PayPal has announced its app will no longer work unless it's installed on Android devices with 4.0.3 or later as well as Apple devices with iOS 9.1 or later. The new 6.0 version of the PayPal app is not going to be supported on Windows Phone, BlackBerry OS, or the Amazon Fire Phone. PayPal's new release will come with a new look and feel, PayPal balance, and transaction history. While PayPal continues to look into investing in new ways to make money and new ways to add convenience to the PayPal experience, it regrets that it had to make the decision of discontinuing the app for customers...
Source: http://www.gsmarena.com/paypal_app_60_will_not_be_coming_to_windows_phone_blackberry_or_fire_phone-news-18413.php