Smart me!

"Smart me!" is an interactive Android app designed to improve mental arithmetic skills and concentration for both children and adults. It offers a variety of arithmetic operations including addition, subtraction, multiplication, and division, with adjustable number ranges suitable for early learners. The app promotes learning through repetition of incorrect answers, features motivating sounds, and provides a grading system to track progress. With no unnecessary permissions and multi-user support, it's a user-friendly, free resource available in English.