There are two ways to use Tango - using a mobile App, or just opening Tango in your web browser.
Using the app will probably be the best experience for you.
Tango app supports:
Android devices running version 6.0 (your probably does much higher than that!) and higher
Apple devices running iOS 11 and higher. (Full functionality not guaranteed on devices that are jailbroken or running a custom ROM)
If you do not have an Apple or Android device, the web version is still there for you and fully functional!
Open http://tango.me to enjoy Tango live in your browser, on any computing device.