Dingtone - Dingtone is a free call and texting application for making unlimited calls and text messages to any number at the moment registered in any part of the world by any cellular company.
Callmama - Get cheap international calling, international virtual number, Call Mama Gives an added advantage to send message and make calls to non-user of Callmama App.
Textnow.com - It lets you text your friends, aka my only source of happiness
CallHippo - Easy to use Phone System with World-Class Support
FluffyChat - Open. Nonprofit. Cute ?
Numero eSIM - Numero eSIM is a phone-number app that makes voice and data possible anywhere in the world, for free.