Ract native app installation (Please Read Before Submit a bid)

Install a react native app Template from codecanyon: here is the link
https://codecanyon.net/item/mstore-multi-vendor-complete-react-native-template-for-ecommerce/22278924

installation on android and ios for the mobile apps
web is already installed
adding a whatsapp icon inside the app for the customer to redirect them to our chat
we have no time
how can install it in less than 1 day its good