When I click Minecraft Realms on my iPad I get booted out. I cannot login. I paid for an Realms subscription... what did I do wrong?
Realms Mobile was shut down, unfortunately, due to the developers wanting to focus on the single player gameplay. However, you can still play LAN games, and when it comes out, online multiplayer.
Realms were on the MCPE a while ago but were removed because they wanted to focus on updating the game and not on multiplayer.