A nifty little utility app that lets you monitor your Plex server from your iPhone or iPad. It can display current activity, user stats, top played media, and more. It offers a lot of the same functionality as Tautulli without the clunky setup process. You simply install it from the App Store, authenticate with Plex, and you’re good to go.
Some features require a $3.99 in-app purchase, but I think it’s more than worth it.