Leaving the beta 1.16 version

After joining the 1.16.0.68 beta version, I learned that my friend was not able to get the beta on his iPhone. When I left the beta I was told that I should delete the minecraft app and redownload it. When I redownload the minecraft app it try to load my account and the app reset as the beta version. Then when I check the Google play store to leave the beta, it said the I was not in using the beta version.