Download the bet399 app and carry the full casino experience wherever you go. Slots, live tables, crash games, and sports betting — all optimised for your phone.
Free to download · No hidden charges · 18+ only
The bet399 app is not just a smaller version of the website. It is a purpose-built mobile experience designed around how players in Bangladesh actually use their phones.
The bet399 app is engineered for speed on mobile data. Whether you are on 4G or a patchy connection, games load fast and stay smooth. No more waiting for pages to refresh — just tap and play.
Skip typing your password every time. The bet399 app supports fingerprint and face ID login on compatible devices. One touch and you are inside your account — faster than any browser login.
Never miss a bonus again. The bet399 app sends you real-time push notifications for new promotions, deposit bonuses, free spins, and live game alerts — so you are always first in line for the best deals.
Every game available on the bet399 website is also available in the app — slots, live casino, crash games, and sports betting. The full library, fully optimised for touchscreen play on any screen size.
Top up your bet399 account or request a withdrawal in seconds from the app. Local payment methods including bKash, Nagad, and Rocket are fully supported, with most withdrawals processed within minutes.
The bet399 app uses SSL encryption on every connection and monitors for unusual activity around the clock. Your account, your balance, and your personal data are protected at all times — on any network.
Getting the bet399 app on your phone takes less than two minutes. Follow these steps and you will be playing within moments.
Go to the Download page on bet399 using your Android phone's browser. The APK download button is right at the top.
Go to Settings → Security and enable "Install from Unknown Sources" or "Install Unknown Apps" for your browser. This is a one-time step.
Tap the APK download button, wait for the file to download, then tap the file to install. The whole process takes under a minute.
Open the bet399 app, login with your existing account or register for free, and start playing. Your balance and bonuses are already there.
Visit the bet399 Download page using Safari on your iPhone or iPad. The iOS install option will be displayed automatically.
Tap the Share icon at the bottom of Safari, then select "Add to Home Screen". Give it a name and tap Add to confirm.
The bet399 app icon will appear on your home screen just like any other app. Tap it to launch the full mobile casino experience instantly.
Login with your bet399 account or register in under two minutes. All your games, bonuses, and balance are ready and waiting for you.
| File Format | APK |
| File Size | ~18 MB |
| Min Android Version | Android 6.0 (Marshmallow) |
| Recommended RAM | 2 GB or higher |
| Internet Required | Yes (Wi-Fi or mobile data) |
| Auto-Update | In-app notification |
| Biometric Login | Supported |
| Push Notifications | Supported |
| Install Method | PWA (Add to Home Screen) |
| Storage Used | Minimal (browser-based) |
| Min iOS Version | iOS 13 or later |
| Compatible Devices | iPhone, iPad |
| Internet Required | Yes (Wi-Fi or mobile data) |
| Auto-Update | Automatic (always latest) |
| Biometric Login | Face ID / Touch ID supported |
| Push Notifications | Supported on iOS 16.4+ |
Most players in Bangladesh access the internet primarily through their smartphones. That is just the reality of how things work here — mobile data is affordable, phones are powerful, and nobody wants to be tied to a desktop just to place a bet or spin a slot. The bet399 app was built with exactly this in mind. It is not a desktop site squeezed onto a small screen. It is a ground-up mobile experience that feels natural, fast, and genuinely enjoyable to use on a phone.
When you open the bet399 app, the first thing you notice is how quickly everything loads. The app is lightweight by design — the Android APK is only around 18 MB — which means it installs fast and does not eat into your phone storage. More importantly, it is optimised for mobile data connections, so even if you are on a 4G connection rather than Wi-Fi, games load without the buffering and stuttering you might experience on a regular browser.
The bet399 app gives you access to the complete game library — no compromises. That means all the popular slots, every live casino table, all the crash games, and the full sports betting section are right there in your pocket. Games like High Roller, Dragon Fortune, Ocean Lord, Super Wheel, and Crash Goal are all fully playable on the app with the same graphics and gameplay as the desktop version.
Live casino games deserve a special mention. Playing live roulette, live baccarat, or live blackjack on the bet399 app is a genuinely great experience. The video streams are smooth, the interface is clean, and the touch controls feel intuitive. You can sit at a live table from anywhere — your commute, your lunch break, wherever — and it feels just as immersive as playing on a big screen.
Managing your money through the bet399 app is straightforward. The cashier section is easy to find and supports all the local payment methods that Bangladeshi players use — bKash, Nagad, Rocket, and bank transfer. Deposits are credited instantly in most cases, and withdrawal requests are processed quickly. You do not need to switch to a desktop to handle your finances; everything is right there in the app.
The minimum deposit amount is kept low so that players of all budgets can enjoy the bet399 app without feeling pressured to spend more than they are comfortable with. And if you have a welcome bonus or reload bonus active, the app shows your bonus balance clearly alongside your real money balance so you always know exactly what you are working with.
Security is something bet399 takes seriously across every platform, and the app is no exception. All data transmitted through the bet399 app is encrypted using SSL, the same standard used by banks and financial institutions. The app also supports biometric authentication — fingerprint on Android and Face ID or Touch ID on iPhone — so your account is protected even if someone else picks up your phone.
The app does not store your password on your device. Instead, it uses a secure token system that keeps your session active without exposing your credentials. If you log out or if the session expires, you will need to authenticate again before accessing your account. This is by design — it keeps your balance and personal information safe at all times.
The bet399 app is updated regularly to add new games, improve performance, and patch any security issues. On Android, the app will notify you inside the app when a new version is available — just tap the update prompt and the latest APK will download and install automatically. On iOS, the PWA version always loads the latest version automatically since it runs through your browser, so there is nothing extra you need to do.
Keeping the app updated ensures you always have access to the newest games and the best performance. It also means you benefit from the latest security improvements, which is important for keeping your account and your money safe.
The bet399 app is intended for players aged 18 and above. Please play responsibly and within your means. If you ever feel that gambling is affecting your daily life, visit our Responsible Gaming page for guidance and support tools. For any questions about the app, check our FAQ page or contact our 24/7 live support team directly from within the app.
Join over 500,000 players who already enjoy the full bet399 casino experience on their phones. Free to download, instant to set up.