3FIT is a free Android app developed by AEON RETAIL CO. LTD. that falls under the category of lifestyle and subcategory of health and fitness. The app offers a range of features to help you achieve your fitness goals and lead a healthy lifestyle.

One of the most notable features of the app is the Stamp Card, which allows you to check-in at various stores and accumulate points and stamps. The app also provides a variety of coupons that can be used for discounts at participating stores. Additionally, the app allows you to track your health records, including monthly steps taken and calories burned, and view your progress through rankings.

Overall, 3FIT is a comprehensive health and fitness app that offers a range of features to help you stay on top of your fitness goals. It's a great app for anyone looking to improve their health and track their progress in an easy and accessible way.