Should I make my app Invite-only?
While invite-only apps have their benefits, these can quickly fizzle out and leave users with a poorer experience than they were expecting. Unless you're beta testing or you need to protect your users from the masses, you probably don't need to make your app exclusive.
How do invite-only apps work?
Invite-Only Apps are applications that require you to use the apps only after being invited to them by the company or current user. The development idea is simple where the company does a test run and collects feedback on user experience. They may have a waitlist or might have planned for a certain target group.