2017-08-19 00:00:00 DSLR Controller was the first and remains the best app to fully control your Canon EOS DSLR from your Android device, through USB cable or Wi-Fi connection. No computer or laptop required, no root required, only a compatible mobile device, a compatible camera, and if connecting through USB, the right cable. We strongly suggest you read up on the website ( http://dslrcontroller.com/ ) about what DSLR Controller can do, how it works, and how to use it, before purchasing. The website contains a wealth of information you should know before using. Not all devices are compatible, especially if you want to use a USB connection. For a free app you can use to test compatibility, see the "Remote Release" app ( http://market.android.com/details?id=eu.chainfire.remoterelease ). If you need a refund, go to our website ( http://dslrcontroller.com/ ) and follow the instructions in the FAQ entry. We cannot process refunds through email.