I want to make viber and whatsapp call and message within my iOS app. I use @"viber://calls" and @"viber://chats" and for whats app @"whatsapp://send?text=" and @"whatsapp://app". But this is just opening viber and whats app how can I open a chat window for the specific number directly and make a call directly? And how to handle when the number not saved in the contact?
Please help me. Thanks