MATHCOUNTS Trainer vs EcoClean

Train your way to Nationals with the free MATHCOUNTS Trainer presented by Art of Problem Solving! With thousands of problems from previous School, Chapter, State, and National MATHCOUNTS competitions, the Trainer is great practice for aspiring MATHCOUNTS Mathletes of all levels. Full solutions are provided for every problem so players can learn how to approach even the toughest questions. Track your progress, compete against others, and see if you can climb to the top of the Leaderboard on the new MATHCOUNTS Trainer today! MATHCOUNTS Trainer only supports Guest mode on iOS. Play online at aops.com/mc for the full training experience. MATHCOUNTS® and Mathlete® are registered trademarks of the MATHCOUNTS Foundation.

EcoClean helps you take simple, meaningful action to protect your environment. The app shows nearby trash and recycling locations on an interactive map and highlights trash hotspots where cleanup is most needed. By using real-world location data, EcoClean makes it easy to see where small efforts can create a big impact. EcoClean also helps you build eco-friendly habits through daily eco tips and a personal cleanup log. Track the trash you collect, maintain streaks by cleaning up consistently, and unlock milestones and achievements as you progress. Whether you’re picking up litter on a walk or organizing regular cleanups, EcoClean turns environmental care into something motivating and rewarding. EcoClean is designed to make environmental action simple, positive, and accessible—helping you keep your community clean, one piece of trash at a time.