Download the 3777b app on both Android and iOS and get Live Betting, slots, Live Casino, and much more right at your fingertips.
A whole new mobile gaming experience
Built with millions of gaming enthusiasts across Bangladesh in mind 3777b has built an outstanding mobile app. It runs smoothly on both Android and iOS devices and delivers great performance across all network conditions. Even on a slow internet connection, the 3777b app works without any lag.
Opening the 3777b app gives you every betting and gaming option in one place. From live Sports Betting on cricket, football, and kabaddi to Live Casino games like blackjack, roulette, and baccarat — it's all inside the app. The interface is fully set up for local users, so navigation is straightforward.
Many people assume mobile apps don't have all the features of the desktop site. With the 3777b app, you get every feature the full website offers. Deposits, withdrawals, bonus claims, live chat support — nothing is left out. And thanks to push notifications, you'll be the first to know about match updates and special offers.
Downloading the 3777b app is completely free. The APK file can be downloaded directly from our site, or iOS users can add it to their home screen via Safari. The whole installation process takes no more than two minutes.
Your personal information stays fully protected while using the 3777b app. The app does not collect any unnecessary data. For more details, visit our Privacy Policy Read.
Everything available on the 3777b app at a glance
Bet with real-time odds as the game unfolds. Make your call at any moment in the match.
Watch HD live match streams right inside the app. Adjust your bets as the action unfolds.
Get instant alerts for match starts, bonus offers, and important updates.
Log in quickly and securely using your fingerprint or Face ID. No need to remember your password.
Use Mobile Banking, Nagad, and Rocket directly within the app. Deposits and withdrawals take just a few seconds.
Slots, Live Casino, Sports Betting — all game types in one app. No need for separate apps.
Switch to dark mode for a more comfortable viewing experience while playing at night — and save battery too.
Chat with our support team via live chat without leaving the app. Available 24 hours a day.
The 3777b app is separately optimized for both Android and iOS
The 3777b Android app is available as a direct APK download. No Google Play Store needed — install in just a few clicks.
IPhone and iPad users can visit the 3777b site in Safari and add it to their home screen. It runs on PWA technology.
Everything you need to know about the 3777b app
| Features | Android | IOS (PWA) |
|---|---|---|
| Minimum Version | Android 5.0+ | IOS 12+ |
| File Size | ~5 MB (APK) | No download required |
| Installation method | APK file | Safari PWA |
| Update | Manual / Auto | Automatic |
| Biometric Login | Supported | Supported |
| Push Notifications | Supported | Supported on iOS 16.4+ |
| Offline mode | Limited Support | Limited Support |
Get started on the 3777b app in just 4 simple steps
Download the APK for Android or add to your home screen via Safari on iOS.
New users can head to the registration page and create a free account using their mobile number.
Start depositing from as little as BDT 200 via Mobile Banking, Nagad, or Rocket and claim your welcome bonus.
Pick your favorite game — Sports Betting, slots, or Live Casino. Have fun and win big.
At home, at the office, or on the go — everywhere
The 3777b app is a complete gaming solution. Place live cricket bets on the bus to work in the morning, spin the slots on your lunch break, then play baccarat with a live dealer from home at night. With the 3777b app, there are no limits on when or where you play.
The app's security is rock solid. SSL encryption is used on every login. Biometric verification ensures no one else can access your account. All BDT transactions are completely secure.
3777b regularly updates the app to add new features. Each update brings better performance and new games. Your feedback matters to us — let us know your thoughts in the feedback section of the app.
Real experiences from 3777b app users
"Since downloading the 3777b app, I barely need to open my laptop. Everything gets done on my phone. Deposits and withdrawals through Mobile Banking are so much easier now."
"I added it to my home screen via Safari on my iPhone. I wasn't sure it would work at first, but it runs just like a native app. Live Casino is super smooth."
"I've been doing live betting on IPL through the 3777b app. Push notifications mean I never miss a match. The odds here are the best I've found."
Frequently asked questions about the 3777b app
Join thousands of Bangladeshi gamers and enjoy the best betting experience on mobile.