Speed Training Challenge is a free Android app developed by Twice The Speed. It falls under the lifestyle category with a subcategory of Health & Fitness. This app aims to provide users with an accurate rating of their speed and athletic ability through four simple tests. The app also allows users to challenge their friends once they receive their rating.

Upon downloading the app, users receive a speed training warm-up from the World's Leading Speed Training Company. The app is easy to navigate and provides a fun way to test your speed and challenge your friends.

Overall, Speed Training Challenge is a great app for anyone looking to test their speed and athletic ability. The app is free to download and provides an accurate rating through four simple tests. It also offers a fun way to challenge your friends and stay motivated in your fitness journey.