I strongly recommend to avoid using spying apps 
but speaking of which i use to have similar issue with one of my banking’s app complaining that the installed app is an “unofficial version”. I have found out that this app is checking “Installer App” string from an app android data. To fix this issue I had to set Aurora->Settings->Instalation->Instalation method->Native installer or use App Manager from F-droid and set Fake store as Installer App in Settings/Installer.
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