There are a lot of new AI tools out for iPhone users, but the Pi app sticks out. Here’s what iPhone users need to know about its features, problems, compatibility, and more. If you’re looking for an ...

March 14 is my favorite day to be a nerd. Across the country, math geeks in museums, schools, private groups and elsewhere gather to celebrate the number pi, approximately 3.14. That’s why March 14 – ...