I want to send message to all my contacts, but I want to send Whatsapp message to those who use Whatsapp and a regular text message to others. How do I do it? (I have 1140 contacts, out of which 662 also use whatsapp, manually doing it will take a lot of time.)
You could do this using hike(Best way to do this),whereas hike supports sms by the hike number....
Any how you need it in the whatsapp... so all you need is to create a broadcast list with all your contacts in it (broadcast messages will be sent to only the contacts who have saved your number in their contact list).
But to send the messages to those who dont have whatsapp you will need some contact app with specific filter...(search in play store)