The MediaMonkey for Android Pro License is tied to the App store account. If you use the same account as the one used to purchase you should be able to re-install without purchase: https://www.mediamonkey.com/support/knowledge-base/purchasing-licensing-mediamonkey-for-android/mma-license-on-another-android-device/

I purchased media monkey pro a few days ago. I tried to install it on the new device I got today and it wants me to repurchase it, how do i restore my purchase on my new device? I cannot find the option anywhere.