How to Install the fx 991ex App on Android
Most people in Bangladesh use Android phones, which is why the fx 991ex Android app is by far the most downloaded. It's not on the Google Play Store, but installing via APK is straightforward — just follow a few simple steps.
First-time APK installs can feel a bit daunting, since phones typically block installations from "Unknown Sources" by default. But this is just a standard security setting — allow it once and you're good to go.
Download APK File
Tap the "Android APK Download" button above. The file will be saved to your phone's Downloads folder.
Enable Unknown Sources
Go to Settings → Security → Unknown Sources and turn it on. Alternatively, go to Settings → Apps → Special App Access → Install Unknown Apps and grant permission to Chrome or File Manager.
Open the APK File
Tap the downloaded file from your Downloads folder or notification. Then tap "Install".
Installation Complete
Installation is done in just 30–60 seconds. The fx 991ex icon will appear on your home screen.
Log In or Register
If you already have an account, log in; if you're new, register. Your balance and bonuses will all sync automatically.