I have made a Whatsapp App ready to show to you!! We would need to custumize the app for you and it is done. It supports 1.000.000 users!
Dear Client,
I have read your requirements and we are able to do this job for you better and cheaper than any other freelancers. First, we have many years of experience developing apps; secondly, we need more excellent reviews.
Please, let's negotiate the project; and prove yourself our skills!
Carlos.