Before installing on Android, make sure to enable "Unknown Sources" in your settings.
The full gaming experience, now on mobile
There was a time when online gaming meant sitting in front of a laptop or desktop. But times have changed. Most people in Bangladesh now do everything online through their smartphones — and gaming is no different. 555ooThe mobile app was built with exactly that in mind — delivering a big experience on a small screen is what it's all about.
Android or iPhone — 555ooThe 555oo app runs smoothly on both platforms. Even on older phones, games load without lag, bets go through cleanly, and withdrawals work without a hitch. The layout is intuitive enough that first-time users can find their way around from the moment they log in.
What you'll find on this page 555oo How to download the app, which phones it supports, what to keep in mind during installation, and which features will take your gaming experience to the next level.
Choose Your Platform
Both Android and iOS versions are now available with the latest updates
Download the APK file directly and install it on any Android phone. No Google Play Store required, so there are no access issues from Bangladesh.
Download Android APKOptimized specifically for iPhone and iPad. Install it from the App Store or download directly from our website.
iOS App DownloadStep-by-Step Download & Installation Guide
Installing for the first time? Follow this guide.
How to Install on Android
Enable Unknown Sources in Settings
Go to your phone's Settings > Security or Privacy > Unknown Sources and enable the option. Without this, the APK will not install. On Samsung devices, this option may appear as "Install Unknown Apps".
Download APK File
Click the download button on this page. The download will begin immediately and you can track its progress in your phone's notification bar. The file is typically saved to the Downloads folder.
Tap the APK file
Go to your Downloads folder and tap the 555oo_v3.2.1.apk file. The installation screen will appear — tap "Install" to proceed.
Please wait for the installation to complete
Installation completes within seconds. Once you see "Done" or "Open", tap Open to launch the app right away.
Log In or Register
Already have an account? Log in with your mobile number and password. New here? Complete registration in just 2 minutes and claim your welcome bonus.
How to Install on iOS
Click the Download Link
Open this page in Safari on your iPhone or iPad and tap the iOS download button.
Grant Trust Permission
Go to Settings > General > VPN & Device Management and trust the 555oo certificate. You only need to do this once.
Open the app from your home screen
Once installation is complete, the 555oo icon will appear on your home screen. Tap it to log in directly.
App features you'll love
More than just gaming — 555oo is a complete gaming ecosystem
Thanks to an optimized codebase, the app loads in just 1–2 seconds and runs smoothly even on a slow connection.
Get real-time scores and match odds for cricket, football, and all your favorite sports directly in the app.
Deposit directly through the app via bKash, Nagad, or Rocket — your balance is credited in just 30 seconds.
Get instant alerts for new bonuses, pre-match reminders, and win notifications.
Log in quickly and securely using your fingerprint or Face ID — no need to remember a password.
Fully available in Dark Mode for a comfortable viewing experience. No eye strain during late-night sessions.
Slots, Live Casino, Sports Betting, poker — all in one app. No need to download separate apps.
The entire app interface is available in Bangla — no English required to navigate with ease.
Live chat support is available right inside the app. If you run into any issues, reach our customer service team without ever leaving the app.
Why is the app better than the website?
A lot of people ask — you can already access the site through a browser, so why bother with a separate app? The answer is simple. 555oo's app has a clear edge over the browser in many ways.
First, the app accesses your phone's hardware directly, which makes loading speeds significantly faster. While a game might take 5–7 seconds to open in a browser, the app gets it done in just 1–2 seconds. The difference is especially noticeable in Live Casino games.
Second, the app lets you receive push notifications. Say your favorite team's match is 15 minutes away — the app will alert you in advance. You'll also get instant notifications when a new bonus drops or your withdrawal is approved. The browser can't do any of that.
Third, certain features are available in offline mode — such as viewing your past betting history, reading game rules, or checking your account details — all without needing an internet connection.
-
Faster Performance: Loads up to 3× faster than the browser, with near-zero lag.
-
Battery Saving: Optimized code means 20% less battery usage compared to the browser.
-
Secure connection: The app uses end-to-end encryption, so your personal information is completely secure.
-
Easy navigation: A mobile-first UI — large buttons, clear menus, and smooth scrolling.
-
Exclusive App Bonus: Some bonuses are exclusive to app users and are not available on the website.
System Requirements
What Your Phone Needs to Run the 555oo App
| Specifications | Android | iOS |
|---|---|---|
| Operating System | Android 5.0 (Lollipop) or above | IOS 13.0 or above |
| RAM | Minimum 2 GB (3 GB recommended) | Minimum 2 GB |
| Storage | 100 MB free space | 120 MB free space |
| Processor | Quad-core 1.4 GHz or above | Apple A9 or newer |
| Internet | 3G or above (4G recommended) | 3G or above (4G recommended) |
| Screen Resolution | 720×1280 or above | Retina Display Supported |
| Device Examples | Samsung Galaxy A-series, Xiaomi, Realme | IPhone 8, iPhone SE (2nd gen), or newer |
Frequently Asked Questions
Most Common Questions About the Download
Download the 555oo App Now
Register for free, download the app, and enjoy a 150% bonus on your first deposit.
18+ | Play Responsibly | Responsible Gaming Policy