The 3999 Bit app brings the full casino experience to your Android phone. Deposit in BDT, play 200+ games and withdraw your winnings — all without opening a browser. Fast, lightweight and designed for the way people in Bangladesh actually use their phones.
Installation Guide
The 3999 Bit app is an APK file — it installs directly on your Android phone in under a minute. No app store needed.
Hit the "Download APK" button on this page. The file is small — under 15 MB — so it downloads fast even on mobile data.
Go to Settings → Security → enable "Install from Unknown Sources" for your browser. This is a one-time step required for APK installs.
Open the downloaded file from your notifications or file manager and tap Install. The 3999 Bit app will appear on your home screen.
Open the app, log in with your 3999 Bit credentials or register a new account. Your welcome bonus is applied automatically on first deposit.
Android only: The 3999 Bit app is currently available for Android devices running version 6.0 and above. iOS users can access the full site via their mobile browser at 3999-bit.net — the experience is just as smooth.
App Features
The 3999 Bit app is not just a reskin of the website. It is built from the ground up for Android phones used in Bangladesh — fast connections, small screens and mobile payment habits included.
The 3999 Bit app connects directly to Bangladesh's most popular mobile wallets. Deposit in BDT with a few taps — no bank account, no card required. Funds appear in your account within seconds.
Every game in the 3999 Bit library — fishing games, slots, live casino tables and Plinko — is fully optimised for touch screens. No lag, no broken layouts, just smooth gameplay on any Android device.
Never miss a promotion again. The 3999 Bit app sends push notifications when new bonuses go live, when your withdrawal is processed and when exclusive app-only offers are available.
Log in to your 3999 Bit account with your fingerprint on supported Android devices. No typing, no delays — just a quick touch and you are straight into your games and balance.
The 3999 Bit app is built to work well even on slower mobile connections. Low data mode reduces background usage so you can keep playing without burning through your data plan.
The 3999 Bit support team is available 24/7 directly inside the app. Open a live chat without leaving your game — get help with deposits, withdrawals or account issues in real time.
Games on the App
The full 3999 Bit game library is available on the app — no compromises. Whether you prefer fishing games, live dealer tables or fast-paced slots, everything loads instantly on Android.
App Specifications
| Platform | Android 6.0 and above |
| File Size | Under 15 MB |
| Language | English |
| Currency | BDT (Bangladeshi Taka) |
| Payment Methods | bKash, Nagad, Rocket |
| Games Available | 200+ titles |
| Updates | Automatic in-app updates |
| Support | 24/7 live chat in-app |
Get the App
Direct APK download for all Android devices running version 6.0 and above. Free to download, free to install.
Download APKOn iOS or prefer not to install an app? The full 3999 Bit experience is available in your mobile browser — no download needed.
Open in BrowserMost players in Bangladesh use their phone for everything — shopping, banking, entertainment. The 3999 Bit app fits right into that habit. Instead of opening a browser, typing in the address and waiting for the site to load, you just tap the app icon and you are in. It sounds like a small thing but when you are trying to catch a bonus window or jump into a live casino table before it fills up, those seconds matter.
The app is also noticeably faster than the browser version on most mid-range Android phones. It caches game assets locally so popular titles like Jackpot Fishing and Fortune Mouse load almost instantly after the first session. If you are on a slower connection — say, 3G in a rural area — the difference is even more obvious.
App-exclusive offers: 3999 Bit regularly runs promotions that are only available to players using the Android app. Download it and check the promotions tab after logging in.
One of the biggest reasons players stick with the 3999 Bit app is how easy it makes deposits and withdrawals. The app has a dedicated payments section where you can send money from bKash, Nagad or Rocket in a few taps. There are no hidden fees on deposits, and the minimum deposit is just ৳100 — low enough that anyone can top up without committing a large amount.
Withdrawals work the same way. Request a payout from inside the app, choose your wallet and the money arrives within two hours during normal business hours. For players who have been burned by slow or complicated withdrawal processes on other platforms, this is a genuine difference.
Fishing games are the most popular category on 3999 Bit, and they play especially well on the app. The touch controls feel natural — tap to aim, hold to charge, swipe to switch weapons. Jackpot Fishing and Fierce Fishing both run at a smooth frame rate even on older Android devices, and the app's low data mode means you can play a full session without worrying about your data balance.
Ice and Fire is another standout on mobile. The dual-element mechanic translates well to a touch interface, and the visual effects — which look great on modern AMOLED screens — are fully supported in the app version.
Tip: Lock your screen orientation to landscape for the best fishing game experience on the 3999 Bit app. Most titles are designed for horizontal play.
Security on the app is the same standard as the desktop platform — 256-bit SSL encryption on all connections, OTP verification for suspicious logins and automatic session timeout after inactivity. The biometric login feature adds an extra layer of convenience without sacrificing security: your fingerprint data never leaves your device.
If you ever lose your phone or suspect your account has been accessed without your permission, contact the 3999 Bit support team immediately via live chat. The team can lock your account within minutes and help you recover access after verifying your identity.
Is the 3999 Bit app free to download?
Yes, completely free. Download the APK from this page at no cost. There are no subscription fees or hidden charges for using the app.
Does the app work on iOS?
The 3999 Bit app is currently Android-only. iPhone and iPad users can access the full platform through their mobile browser — the site is fully responsive and works well on Safari.
Will the app drain my battery quickly?
The 3999 Bit app is optimised for battery efficiency. Low data mode also reduces background processing. That said, live casino games and fishing titles with heavy graphics will use more battery than simpler games — this is normal for any gaming app.
How do I update the app?
The 3999 Bit app checks for updates automatically when you open it. If a new version is available, you will see a prompt to download and install it. Updates are small and fast.
For more help, visit the 3999 Bit FAQ page.
Install the free Android app, register your account and make your first BDT deposit to unlock your welcome bonus. 200+ games are waiting — fishing, live casino, Plinko and more.
18+ only. Please play responsibly. Responsible Gaming