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In IOS (Apple Iphone) and Android phones (HTC, Samsung, Sony, Blackberry, LG, etc), there is a program called Whatsup Messenger ( https://play.google.com/store/apps/details?id=com.whatsapp ), where people use it to send messages to one another, similar to Google Hangouts, Skype, Wechat, Tango and Line.
We have a database of thousands of customers, and would like to send them an identical promotional message from time to time, and we are looking for a solution that does one of the following from a PC Computer:
1) a php script/program that sends a whatsup message to thousands of contacts, from a Mysql database
2) a php script/program that sends a whatsup message to thousands of contacts, from a text/csv file.
3) a PC program (written in .net, java, visual basic) that sends a whatsup message to thousands of contacts, from a text/csv file.
4) a solution that allows us to send a whatsup message to thousands of contacts, from a text/csv file (in this case, please describe your solution)
The result is: the customer's phone (android or IOS) should receive our custom message in their whatsup messenger program (assume they have installed this "whatsup" program on their phones).
NOTE1: If you do not know what is a "whatsup" application in IOS or android phones, this project may not be suitable for you.
NOTE2: We will own all full rights of software/codes developed in this project.