Install the 33ko mobile app once and you have betting, casino, payments — all in one place. With fast loading, biometric login, and push notifications.
Whether you're on Android or iOS, the full 33ko app is available for both. Download the right version for your phone below.
File size: 25 MB · SHA256 verified
File size: 30 MB · Apple security verified
If you'd rather not download the app, that's fine. Open 33ko.best in Chrome or Safari — you'll get a fully responsive interface. That said, the app is the better option if you want push notifications and biometric login.
Installing an APK on Android is a slightly different process — just follow the steps below and you'll be done in under 2 minutes.
Phone's Settings → Security or Settings → AppsGo to . Enable the "Install unknown apps" or "Unknown Sources" option. On some phones, this permission needs to be granted separately for the browser app.
Tap the "Download Android APK" button on this page. The download will begin — it may take anywhere from 30 seconds to 2 minutes depending on your internet speed.
Once the download is complete, you'll see a notification in your notification bar. Tap it, or open your phone's File Manager, go to the "Downloads" folder, and 33ko.apk Locate the file.
Tapping the APK file will bring up an installation window. Tap the "Install" button. Installation will complete in 15–20 seconds.
You'll see the 33ko icon on your home screen. Tap it to open the app and log in to your account. On your first login, you'll have the option to set up biometric authentication (fingerprint) — doing so will make future logins much faster.
The installation process on iOS devices is slightly different. Follow the steps below.
Open Safari on your iPhone and tap the download button on this page. Installation may not work from other browsers.
Before the download begins, a permission prompt will appear — select "Allow" or "Download".
Go to Settings on your phone and select General → VPN & Device Management. You'll see the 33ko profile listed there — tap it and confirm "Trust".
After trusting the profile, the 33ko icon will appear on your home screen. Tap to open it and log in with Face ID or Touch ID.
On first launch, the app will ask permission to send notifications — tap "Allow". You'll receive new offers and important updates directly on your phone.
More than just a mobile website — the 33ko app is built specifically for mobile users.
New promotions, pre-match alerts, bet results — all delivered straight to your phone. No need to open the site.
No need to type your password every time. Log in instantly with a single touch using your fingerprint or Face ID.
The app lets you follow in-play betting and live scores side by side. Make your call at every moment of the match.
No internet? You can still view your previous bet history. The app stores data locally on your device.
Turn on dark mode for late-night or low-light sessions — it's much easier on the eyes.
The app is optimized for mobile — it loads faster than a browser and runs smoothly even on a slow connection.
When a new version is released, you can update directly within the app — no Play Store or App Store required.
Rotate your phone to landscape for a bigger view of Live Casino or sports matches.
BKash and Nagad payments work directly in the app with SSL encryption — no third-party involvement.
| Features | Android App | iOS App | Mobile Web |
|---|---|---|---|
| Push Notifications | |||
| Biometric Login | |||
| Offline Bet History | |||
| Dark Mode | |||
| Access All Games | |||
| Live Streaming | |||
| Installation Required | Yes (APK) | Yes (iOS) | No |
| Loading Speed | Fastest | Fastest | Medium |
| Automatic Updates |
The number of smartphone users in Bangladesh grows every day, and most people now access the internet on mobile. With that in mind, 33ko Their mobile app was built with purpose — not just to squeeze a website onto a small screen, but to deliver a genuinely great mobile experience.
The first thing you'll notice is the loading speed. Pages that take a few seconds in the browser load in half the time on the app — because the app caches a lot of data locally instead of fetching it from the server every time. On a slow internet connection, this difference is especially noticeable.
Biometric login deserves a special mention. Remembering and typing a password every time is a hassle for many people. Once you set up fingerprint or Face ID in the 33ko app, you won't need a password again — just a touch or a glance and you're in. It's also significantly more secure than a password.
Push notifications are one of the most useful features in the app. Special Eid offers, new promotions, reminders before BPL matches kick off — they all land straight on your screen. You'll know before an offer expires, so there's much less chance of missing out. That said, you're always in control: head to notification settings to choose exactly what you do and don't receive.
The "Unknown Sources" step required when installing an Android APK can make some users hesitant. That's understandable — 33ko's app isn't on the Google Play Store. But 33koAPKs downloaded from 's official site are completely safe — verified with SHA256 checksums. Once installation is done, simply turn Unknown Sources back off.
For iOS users, the Trust setup step might feel like an extra hurdle. But once it's done, there's nothing more to worry about. This process is required because of Apple's security guidelines — it's not specific to 33ko, it's the same situation for all betting apps.
Another great feature of the app is multitasking. The app keeps running in the background while you use your phone for other things, and notifies you of bet results as they come in — so you'll never miss an outcome even if you've forgotten you placed a bet.
All in all, 33ko's app was built with Bangladeshi mobile users in mind. Installation takes just a few minutes, and from that point on your gaming experience becomes significantly smoother. For anyone who bets or plays casino regularly, downloading the app is simply the smarter choice.
"Since I installed the 33ko app, I don't need to open a browser anymore. I get a notification before BPL matches, log in with my fingerprint, and my bet is placed within minutes."
— Rakib Hasan, SylhetOnly download the 33ko APK from the official site. Downloading from third-party sites may pose security risks.
Read the Privacy Policy
On your Android phone, go to Settings → Security → Unknown Sources and check the setting again. On some phones you need to grant this permission separately for the browser app — Settings → Apps → Chrome/Browser → Install unknown apps.
Try again on a Wi-Fi connection. Mobile data can sometimes interrupt downloads. Clear your browser cache and restart the download.
Go to Settings → General → VPN & Device Management. Find the 33ko profile, tap it, and select "Trust [33ko]". The app will then open normally.
Check your storage via Settings → Storage. It's best to have at least 100 MB free. Delete old apps or photos to clear up space.
Reach 33ko's live chat support by clicking the chat icon at the bottom right of the site. Help is available in Bangla, usually within 2–5 minutes.
If you don't want all notifications, go to the app settings and enable only promotions or match alerts.
During long live betting sessions, lower your screen brightness and switch to Wi-Fi — your battery will last much longer.
Occasionally check "Settings → Check for Update" inside the app to see if a new version is available.
Even if you use biometrics, keep a strong password — you'll need it if you ever log in from someone else's phone.
Only download the 33ko APK file from this official site. Files sourced from Telegram groups, third-party sites, or anywhere else may not be safe. If you're unsure, just ask via Live Chat.