Streep is a pedometer that also helps you improve your ecological footprint. The daily challenge is to grow the tree of your choice, reaching your steps goal: the more you walk, the more the tree will grow, but the growth will slow down according to your use of the machine. Streep will motivate you to have a better personal ecological footprint during the day; when you strike a good balance between steps taken and machine use, your tree will complete its growth. All features: The tree will grow up in a scenery with real-time weather and air pollution conditions. Plan a route to know how many steps is it and the amount of saved CO2. Check your progress over time with the summary for the past seven days. Choose your favorite tree. Integration with the Health app. Use Streep stickers in the Messages app.