Your license entitles you to use iReal Pro on the SAME operating system(OS) on multiple devices.
(iOS, macOS & Android are different operating systems/platforms so you can't copy your Mac version to your iPad or Android and vice versa)
To download the app to your other device on the same OS, just make sure that you are logged in with the email address you used for the original purchase.
This means you need:
iOS version: 1 purchase in the App Store on your device to install the app on iPhone & iPad & iPod
Mac version: 1 purchase in the Mac App Store to install the Mac version on your MacBook and iMac (contact us if you purchased it directly from us and want to install it on new computer)
Android version: 1 purchase in Google Play Store to install the Android version on Android tablet and Android phones
Unfortunately we have no way to transfer licenses between different platforms.
Mac OS X, iOS and Android are separate platforms with separate billing by Apple and Google.
We don’t have access to their billing, we don’t have your name either and we receive limited amount of promo codes so we can't fulfill thousands of users' request who are transferring to new devices between different platforms.