domoticz android app paid version on MicroG

[kasakopei]

I am researching the possibility to replace stock android of my phone with Lineageos. Then I want to install MicroG instead of Gapps.
But If I do that I will loose the apps that I have paid for. Like Domoticz premium.
Is there a way to activate my 'license' without googles store?
Anyone has experience with this?