Using modified apps can lead to your account being banned from the official version of the game or service.
If you are looking for a specific gaming experience, it is always safer to stick to official platforms. If you must use a third-party install, ensure you have a mobile antivirus app running and back up your data before proceeding.
Unlike official apps, these won't update automatically, meaning security vulnerabilities stay unpatched.
Once downloaded, open your Downloads folder or File Manager.