The 399det app puts the full power of our betting platform right in your pocket. Live sports odds, jackpot slots, instant BDT deposits and withdrawals — all optimised for your Android or iOS device, wherever you are in Bangladesh.
The 399det app is not just a stripped-down version of the website. It is a fully featured betting platform built from the ground up for mobile users in Bangladesh.
Bet on live football, cricket, and other sports with real-time odds that update every second. The 399det app delivers in-play betting with zero lag so you never miss a moment of the action.
Access the full jackpot and slot library directly from the 399det app. Progressive jackpots, Crazy 777, Dragon Hatch — all load fast and play smoothly on any Android or iOS device.
Deposit and withdraw in Bangladeshi Taka directly through the app using bKash, Nagad, or Rocket. Transactions are processed in minutes with no hidden fees and no minimum withdrawal hassle.
Never miss a bonus offer, live match alert, or jackpot trigger again. The 399det app sends you real-time push notifications so you are always the first to know about new promotions and big wins.
Log in to your 399det account in under a second using fingerprint or face recognition on supported devices. No need to type your password every time — just tap and you are in.
The 399det app is optimised for Bangladesh mobile networks. Low data mode reduces bandwidth usage without sacrificing speed, so you can bet smoothly even on a 3G connection.
Getting the 399det app on your phone is quick and straightforward. The process is slightly different for Android and iOS, but either way it takes less than five minutes from start to first bet. Here is exactly what to do depending on your device.
The 399det app for Android is available as a direct APK download from this page. Because it is not distributed through the Google Play Store, you will need to allow installation from unknown sources in your phone settings — this is a standard step for any APK and takes about ten seconds to enable.
For iOS users, the 399det app can be added to your home screen directly from Safari as a Progressive Web App. This gives you a near-native app experience with push notifications, fast loading, and a home screen icon — no App Store required.
Safe to Install: The 399det APK is scanned and verified before every release. It contains no malware, no spyware, and no hidden permissions. You only need to grant the standard permissions required for a betting app — camera for KYC, storage for downloads, and notifications for alerts.
Android Settings Note: Before installing the 399det APK, go to Settings > Security > Install Unknown Apps and enable it for your browser. You can turn this off again after installation is complete.
Already Have an Account? Just download the 399det app, open it, and log in with your existing credentials. Your balance, bet history, and bonuses are all synced automatically. No need to register again.
Click the "Download for Android APK" button on this page. The 399det APK file will begin downloading to your phone immediately.
Go to Settings > Security > Install Unknown Apps and allow your browser to install APK files. This is a one-time step.
Find the 399det APK in your Downloads folder and tap it. Follow the on-screen prompts to complete the installation.
Open the 399det app, log in with your existing account or register a new one in two minutes. Your account is ready to use immediately.
On your iPhone or iPad, open Safari and navigate to 399det.app. Make sure you are using Safari — this feature does not work in Chrome or Firefox on iOS.
Tap the Share icon at the bottom of the Safari browser (the square with an arrow pointing up).
Scroll down in the share menu and tap "Add to Home Screen". Give it a name and tap Add. The 399det app icon will appear on your home screen.
Tap the 399det icon on your home screen to launch the app. Log in or register and you are ready to bet, play, and withdraw in BDT.
Both options give you full access to 399det, but the app delivers a noticeably better experience for regular players.
| Feature | 399det App | Mobile Browser |
|---|---|---|
| Load Speed | Under 2 seconds | Depends on network |
| Push Notifications | Yes — live alerts | Not available |
| Biometric Login | Fingerprint / Face ID | Not available |
| Stay Logged In | Automatic | Session may expire |
| Low Data Mode | Built-in | Not available |
| Offline Access | Cached content | Requires connection |
| Full Game Library | All games | All games |
| BDT Payments | bKash, Nagad, Rocket | bKash, Nagad, Rocket |
"The 399det app loads so fast on my Xiaomi. I use it every day for football betting. The live odds update in real time and I have never had a crash. Withdrawals to bKash are always done within 10 minutes."
"I was using the browser before but switched to the 399det app last month. The difference is huge — fingerprint login, push notifications for bonuses, and it works fine even on my slow connection in Sylhet."
"Color Game and Dragon Hatch run perfectly on the 399det app. The graphics are smooth and I have not had any lag. The bonus notifications are really useful — I caught a reload offer I would have missed on the website."
Common questions from Bangladesh players about downloading and using the 399det app.