I dont know Android, but my phone test is ok, maybe you need update system new version?
Unfortunately, that's not it; I'm all up to date. Tried on a Samsung Note 9 (Android 9), Huawei phone (Android 7) and an Amazon Kindle Fire (their own version, but other games still install fine).
Each of them just say: "App not installed" roughly 3/4 in the installation process. If the file downloaded from this site actually works for you, and you are not using Android... Is it possible the game simply doesn't install on Android-based systems even if it is an APK file?
Same problem for me, bought it only because it have android version, but no matter on what device i try to instal it, aquiring message App not instaled. Tried samsung s7, note 9, xiaomi pro 8, lg g7. This app impossible to instal on any android. Tried it on blue stacks emulator, but it also got error message - install_parse_failed_no_certificates. Look like app file have some problem with certificate. Can you update app please?