This app was mentioned in 5 comments, with an average of 1.40 upvotes
Exactly right. Speaking of mobile rhythm games, I just found a really good one just last night called Hachi Hachi, which is mobile maimai.
The difficulty jump between a 1 and 2 was really surprising. I may put up a review of this game in the next week or two, for now I just want to play it until I see when I close my eyes.
Mobile rhythm games are fine. Just very few I've found worth playing, last night someone from Japan told me about Hachi Hachi. It's honestly the first mobile rhythm game I've found to be worth continuing to play. Has micro transactions, but they're avoidable.
https://play.google.com/store/apps/details?id=hk.com.skytree.hachihachi
Android版もありました!ちなみに英語にも対応しているらしいです