You can play iPlexMC by adding the server in the Minecraft launcher.
On Minecraft Bedrock Edition, open the Minecraft launcher or Minecraft app. Go to the “Servers” tab and press “Add Server.” Enter the iPlexMC IP Address mc.iplexmc.euin the “Server Address” and the iPlexMC port 19132 in the “Port.” Then press “Save” and start playing.