While several apps for both iPhone and Android claim to aid in brain training, not all of them fulfill their promises.

BPN Training App is a completely free resource with expert-led personalized running and strength training programs, goal-tracking, and supplement guidance ...

I use these learning apps to dive into quick lessons about the topics I'm interested in, from coding to trivia facts.

As it turns out, you can get some pretty sweet Android apps without spending a dime. Here are the best free Android apps.