Can you make a free server on an iPad
You can create a free server on a Mac and then play on that server using your iPad.
Hmm well if you want to make a cloud server it requires real money to start and keep running, but it is free to join until world credit runs out.
You can share a singleplayer world across your local LAN with other devices, but you can’t host an online world on your iPad. You need a Mac.