I finally built Mathy, a little project I’ve been thinking about for a couple years. It’s free, and no account is required if you want to try it on iOS or web . I use Math Academy daily, which is the best way to learn math. But I wanted a mobile-friendly way to drill math and weak areas on the go that was more convenient/less cumbersome than Anki cards. It’s also a nice way to do something productive (feel like I’m building towards something) in those spare moments here and there rather than scrolling. The gist of Mathy is counterintuitive: If it works, you’ll use it less. For example, as your topics become automatic, recommended practice sessions can get weeks apart or longer (you can still practice whenever you want). Why Mathy First, I’m a huge proponent of Math Academy, their philosophy and everything Justin shares about learning ( check it out ), so I won’t recap that here. I want to be much better at advanced math, but I’m not a naturally gifted mathematician and bump into a ceiling.…