The 399btc app is available on both Android and iOS. Fast loading, smooth gameplay, and seamless Live Casino — all right on your smartphone.
Whatever device you have, the 399btc app runs on it.
The 399btc app works on any phone or tablet running Android 6.0 or above. Download the APK file directly from our site.
IPhone and iPad users can add a shortcut to their home screen directly from our mobile website for an app-like experience.
Open 399btc.win in any modern browser and enjoy the full gaming experience without installing anything.
Millions of people in Bangladesh now do everything on mobile — shopping, banking, entertainment. 399btc built its mobile app with exactly that in mind. It's not just a scaled-down website — it's a completely distinct experience, designed specifically for smartphones.
The moment you open the app for the first time, you'll notice how light and fast it is. At just 50 MB, it barely touches your phone's storage — yet it packs the full 399btc casino experience, including Live Dealer, slots, Crash, Bingo, and 500+ games.
The app's interface is designed for English-speaking users, so navigation is straightforward. From the menu to game loading, everything is accessible in one place. Place bets, make deposits, and process withdrawals — all from a single screen in just a few taps.
Another great feature of the app is push notifications. New bonus offers, tournament starts, or big win alerts — everything reaches your phone instantly. No need to sit at a desktop waiting. Wherever you are, 399btc is always with you.
Network issues mid-game? No problem. The 399btc app automatically reconnects and lets you pick up exactly where you left off. No need to worry about losing your game session.
399btc takes security seriously. You can log in with fingerprint or Face ID, every transaction is protected by SSL encryption, and any suspicious activity triggers immediate account protection.
Installing the 399btc app is quick and easy. Just follow the steps below.
Go to our download page and choose the Android APK or iOS guide. No third-party sites needed.
Enable installation from "Unknown Sources" on Android. Go to Settings > Security > Unknown Apps to turn this on.
Tap the APK file and press "Install". The installation completes in as little as 30 seconds.
Open the app, log in to your 399btc account, and start playing right away.
Some games can be practiced offline when your connection is weak. Once you're back online, the app switches to live mode automatically.
Get push notifications before a bonus expires, when a tournament kicks off, or whenever a special offer goes live.
No more remembering passwords. Log in instantly with your fingerprint or Face ID in under a second.
If you have Mobile Banking, Nagad, or Rocket saved, your next deposit takes just a single tap.
Your full game history, bets, wins, and losses are all saved in the app. Check them anytime.
Contact our support team without leaving the app. Help is available 24/7.
| Features | 399btc App | Mobile Browser |
|---|---|---|
| Loading Speed | Blazing Fast | Medium |
| Push Notifications | Yes | None |
| Biometric Login | Yes | None |
| Offline Practice | Yes | None |
| Game History | Full | Limited |
| Battery Usage | Low | High |
| In-App Chat | Yes | Partial |
It's natural to be concerned about security when using an online gaming app. 399btc takes this seriously. The app uses bank-grade SSL encryption to keep your personal data and financial transactions fully protected.
Even if the app is installed on your phone, no one else can access it — every session requires biometric or PIN verification. If a login attempt is made from an unrecognized device, an OTP is sent to your number immediately.
399btc does not share user data with any third parties. Our privacy policy is clear — your information is yours, and we only use it to deliver the best possible experience.
Read Privacy PolicyThe 399btc app is updated monthly. Each update brings new games, improved performance, and features based on user feedback. Updates run automatically in the background, so you don't need to do anything.
Thousands of players in Bangladesh are already using the 399btc app to game from anywhere. Join them and experience mobile gaming at its best.