So one problem founders may have when they're about to launch their app is getting contact details of interested potential customers directly.

Google forms or mailchimp may solve this problem but I find them a bit clunky (gforms) and too general (mailchimp) for a startup product about to be launched. Also setup may be too troublesome.

Just a question: As founders, would you use a waitlisting/wishlisting app for launch aside from google forms or mailchimp? Is a good solution already existing in the market?