@Pratyush Sharma I don't see an answer to my questions though...
I was able to install Enpass on 1 device with google play services, exctract *.ipa from that installation and install in on my 2nd device with HMS. This is secure.
I can see that you have latest APK 5.x version for download on your website. Can you please add latest 6.x version to that?
You could also disable google drive sync for devices that use HMS and provide an ipa on your website. Everything else works fine.