What is the maximum number of testers that i can add to TestFlight Account? Is there any limitation? I have created and built iPhone application and uploaded to TestFlight. Then I added a Tester. He could download and install that. Since I am using Free account of Test flight, I would like to know its limitations.
NOTE: This answer applies to the old testflightapp.com services. The rules have changes now that Apple owns TestFlight.
You are limited, by Apple, to only having 100 Ad Hoc devices. This is a per year limit. If you add a device, and then remove it, it does not let you add another device.
So, even if TestFlight let you add more than 100 devices, you still could not install the Ad Hoc provisioned app on them.