I need an app that can sort through a csv database of telephone no. and or emails and sort them into databases that apply to imessage, signal, telegram, all messaging services, some will be on all databases and some only on one. I need to the orginal database to create a database for each platform to be able to export as a csv file one for each message service, Imessage, Whatsapp, telegram etc..
API's will need to be made if required
2nd part would be a messaging app that will send messages to each customer on all platforms eg whatsapp, telegram , imessage etc.