neat part: you can open your garage by knocking on your phone, so there is no need to take it out of your pocket. The developers have used 128-bit encryption for your security. Costs under $45 at this time.