Need App built for android and ios

Looking to have an app built for android and ios. Project Requirements: • Makes calls between users • Make video calls between users • Paid calls to landlines and mobile phones around the world. • Send Instant Messages between users • Send picture, audio, and video files between users. • Send emojiis and stickers • Invite friends to join app via SMS •User Account Management - Sign up - Name - Email - Password - Confirm Password - Phone number via selection of country code (show the flag) - Login - Profile Management - Create Groups - Add friends - List of Emails - Help & Support Page • Search Management - Search contacts by Name… Alphabetic order - Select one user - After selecting one person from list user can chat, call, and send images/videos/voice •Chat Module - One- One Chat - Group Chat - Send images, audio, video & Files by using attachments - It will also have an option to Add a Friend - User Can send emoji’s and stickers to each other •Calling Module - Voice Call - Video Call - Note:- There are two types of voice calls, voice calls between users and pay voice calls (directly to the phone) •Favorite List - This will show all of the favorite users in a list - By clicking on Add button, user can add his friends in favorite list •Call History - This will list down all the incoming, outgoing & missed calls details of user •Update Module - Updated notifications of various users Search Feature - User can search content in chat by keyword - Users can search other users by Alphabet Settings - Privacy - Notifications - Network usage Mailing List - Add contacts to mailing list to send an email Other Features - Push Notifications - Help & Support - About us - FAQ - Service Status - Contact us