I have created qr scanner app but fail to implement some features ,i need someone to join me for $60

Hello developers i have created my qr scanner app using kodular ,but there are some features i need to add ,i fail i have 60$ i find someone who will add for me
refferal system- where each user can get refferal link and share to others
Earning points - where users when sharing refferal link to others he get some points
withdraw points- where user can withdraw those points will be done manually
listern to live events from my marketplace and showing them in my app

How the user will create account using your app?? Through Firebase authentication or anyother method??

Whenever user sign up save the detail in fb and generate code also and save that too in fb. Like this further you can continue

user create account through firebase auth