Official Mobile App
B3999 App — Play and Win Anytime, Anywhere
The b3999 app turns your smartphone into a full gaming platform. Live Casino, Sports Betting, fish games — all in one place, anytime you want.
The b3999 app turns your smartphone into a full gaming platform. Live Casino, Sports Betting, fish games — all in one place, anytime you want.
Smartphone usage in Bangladesh is growing every day, and b3999 has risen to the occasion with a standout mobile experience. The b3999 app is built specifically with Bangladeshi users in mind — low data usage, fast loading, and a fully localized interface.
The moment you open the app after downloading it, you'll notice how clean and easy it is to navigate. You can jump straight to your favorite game or sports match right from the home screen. Once logged in to the b3999 app, your balance, active bets, and recent transactions are all visible at a glance.
The b3999 app works reliably even on slower mobile data connections. At just 38 MB, it still delivers every feature available on the full website — Mobile Banking and Nagad deposits and withdrawals, live score updates, push notifications, and more.
The b3999 app is also built with strong security in mind. Fingerprint and face unlock support, device-level encryption, and an auto-logout feature all keep your account safe from unauthorized access. Regular monthly updates bring new features and security patches.
All your personal information is encrypted while using the b3999 app and is never shared with third parties. Read our Privacy Policy Read it.
No matter what brand of phone you use, the b3999 app is ready for you.
Works on all Android phones including Samsung, Xiaomi, Realme, and Oppo. Download the APK file directly from our site.
Android DownloadA seamless gaming experience on iPhone and iPad. Smooth animations and Retina display support.
iOS Download
The full b3999 platform experience, all in one app.
Bet on cricket, football, tennis, and more with real-time odds updates on live matches.
Roulette, Baccarat, Blackjack — play live with professional dealers in real time.
The full fish game experience — vibrant graphics and smooth gameplay — now right on your mobile.
Get instant notifications for match results, special offers, and deposit confirmations.
Log in quickly and securely using your fingerprint or Face ID.
Deposit and withdraw directly through the app via Mobile Banking, Nagad, and Rocket.
Installing the APK on your Android phone is quick and easy. Just follow the steps below.
Visit the b3999 download page and choose the Android APK or iOS link.
On Android, go to Settings > Security > Unknown Sources and enable it to allow APK installation.
Tap the downloaded file to install. It takes just 30 seconds.
Open the app, log in to your b3999 account, and start playing.
| Features | Details |
|---|---|
| Android Version | 6.0 or above |
| IOS Version | 13.0 or above |
| Android Size | 38 MB |
| IOS Size | 42 MB |
| Language | Bangla, English |
| Update Frequency | Every month |
| Encryption | 256-bit SSL |
| Payment Support | Mobile Banking, Nagad, Rocket, Bank |
As soon as you open the b3999 app, you're greeted by a clean home screen featuring live matches in progress, popular games, and exclusive offers tailored just for you. The design is intentionally simple so even new users can find their way around with ease.
In the Sports Betting section, cricket takes centre stage — and for good reason, since it's a passion for fans across Bangladesh. BPL, IPL, international matches — live odds and match status update continuously in the app. Confirm your bet with just a single tap.
Step into the Live Casino section and you'll find hundreds of tables running at any given time. Baccarat, Andar Bahar, Teen Patti, Roulette — every game is designed with a familiar environment for Bangladeshi players. Live dealers can speak in Bangla too, making the whole experience feel right at home.
The fish games section is hugely popular among younger players. The colorful graphics and straightforward gameplay make it a fun option even for beginners. Fish games on the b3999 app are specially optimized for mobile screens, so there's no lag or freezing.
Everything you need to know about the b3999 app.
Download for free, register in minutes, and start playing with a bonus.