At least for something like Signal you can compile it yourself.  They even provide instructions.  So you could avoid gapps for that one with a bit of work.<p><a href="https:&#x2F;&#x2F;github.com&#x2F;WhisperSystems&#x2F;Signal-Android&#x2F;wiki&#x2F;How-to-build-Signal-from-the-sources" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;WhisperSystems&#x2F;Signal-Android&#x2F;wiki&#x2F;How-to...</a>