IQ-Fit

I usually breeze through puzzles, but the last few challenges in the 120-card deck actually had me stuck for a solid 20 minutes—that's exactly the workout my brain needed.

The way the pieces click together to form a perfect flat surface is oddly satisfying, and starting with the easier challenges eases you right in. It’s a great way to get some mental exercise during my commute.

I've gone through maybe half the 120 challenges so far, and the way the pieces click into a flat image every time is oddly satisfying. It's a great pick-me-up when I need a few minutes of focus without a screen.