Can I install the joyn app on my Windows Phone? Thaïs Updated October 22, 2018 13:56 Follow Our app is only available for iOS and Android devices. If this were to change in the future, we'll let you now! Related articles How do I re-install the joyn app? I have two different accounts and would like to gather all my points in one single account. What should I do? I've lost my Qustomer card, but I already have a new joyn card. What should I do to keep my Qustomer points? I can't see my Qustomer points in my new joyn account? Can customers enjoy a joyn loyalty card without using an email address? Comments 0 comments Please sign in to leave a comment.