Most people have a tablet or mobile phone. Even an old one will probably do.
I am just looking into it and am trying Touch panel
Try sites below for ipad, android tablet or mobile phone connections.
https://matricapp.com/
http://www.dauntless-soft.com/products/simplates/
http://www.digitalaviation.com/getting_started/index.html#rnsoverview_text
https://www.touch-portal.com/
http://www.simionic.net/wordpress/
https://infiniteflight.com/
Good luck and good hunting.