How Do I Get Testers for my App Submissions? I submitted my enrollment in the Apple Developer Program a couple of days ago. I'm waiting to be approved.

I have Mac 3D Puzzle apps that were created as .app files using Unity 5.3.2. I plan to create iPad versions from Unity which create Xcode projects. I would like to take advantage of the TestFlight Beta Testing program for this app but I don't know anyone to invite. Many of the people I know are iPhone/iPad users but are not technically inclined where I would invite them to test my apps. Can I use this program?
Most people, myself included, ask family, friends, and co-workers to help test. Depending on the technical details of what you want tested, you can also put out calls for testers on Twitter and Facebook. 

There are also websites that will help find testers for you, especially for games. Toucharcade is a good site for finding game testers.