Yeah it kinda sucks, I was hoping for more too. I just wish you could sort the games in the bundle by platform even, it's hard to know if there are more or not, that's just the only one I found on a quick search.
I've been seeing people use https://randombundlegame.com/browse to browse all of the games from the bundle. You can sort through the games with filters or even have it pick a random game out of the bundle. It seems that you can filter the list down to any games that include an Android platform too! https://randombundlegame.com/browse?categories=Game&platforms=Android