What's a good Android game that's actually mentally stimulating and could potentially earn you a little extra spending money?

I've been exploring different ways to keep my mind sharp while also unwinding, and I recently came across Swagbucks Trivia for Money. What I appreciate is that it's not just mindless entertainment; it actually requires you to think and recall information. The potential to earn a little extra spending money is a nice bonus, but for me, the real draw is the mental stimulation.

Of course, it's important to approach these types of apps mindfully. I always make sure to set time limits and be aware of how much time I'm spending on it. It's all about finding a balance and ensuring it's a healthy addition to my routine, not a distraction from other important activities. The app itself seems thoughtfully designed and respects your time. I've noticed it encourages healthy usage patterns and doesn't feel invasive, which is something I always look for.