IOS App for Whatsapp Online and offline status Tracking

IOS app: The app should Track Whatsapp if someone comes online and goes offline, App functions : - the application sends a notification when a Tracked number comes online and goes offline - The notifications should be in time when the tracked number comes online and offline - Also on the list there is a status indicating when the number has been online for the last time or if its currently online - Statistics how often this Tracked number goes online daily and how long for each day and also keep a history of the statistics. - The user should be able to Add a name for the tracked number - The user should be able to selectively disable or enable the notification inside the application - Buy options: Users can purchase different packages (4 number monitoring for a month or 10 numbers monitoring for a month etc… ) There is some a similar app on the Apple app store: Netwa Please check the app and check if its possible for you to build a similar one Please note: you will have to help me with submission and approval of the app on Apple app store Note: If you're able to build this app successfully you will be also invited to a similar project for android platform,