This is a simple Automator Service for MacOS that runs adb install -r in an apk in Finder. Right-click an apk and go to Services > Install APK -r.
It sends a notification when finished and also says "sucess" or "failure" plus the failure reason.
To install, simply copy Install APK -r.workflow to your ~/Library/Services folder.
Atention: You'll probably need to update the adb path in the script: double click the workflow file to open it in Automator and edit it using your path to adb. To find out where adb is installed, try adb --version in Terminal.