The Atrivity App is frequently improving and updating itself. Usually your smartphone will update it according the general settings. But in case of doubt you can check it going to Options, then look for number on the bottom right corner.
1- First thing you need to do is go to profile icon on the bottom right of your main app screen and select the icon on the top rigtht corner.
2- Inside the option tab, on the bottom right corner, you will see the app version you are working with.
