I want to test a specific app-how do I set it up during the free trial?

Yes — the free trial for Genymotion Desktop Pro lets you test a specific app with full features for 30 days. Create an account, activate it from the email, click TRY FOR 30 DAYS, download the trial, then install and sign in with that trial account.

If you already picked Personal Use, you must uninstall Genymotion Desktop completely, delete your account, create a new one, and restart the trial flow. See I want to test Genymotion Desktop Pro, with full features, but I have already selected "Personal Use" and Is there a trial for Genymotion Desktop Pro edition?.

Once it opens, choose Sign in for external a license, enter your credentials, and Genymotion will switch to Trial mode.

What app are you trying to test, and on which computer system?