Viber is free and what Skype used to be, before Microsoft bought it and turned it into a shithole app.
A phone number is the only account information it needs to use it, so set up is very quick. If you also want to use Viber on your desktop or laptop, just let your phone's camera scan the QR code on the screen once. It works on Windows, Mac, Linux, Android, iOS.
Why anyone would still use Skype is beyond me. Oh, and they don't censor shit and couldn't if they wanted to. Communications are end-to-end encrypted.
https://en.wikipedia.org/wiki/Viber