This is how to test your Android app without uploading in the play store
DOWNLOAD THE APP APKEDITOR FROM THE PLAYSTORE
OPEN THE APP
SELECT THE APK FILE YOU WANT TO INSTAL
THE NEXT STEP
HIT COMMON EDIT
CHANGE IT TO INTERNAL ONLY
CLICK INTERNAL ONLY AND HIT SAVE
NOW HIT INSTALL THAT IT IF YOU HAVE ANY ERROR PLEASE FEEL FREE TO CONTACT ME
YOUR APP IS INSTALLED WITH SUCCESS