I can’t find Paid version of Muslim Pro and Qalbox on the Apple App Store or Google Play Store
The Premium version of Muslim Pro and Qalbox is not a separate application available on the store. It is a premium option which you can purchase directly from the application.
Read more on this article on steps to upgrade to Premium in the Muslim Pro app: How does the Premium subscription plan works?
Your payment will be directly and securely processed by Apple (via your iTunes / App Store account), Google (via your Gmail, Google Play Store account) depending on which device you are using. We do not have access to your payment details.