Mobile application
You can install Bird Tit on your phone following the below instructions:
Instructions for iOS
In the Safari browser, enter www.birdtit.com and go to the club's website.
Tap on the "Share" button 
Tap on 
and select "Add to Home Screen"
and select "Add to Home Screen"
Select "Add".
Instructions for ANDROID
In the Chrome browser, enter www.birdtit.com and go to the club's website.
Tap on 
and select "Add to Home Screen"
and select "Add to Home Screen"
Select "Add".