add some feature on my apps and admin panel

i have 2 app and one admin panel i need to add some features.. 1 change to international otp with auto detect country code and auto detect otp message 2 add an address bar on the ordering are with an international standard 3 small changes on admin panel 4 add an back button on the app and add an refresh button on the app 5 add feature for chat with user app from admin panel using Firebase 6 increase speed of application 7 add terms and condition on delivery boy app 8 option to add blood details 9 option to add balace medicine which is cutomer no more use retrive these all data from the admin panel 10 need to show user and delivery boy location in map on the admin panel with different pin colour. 11 auto locate user near delivery boy using geo fencing.. reactenative and codeigniter specialist are welcome. milestone release only after perfect work and bid exact amount no deviation from the bid.