Hello,
How are you? Hope you will be good.
I am an individual experienced developer having more than 6 year of experience in mobile application development (4 year in Native IOS and Native Android & 2 year in Flutter (iOS and Android)).
During this period I have uploaded 200+ apps on Apple store and play store. I will show you my previous work in private chatbox.
I will add payment gateway in your app perfectly, waiting for your response.
Thanks & Regards
Mobeen Khan