399dbt | Download the App Free for Android and iOS

399dbt Mobile App – What makes it different?

Smartphones have become part of our daily lives — from morning shopping and bill payments to streaming movies, it all fits in the palm of your hand. 399dbt is no different. Download the mobile app and enjoy the full platform experience in one compact app.

No browser login hassle, no repeated password entry. Once installed, everything is just one tap away. Live Casino, Slots, Fish Game — it's all in the app. The entire 399dbt experience, right in your hand.

The app is designed with Bangladeshi users in mind. It runs smoothly on slow connections, uses less data, and is easy on battery life. All buttons are clearly visible and easy to tap even on smaller screens.

Mobile Optimised Fast Loading Lower data usage Battery Efficient

Which platform do you want to download on?

The 399dbt app is available for both Android and iOS.

🤖 Android 5.0+

Android App

Most people in Bangladesh use Android phones, and the 399dbt Android app runs smoothly on all popular brands including Samsung, Xiaomi, Realme, and Symphony. The APK file is just 5 MB, so it downloads in seconds.

Minimum OSAndroid 5.0 (Lollipop)
File Size5.2 MB
UpdateAutomatic
RAMAt least 1 GB

Download for Android

🍎 iOS 12.0+

IOS App

399dbt has a dedicated iOS app built for iPhone and iPad users. Designed to align with Apple's security standards, the app is highly stable and fast — with Face ID and Touch ID support.

Minimum OSiOS 12.0
File Size6.8 MB
UpdateAutomatic
DeviceiPhone / iPad

Download for iOS

Important note for Android users

Due to certain restrictions on gaming apps in the Google Play Store, the 399dbt Android APK must be downloaded directly from the official site. Before installing, go to your phone's Settings and enable "Unknown Sources" or "Install Unknown Apps".

How do I install the 399dbt app on Android?

Install the 399dbt app on your Android phone in just a few simple steps. The whole process takes only 2 minutes.

Open Settings

Go to your phone's Settings and tap on "Security" or "Privacy". From there, enable the "Install Unknown Apps" or "Unknown Sources" option.

Visit the Official Site

Open the 399dbt official website in your phone's browser and go to the download page.

Download APK

Tap the "Download Android APK" button. The file will be saved automatically to your phone's Downloads folder.

Open the APK file

Tap the downloaded APK file in your File Manager or notification bar, then tap "Install".

Installation complete – Log in

Once installation is complete, tap "Open". Log in to your 399dbt account and start playing.

How do I install the 399dbt app on iPhone?

Installation on iOS is even more straightforward. For best results, use the Safari browser.

Open Safari

Open Safari on your iPhone or iPad. The installation process is simpler and more secure in Safari than in Chrome or any other browser.

Visit 399dbt

Visit the official website and go to the iOS download page.

Download iOS App

Tap the "Download iOS App" button. When a prompt appears on screen, select "Allow" or "Trust".

Trust the Profile

Go to Settings > General > VPN & Device Management. Find the 399dbt profile and tap "Trust".

Launch the app

You'll see the 399dbt app icon on your Home Screen. Tap it, log in to your account, and start playing.

What you get with the 399dbt app

Everything available on the website is also in the app — plus a few extra features on top.

All Games in One Place

Live Casino, Slots, Fish Game, Sports Betting — play every type of game from a single app. No need to download separate apps.

Instant Deposits & Withdrawals

Deposit and withdraw directly from the app via bKash, Nagad, and Rocket — no need to open a browser. It's done in moments.

Push Notifications

Get instant alerts on your phone for new bonuses, promotions, and withdrawal confirmations. Never miss an offer.

Biometric Login

In-App Live Support

Live chat with the support team directly from within the app. Send screenshots, describe your issue, and get help fast.

Dark Mode Support

Turn on Dark Mode for a more comfortable gaming experience in low-light conditions at night. Easier on the eyes and less strain overall.

App vs. Browser – Which is better?

A quick comparison between the 399dbt mobile app and the browser version.

Features	Mobile App	Browser
Loading Speed	⚡ Much Faster	Moderate
Push Notifications	✔ Yes	✘ No
Biometric Login	✔ Yes	✘ No
Data Usage	✔ Low	High
Auto Login	✔ Yes	Limited
In-App Support	✔ Yes	✘ No
Battery Usage	✔ Low	High
Exclusive Offers	✔ Available	✘ No

System Requirements & Compatibility

The 399dbt app doesn't require a high-end phone. It runs smoothly on any mid-range smartphone commonly used in Bangladesh.

Android

OSAndroid 5.0+
RAM1 GB+
Storage20 MB free
Internet3G / 4G / Wi-Fi
ProcessorQuad-core+

iOS

OSiOS 12 .0+
DeviceiPhone 6s+
Storage30 MB free
Internet3G / 4G / Wi-Fi
RAM2 GB+

Compatible Brands

The 399dbt app has been tested and confirmed compatible with Samsung, Xiaomi, Realme, OPPO, Vivo, Huawei, Symphony, Walton, Nokia, and iPhone models from the 6s up to the latest.

Things to keep in mind before and after installation

Follow these tips to get the most out of the 399dbt app.

Always download the APK from the official 399dbt site. Downloading from third-party sites carries security risks.
After installation, allow the app to send notifications so you never miss a bonus or promotion update.
Keep your app updated regularly. Updates bring new features and fix existing issues.
Avoid logging into your account over public Wi-Fi. Mobile data or your home Wi-Fi is much safer.
Never share your app login details with anyone. Always keep your account to yourself.
If you run into issues with the app, try clearing the cache first, or uninstall and reinstall the app.
Low storage can slow the app down. Try to keep at least 500 MB of free storage on your device.
VIP members get exclusive special offers on the app. Joining the VIP programme takes your app experience to the next level.

Common Issues & Solutions

APK won't install

Make sure "Unknown Sources" is enabled in Settings. If the problem persists, delete the APK file and download it again.

App keeps crashing

This issue may occur when your phone is low on RAM. Close any apps running in the background and restart the 399dbt app.

Unable to Log In

Check your internet connection. If you've forgotten your password, recover it from the login page or contact support.

Game is taking too long to load

This is usually caused by a slow connection. Switch to Wi-Fi or a 4G network. Clearing the app's cache may also fix the issue.

Frequently Asked Questions

Answers to the most frequently asked questions about the 399dbt app download.

Yes, the 399dbt app is completely free to download and install. There are no charges for either the Android or iOS version. You only need a separate balance for deposits and gameplay.

Yes. The 399dbt app runs on any phone with Android 5.0 and at least 1 GB of RAM. It has been successfully tested on budget-friendly brands like Symphony and Walton.

Yes, you can use 399dbt on the browser and have the app installed on the same phone at the same time. That said, the app delivers the best experience — it's faster and packed with more features.

An update notification will appear automatically when you open the app. On Android, just download the new APK and install it over the existing one. On iOS, keep automatic updates turned on.

No. Uninstalling the app only removes it from your phone. Your 399dbt account, balance, and transaction history remain safely stored on our servers. Just reinstall the app, log back in, and everything will be exactly as you left it.

Yes, every game available on the 399dbt website is also available on the app. All categories — including Live Casino, Slots, and Fish Game — are fully active on the app. Some exclusive offers are even available to app users only.