I've tried all the Terrerium-like apks, such as Cyberflix and Cinema HD. They work alright, especially with real-debrid, but I'm telling you, they do not hold a candle to Kodi with a good addon like Exodus (or even better, Seren).
My advice is to subscribe to real-debrid and use a dedicated app (recommend Kodi and Seren) but you can use anything you want if you have debrid.
Blimey, the Exodus add-on, there's a ghost from the past. I used to use Kodi back in the day and was my first foray in to streaming and IPTV. I always used to see references to Real Debrid, when setting up the repositiories, but never fancied paying for anything as I was happy with the add-ons and using Terrarium TV, Tea Tv and now Cinema.
As many have said, IPTV services and Add-ons come and go, so month by month is the sensible way forward. Even when being a regular Kodi user, I remember the Kodi repositiories Genesis and also Exodus, having their seperate internal conflicts and offshoots appearing as a result.
Backup services should always be considered, although I have access to Gamesmaster services by virtue of being an $8 account on Topdog Today, I'm contemplating not renewing during the first week of July when my subs are due, unless they get their act sorted by then, as it was a good service.
I've been looking at some other IPTV options and am currently trialing IPTV Premium, all good but a little on the expensive side at £10 for 2 connections per month. I will also look at going back to Kodi and looking at the Real Debrid option for films just to have a gander and refresh my Kodi knowledge (there's nothing decent on telly afterall at the moment).
A reasonable alternative to get you out of a hole if you want to catch some live TV is LiveNetTV, in comparison to the IPTV offerings the quality isnt close but its watchable, so if your desperate for some of the upcoming EPL games that arent on Freeview, that is another option.
Good luck everyone.