Does it have sim-card Ipad Pro 11?

What model iPad do you have?

If it is wifi only, no sim.

If it is wifi + cellular, it is capable of connecting to a

wireless provider with a properly provisioned sim. You

will be able to connect to the Internet without wifi,

but you will not be able to make/receive phone calls

as you would with a cellphone. iPads use data only

sims. WhatsApp has not offered a version for iPad but

you can access their web-based version using Safari or

other web browser of your choice.

If viber is available for iPad in your location and if you are connected to wifi,

you should be able to use it.

You may wish to review their privacy policy as they seem to track a lot of

info about you and your communications.