This app was mentioned in 3 comments, with an average of 7.33 upvotes
Oh man! My wife knows how badly I want to play Euchre (but refuses to learn it ��) and pointed out your post so that I could mention my interest. I'm from NE PA and learned it from some friends back in college. It's been years since I've actually played it in person, but I play it almost daily on my phone (to get a quick fix, and to get a little better at it than I used to be). Would def be interested in playing some Euchre! Always makes for a great game night (even better if alcohol is consumed throughout).
If you're looking for a decent phone version, here's the link to the one I play on Android: https://play.google.com/store/apps/details?id=com.karmangames.euchre
Apparently they also made an iPhone version if that's what you've got: https://itunes.apple.com/app/id1050621406
If you want to learn how to play, getting a Euchre game for your phone is the way to go.
My favorite is https://play.google.com/store/apps/details?id=com.karmangames.euchre
Details are sparse, so this is just a shot in the wild: https://play.google.com/store/apps/details?id=com.karmangames.euchre&hl=en
Maybe that?