1. Tango is a mobile app that uses augmented reality (AR) to overlay digital content onto the real world.

2. The app was developed by Google and was first released in 2014.

3. Tango can be used to create a variety of AR experiences, such as games, educational apps, and even tools for measuring real-world objects.

4. The app is compatible with a variety of Android and iOS devices.

5. Tango uses a variety of sensors, including a camera, a depth sensor, and an accelerometer, to track the user's movements and environment.

6. The app is still under development, but it has already been used to create some impressive AR experiences.

7. Tango is a powerful tool that has the potential to change the way we interact with the world around us.

8. The app is free to download and use.