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399db App Download — The best gaming experience on Android & iOS, now right in the palm of your hand

Leave the browser behind, 399dbLog in to the app. Fast loading, smooth gameplay, and exclusive app bonuses — all in one place.

Register Now View Game Lobby
50MB App Size
4.8★ User Rating
24/7 App Support
1,000,000+ Active Users
Choose Your Platform

Based on your device 399db App Download

Android or iPhone — 399dbThe app delivers consistent performance across all devices.

Android App

Latest Version v3.2.1

Works on all Android phones — Samsung, Xiaomi, Realme, Symphony, and any other brand. The APK file can be installed directly.

Android Version 5.0 or above
File Size 48 MB
Update July 2026
Language Bangla, English
Android APK Download

IOS App

Latest Version v3.2.0

Works on both iPhone and iPad. Built to comply with Apple's strict security standards, ensuring a safe and stable experience.

iOS Version 13.0 or above
File Size 52 MB
Update July 2026
Language Bangla, English
iOS App Download
399db

399db — The Ultimate Gaming Experience on Mobile

Why the App?

Than the Browser Playing on the App Why is it better?

Many users play on mobile browsers, 399db but those who've tried the app never go back to the browser. The reason is simple — the app is smoother, faster, and far more convenient.

With a browser, you have to log in every time, pages take longer to load, and open tabs in the background can slow down your game. The app has none of these issues.

399dbOnce installed, the app launches directly from your home screen. You'll receive push notifications for new bonuses, promotions, and tournament updates. Live Casino and slots also run more smoothly on the app, since resources load directly on your device.

Fast Loading

The app loads 3x faster than the browser, with less lag during gameplay.

Push Notifications

Get bonus updates and new game alerts delivered straight to your phone.

Biometric Login

Log in instantly with fingerprint or Face ID.

Battery Efficient

Optimized code means the app uses less battery.

Install Guide

On Android 399db APK How to Install

1
Open Settings

Go to your phone's Settings. Open Security or Privacy and enable "Unknown Sources" or "Install Unknown Apps".

2
Download APK

Click the Android APK button on this page. The file will be saved to your phone's Downloads folder.

3
Install the File

Open the downloaded APK file. Tap the Install button. Installation completes in just a few seconds.

4
Log In & Play

The 399db icon will appear on your home screen. Tap it, log in, and start playing.

Important Note
  • Only download the APK from the official 399db website. Downloading from third-party sites carries security risks.
  • After installation, you can turn Unknown Sources back off if you prefer.
  • If installation fails, uninstall the previous version and reinstall using the new APK.
  • Make sure your phone has enough storage (at least 100MB free).
Details

399dbWhat's included in the app?

399dbThe mobile app isn't just a scaled-down version of the website — it's been purpose-built for mobile users. The interface is cleaner, buttons are larger, and touch response is more responsive.

Opening the app gives you instant access to Live Casino, slots, and Sports Betting all at once. The bottom navigation bar lets you switch between sections with a single tap. Live Casino video streams more smoothly on the app thanks to the native video player.

Deposits and withdrawals can be made directly from the app. For mobile banking payments, the app lets you jump straight to your banking app without any copy-pasting.

399dbThe app also includes exclusive app-only bonuses. Some promotions are available to app users only and won't appear for browser users. Downloading the app gives you more benefits at no extra cost.

Game history, balance check, and profile settings are all accessible within the app. Live chat with customer support is available too — the chat window opens without a full page reload.

Security: The 399db app uses 256-bit SSL encryption. Your login credentials and transaction data are fully protected.

399db

399db — Live Casino to Slots, All in One App

Comparison

App vs. Browser — Which is more convenient?

Features 399db App Mobile Browser
Loading Speed Much Faster Comparatively Slower
Push Notifications Available None
Biometric Login Available None
Live Stream Quality HD, Smooth Occasional Buffering
Exclusive Bonuses Available None
Battery Usage Less More
Live Chat Support Easily Accessible Page Reload Required
Auto Update Available None
399db

399db — Secure & Fast Mobile Gaming Platform

Security & Trust

399db App Is it safe?

It's a fair question — is installing a third-party APK safe? 399dbFor 399db, the answer is yes — as long as you download from the official site.

399dbThe APK file is regularly audited by third-party security firms. The app is free from malware and spyware. If you'd like, you can scan the file with VirusTotal or a similar tool before installing.

The permissions the app requests are strictly necessary for running games and processing payments. No access to your contacts, messages, or anything unrelated is required 399db The app doesn't require it.

The app has a session timeout system — after a period of inactivity, you're automatically logged out. This keeps your account secure even if someone else picks up your phone.

If any suspicious activity is detected 399dbThe security system will temporarily lock your account and notify you immediately. Enabling two-factor authentication (2FA) adds an extra layer of protection.

iOS Install Guide

On iPhone 399db How to Install

On iPhone or iPad 399db The installation process is just as straightforward as Android, though the steps differ slightly. Due to Apple's security policies, iOS apps install a little differently.

First, use the Safari browser — some features may not work properly in Chrome or Firefox. Then tap the iOS download button on this page.

An installation prompt will appear. Tap "Allow" or "Trust". Then go to Settings > General > VPN & Device Management, and under Developer App, trust 399db. After that, tap the app icon to open it.

This step only needs to be done once. Future updates can be applied from within the app.

1
Open in Safari

Open this page in Safari and tap the iOS download button.

2
Allow

Tap Allow on the installation prompt. The icon will be added to your home screen.

3
Trust

Go to Settings > General > VPN & Device Management and trust 399db.

4
Start Playing

Tap the 399db icon on your home screen and start playing.

399db

399db — Uninterrupted Gaming on iOS Devices

The 399db app runs best on iPhone XS and later models. It works on older models too, though performance may be slightly reduced.

FAQs

About the Download FAQs

Yes, the 399db app is completely free to download and install. Both the Android and iOS versions are free. The only cost is the mobile data used during download, which is typically around 50–52 MB.

This message appears because Android blocks app installations from unknown sources by default. The fix is simple — go to Settings > Security > Unknown Sources and enable it. On Samsung devices, go to Settings > Biometrics and Security > Install Unknown Apps and grant permission to your browser. Then try installing the APK again.

No, you don't need to download a new APK every time. The 399db app has an auto-update feature. When a new version is available, you'll see an update notification when opening the app and can update with a single tap. You can also manually download the latest APK from this page if you prefer.

The 399db app runs on Android 5.0 (Lollipop) and above. However, devices with less than 1 GB of RAM may experience issues with Live Casino video streaming — in that case, playing via browser is recommended. For the best experience, a device with at least 2 GB of RAM running Android 8.0 or higher is ideal.

Start by checking your internet connection. Close the app and reopen it. Make sure your password is correct. If the issue persists, clear the app cache — Settings > Apps > 399db > Clear Cache. Still having trouble? Contact 399db's 24/7 live chat support.

Having multiple accounts on one device goes against 399db's policy. Each person is permitted one account only. Creating multiple accounts may result in bonus cancellation and account suspension. Different family members may each use their own account on their own separate devices.
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