I know there are many TV tracking apps out there, many that people love, but none worked for me. Too cluttered, trying to tell me what I should watch next, share, rate, etc. Probably AI recommendations too.
I don’t want any of that. I just want to know what episodes I’ve watched, and what is next.
So I’ve made that app, called TV Next.
Home page showing everything
You can customize the level of detail shown on the home page. This is everything including the tags on the show, the networks it is available on, remaining episodes, percentage of episodes watched, etc.

Settings
You can tone it down in settings:

Toned down home page
This is how I like it:

Tags: the key to the app
Tag shows by swiping them:

You can define tags, including the name, color, icon, and whether or not they should appear as tabs on the home page:

Marking an episode as watched:
Swipe an episode to mark it as watched:

Episode details
Tap an episode to view a quick summary, and if you have the excellent Callsheet app installed, you can view the episode there.
