81 Milyar Adım is a lifestyle app available on Android, developed by T.C. Çevre Şehircilik ve İklim Değişikliği Bak. It is a free app that falls under the Health & Fitness subcategory.

The app aims to promote a healthy environment by encouraging users to take steps towards a healthier lifestyle. The app's main feature is to track the number of steps taken by the user, and it encourages users to take 81 billion steps collectively. It is a unique initiative by the developer to raise awareness about the importance of a healthy environment.

The app's interface is user-friendly and straightforward, making it easy to use for people of all ages. It is a great way to motivate people to stay active and promote a healthier environment. Overall, 81 Milyar Adım is an excellent app for those who want to take small steps towards a healthier lifestyle while contributing to a better environment.