いっしょにダイエット！がんばれ！ルルロロ Free is a health and fitness app developed by GalleryApp for Android devices. This app is based on the popular anime series "がんばれ！ルルロロ" and helps users track their weight loss journey in a fun and engaging way. With this app, users can register their weight and body fat percentage twice a day and add quick notes to keep track of their progress. The app also features a graph that displays weight and body fat percentage changes over time, with options to switch between 1-12 months.

The app's interface is simple and easy to use, with cute and colorful graphics of the beloved character "ルルロロ" from the hit children's book series "くまのがっこう". It's a great way to stay motivated and keep track of your weight loss goals while enjoying the company of a cute and friendly character. The app is completely free and is a great addition to any health and fitness routine.