The 3999 app puts Bangladesh's best online gaming platform right in your pocket. Faster login, smoother gameplay, instant bKash and Nagad deposits — everything you love about 3999, optimised for your phone. Download it now and never miss a game.
Most Bangladesh players already do everything on their phone — banking, shopping, chatting. So it makes sense that the best way to enjoy 3999 is through the dedicated 3999 app. The app is built from the ground up for mobile, which means it is faster, smoother and more responsive than opening a browser and typing in a URL every time.
When you use the 3999 app, your login details are saved securely on your device. That means you tap once and you are in — no typing, no waiting. For players who log in multiple times a day to check promotions or jump into a quick game of Monster Hi-Lo or Go Goal Bingo, this alone saves a lot of time and frustration.
The 3999 app also supports push notifications. When a new daily bonus drops, when your withdrawal is processed or when a special event goes live, you get an alert straight to your phone. You do not need to keep checking the website — the 3999 app keeps you informed automatically.
For Bangladesh players on mobile data, the 3999 app is also more data-efficient than the browser version. The app loads only what it needs, which means games start faster even on a slower Grameenphone or Robi connection. Whether you are in Dhaka, Sylhet or a smaller town, the 3999 app is designed to work well on the kind of connections real Bangladesh players actually use.
Installing the 3999 app takes less than two minutes. Follow the steps below for your device type.
Click the "Download Android APK" button on this page. The 3999 APK file will begin downloading to your phone immediately — it is only about 5MB so it downloads fast even on mobile data.
Since the 3999 app is downloaded directly (not from the Play Store), Android will ask you to allow installation from unknown sources. Go to Settings → Security → enable "Install unknown apps" for your browser or file manager. This is a standard one-time step for any direct APK install.
Go to your Downloads folder and tap the 3999 APK file. Android will show an install prompt — tap "Install" and the process completes in seconds.
Find the 3999 icon on your home screen, tap it and login with your registered mobile number and password. If you do not have an account yet, tap "Register" to create one for free.
Tap the "Download for iOS" button on this page from your iPhone or iPad browser. You will be guided through the installation process for your device.
On iOS, go to Settings → General → VPN & Device Management and tap "Trust" next to the 3999 developer profile. This is a standard step for apps installed outside the App Store.
The 3999 icon will appear on your home screen. Tap it to open the app, then login or register to get started.
Only download the 3999 app from this official page at 3999.one/app. Do not install APK files from third-party websites or Telegram groups — they may be modified versions that put your account and device at risk.
The 3999 app is not just a stripped-down version of the website. It is a fully featured platform that gives you access to everything 3999 has to offer, all from your phone:
The 3999 app is updated regularly. When a new version is available, you will see an in-app notification prompting you to update. Always keep the app up to date to get the latest features and security improvements.
The 3999 app is designed to run on a wide range of devices, including older Android phones that are common in Bangladesh. Here are the minimum requirements:
| OS Version | Android 6.0 or higher |
| RAM | 1 GB minimum |
| Storage | 20 MB free space |
| Internet | 3G / 4G / Wi-Fi |
| APK Size | ~5 MB |
| OS Version | iOS 13.0 or higher |
| Device | iPhone 7 or newer |
| Storage | 30 MB free space |
| Internet | 4G / Wi-Fi recommended |
| App Size | ~8 MB |
Built for mobile, built for Bangladesh — here is what makes the 3999 app stand out.
The 3999 app loads games and pages significantly faster than opening a mobile browser. Less waiting, more playing — especially noticeable on 3G connections common across Bangladesh.
Deposit and withdraw using bKash, Nagad or Rocket without ever leaving the 3999 app. The payment flow is integrated directly, so top-ups take seconds and funds appear instantly in your balance.
Enable push alerts and the 3999 app will notify you the moment a new daily bonus, reload offer or special event goes live. You will never miss a promotion again just because you were not actively checking the site.
On compatible Android and iOS devices, the 3999 app supports fingerprint and face unlock. One touch and you are in — no typing your password every single time you want to play.
Every session in the 3999 app is protected by SSL encryption. Your login credentials, payment details and personal data are never stored in plain text. The app also supports OTP two-factor verification for extra peace of mind.
The 3999 app is optimised to run smoothly on Android 6.0 and above, which covers the vast majority of phones used in Bangladesh today — including budget devices from Symphony, Walton and Samsung's entry-level range.
Everything Bangladesh players ask about downloading and using the 3999 app.