Enjoy the full 555det experience anytime, anywhere. Fast loading, smooth gameplay, and secure transactions — all in one app.
Choose the right version for your device
Size: 48 MB | Android 6.0+
Size: 52 MB | iOS 13.0+
555det Mobile App – A Smooth Experience on Every Device
Set up the app on your device in just a few simple steps
On your Android phone, go to Settings > Security and enable "Unknown Sources" or "Install unknown apps".
Go to the official 555det site and click the Download button to save the Android APK file.
Open the downloaded APK file and tap the "Install" button. Wait for the installation to finish.
Launch the app, then log in to your 555det account or create a new one.
Open the App Store on your iPhone or iPad and type "555det" in the search bar.
Find the official 555det app in the search results and make sure the icon matches.
Tap the "Get" or download icon, then confirm with Face ID or Touch ID.
Once installation is complete, open the app, log in to your account, and start playing.
555det has become a well-known name in Bangladesh's online betting and casino scene. You can play on the website, of course, but for those who want to enjoy games on the go or from the comfort of their bed, the mobile app is the best option. The 555det app is built so that no technical knowledge is required — anyone can use all its features with ease.
The biggest advantage of the app is speed. The 555det app loads significantly faster than a mobile browser — a difference you'll really notice during Live Casino sessions or live Sports Betting. HD video streams without any buffering, which isn't always possible on a mobile browser.
555det also leads the way in security. Every session is protected with SSL encryption. The Android version supports Fingerprint Lock, while the iOS version supports Face ID / Touch ID — giving your account an extra layer of protection. Even if you stay logged in, the app automatically locks after a set period of inactivity.
For payments, you can deposit directly via bKash, Nagad, and Rocket from within the app. Push notifications keep you instantly updated on new promotions, win alerts, and withdrawal status — so you never miss an offer.
The 555det app features a full Bengali interface — from menus to notifications, everything is in Bengali, making it easy even for first-time users. Customer support is also available in Bengali directly within the app.
555det never shares your personal information with third parties. All data is stored on encrypted servers. For more details, please read our Privacy Policy Read.
Pages load 3x faster than a standard mobile browser.
Get instant updates on new offers and wins.
Fast, secure access with Fingerprint or Face ID.
Switch to dark mode at night for a more comfortable viewing experience.
The app runs smoothly even on a slow internet connection.
Minimum device requirements to run the 555det app
| Features | Android | iOS |
|---|---|---|
| Minimum OS Version | Android 6.0 (Marshmallow) | IOS 13.0 |
| Recommended RAM | 2 GB or more | IPhone 8 or newer |
| Storage Space | At least 100 MB free | At least 100 MB free |
| Internet connection | 3G / 4G / Wi-Fi | 3G / 4G / Wi-Fi |
| App size | 48 MB | 52 MB |
| Biometric Support | Fingerprint supported | Face ID / Touch ID |
| Language | Bangla, English | Bangla, English |
| Latest Update | 2026 | 2026 |
555det App – Secure and Fast Mobile Gaming
The 555det mobile app includes every feature available on the website — and in some cases, offers even more. The slots section alone has over 500 games, all easily filterable within the app so you can find your favorite in seconds.
For Fish Game fans, the 555det app has a dedicated fishing section. Playing Fish Game on a mobile touchscreen is a whole different experience — tapping directly on the screen to catch fish makes it genuinely fun. The phone's vibration feature brings the game to life even more.
In the Live Casino section, you can play Baccarat, Roulette, and Blackjack with real dealers at the table. The app automatically adjusts video quality based on your network, so the experience stays smooth whether you're on 4G or Wi-Fi.
In the Sports Betting section, you can place bets on cricket, football, tennis, and all major leagues worldwide. Live scorecards and real-time odds updates are available right inside the app. When placing live bets on the BPL or IPL, odds shift after every ball — and that thrill is even better on mobile.
Many users see an "Unknown Sources" warning when installing the 555det APK on Android. This is normal — Android displays this warning whenever you install an app from outside the Google Play Store. Simply allow the permission in Settings and the installation will complete. The 555det APK is completely safe.
If the app won't open or crashes after installation, restart your phone and try again. This fixes the issue in most cases. If the problem persists, uninstall the app and download a fresh copy.
If you're having trouble logging in, first make sure your internet connection is active. If you've forgotten your password, Login Page to reset your password or contact the support team.
The 555det customer care team is available 24 hours a day to assist you in Bengali. Use the live chat option inside the app to get quick solutions to any issue.
Frequently Asked Questions About the 555det App Download
Sign up and get a 100% Welcome Bonus on your first deposit. Download the app and you'll also receive an extra mobile bonus.