WhatsApp Messenger is a freeware, cross-platform messaging and Voice over IP service owned by Facebook. It allows the sending of text messages and voice calls, as well as video calls, images, and other media, documents, and user location. - [login to view URL]
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Would Prefer a Indian Company but open to others if they can provide quality.
3 freelancers are bidding on average ₹9222 for this job
I'm already working at a start-up as android developer and I did much more intense job than this. I can make you this app in 3 days at a reasonable price.