Android App developement for Astrology website

android app development for astrology website. website have call, chat video and product selling features. i want to changes its existing consultation system and wants some changes in astrologer payment withdraw system and website template changes

api integrated in website are below

firebase for chat
agora for video call and voice call and live streaming
otpless for login
aws bucket
Google Bucket
Horoscope API from vedic astro api
all major payment gateway- razor pay, phone pay, paypal, payu money etc

additional feature i want to add are-
book online pooja

i want to add ringtone system for consultation request send and received
wants to remove time limit set for consultation in existing consultation feature functionality
website templet change

there are two apps astrologer app and customer app