Make a simple Android program, which will collect the list of all contacts [ names, numbers, email IDs etc ] (user selectable or all) in JSONObject and post it to given URL.
I'm offering $ 10 for this work, bid only if you agree on the price and can deliver it in a day. Future features will come up as App becomes successful.
22 pekerja bebas membida secara purata $26 untuk pekerjaan ini
Contacts content provider in Android provides for a dedicated API that allows access, the data which can then be pushed over GET / POST to a web server, thanks to the Volley SDK.