Install the 399k app on any smartphone and enjoy hundreds of games — slots, betting, fish games, and more — whenever and wherever you want.
The 399k app can be used in three ways — pick whichever works best for you
Download the APK File Directly
Easy installation on iOS devices
Play without any download
A Simple Step-by-Step Guide — For Both Android and iOS
Start by registering on 399k. You can create an account with your mobile number in just two minutes.
Go to Settings > Security or Privacy on your phone and enable "Unknown Sources" or "Install Unknown Apps". This is required to install APK files.
Tap the APK button on the 399k download page. The file will save to your Downloads folder in just a few seconds.
Once the download is complete, tap the notification or open the APK from your file manager. Then tap "Install".
Once installed, tap the 399k icon, log in to your account, and choose the game you want to play.
On your iPhone or iPad, open 399k.pro in Safari. Other browsers work too, but Safari gives you the best experience.
Tap the Share icon (box with an upward arrow) at the bottom or top of your screen.
Find "Add to Home Screen" in the Share menu and tap it. Add it directly without changing the name.
You'll now see the 399k icon on your home screen. It works just like an app — opening in full screen.
Tap the icon, log in to your account, and jump straight into any 399k game.
Why the app delivers a better experience than the browser alone
The 399k app loads three times faster than a browser. Games run smoothly even on a weak connection.
Get instant push notifications for bonus offers, jackpot updates, and new game launches.
No need to type your password every time. Log in instantly with your fingerprint or Face ID.
All transactions within the app are SSL encrypted, keeping your personal information and funds fully secure.
Turn on Dark Mode for late-night sessions. It's easier on the eyes and saves battery life.
The 399k app updates itself automatically, so you always have the latest games and features without lifting a finger.
See the key differences between both methods at a glance and decide which one works best for you.
| Features | 399k App | Mobile Browser |
|---|---|---|
| Loading Speed | Very Fast | Moderate |
| Push Notifications | Yes | Limited |
| Biometric Login | Yes | No |
| Offline Mode | Partial | No |
| Dark Mode | Yes | Browser-Dependent |
| Installation Required | Yes (10 MB) | No |
| Battery Usage | Less | More |
| Works on All Devices | Android & iOS | All Devices |
Online gaming in Bangladesh is no longer limited to desktop computers. Millions of people now play their favorite games on mobile — at home, on the go, or during a quick break. 399k understands this demand and has built a lightweight, fast, and easy-to-use mobile app to meet it.
Many people assume mobile gaming means large downloads and a storage headache. But the 399k APK is just 10 MB — it runs smoothly on any standard smartphone, including older models, with no issues.
Android users can install the app by downloading the APK directly. The whole process takes just five steps and doesn't take long even the first time around. Simply enable the Unknown Sources option in your settings and the installation goes through without a hitch. iPhone and iPad users can add 399k to their home screen via Safari for a full app-like experience.
Open the 399k app and you're greeted by a clean, well-organized interface. Slots, betting, fish games, and Live Casino each have their own dedicated tab, making it easy for anyone — even first-timers — to find what they're looking for. Menus and descriptions in Bangla mean there's no language barrier to worry about.
For deposits and withdrawals, 399k supports Mobile Banking, Nagad, and Rocket — keeping Bangladeshi users in mind. You can deposit in seconds and withdraw your winnings instantly, all within the app. No bank account needed.
399k never compromises on security. Every transaction in the app is protected with 256-bit SSL encryption, and your personal data is never shared with third parties. Enabling two-factor authentication (2FA) adds an extra layer of protection to your account.
399k takes game quality seriously. The app features slots, live dealer tables, Sports Betting, and fish shooting games from the world's top providers. New games are added every week, so even long-time players always have something fresh to discover.
First-time 399k users are greeted with a special welcome bonus package. The bonus activates right after registration, and your first deposit comes with extra benefits. Free spins are also included, letting you try out slots with no risk.
Simply put, the 399k app is the most convenient solution for gamers in Bangladesh. Small file size, fast performance, a Bengali interface, Mobile Banking payments, and a secure environment — together, 399k takes your mobile gaming experience to a whole new level.
Frequently Asked Questions About the 399k Download
Responsible Gaming Notice: 399k is strictly for users aged 18 and above. Play for entertainment and never bet beyond your means. To learn more, visit our Responsible Gaming Guidelines and Terms and Conditions Read.