GroupApp charges a 5% transaction fee on the revenue you earn if you are on the free plan. This fee applies to payments made through your community on GroupApp.
On all paid plans, GroupApp charges 0% transaction fees. Unlike other platforms, GroupApp does not take any share of your revenue, and there are no hidden charges: You keep everything you earn.
Stripe charges a standard credit card processing fee of 2.9% + 30 cents per transaction, which applies to all plans and is set by Stripe, not GroupApp.