Free Download
Download the official ok big app on your smartphone and enjoy live betting, casino games, and instant payments from anywhere. Get ৳500 free credit as soon as you install.
Ok big App Available on All Major Platforms
Installing the APK on Android is quick and easy — just follow the steps below
Tap the "Download Android APK" button above. The file will be saved to your phone's Downloads folder. The download takes just a few seconds.
Go to Settings > Security > Unknown Sources on your phone and toggle it on. You only need to do this once, and you can turn it back off after the ok big app is installed.
Go to your Downloads folder and tap the ok big APK file. Hit the Install button and wait a few seconds.
Once installation is complete, open the ok big app. Log in with your registered mobile number and password. New users can sign up directly from within the app.
Deposit as little as ৳200 via Mobile Pay, Nagad, or Rocket and instantly receive a 100% welcome bonus. Start enjoying the full ok big betting experience right away.
The ok big APK is completely safe and virus-free. Every version is tested by third-party security experts before release.
What Sets ok big Apart from Every Other App
App loads in just 0.8 seconds, even on slow networks
Watch live video streams of matches in real time, right from within the app
Instant push notifications for goals, wickets, and match kick-offs
Dark theme for comfortable viewing — play through the night without eye strain
Log in instantly with Fingerprint or Face ID
Full Bangla menus, notifications, and customer support
All your transactions and personal information are kept secure
Withdrawal to Mobile Pay within 5 minutes of request
Check if ok big app is compatible with your phone
| Category | Minimum | Recommended |
|---|---|---|
| Operating System | Android 6.0 (Marshmallow) | Android 10 or above |
| RAM | 2 GB | 4 GB or more |
| Storage | 30 MB Free Space | 100 MB+ |
| Processor | Quad-core 1.4 GHz | Octa-core 2.0 GHz+ |
| Internet | 3G / 1 Mbps | 4G / 5G |
| Screen Resolution | 720×1280 | 1080×2340+ |
| Category | Minimum | Recommended |
|---|---|---|
| Operating System | IOS 13.0 | IOS 16 or Above |
| Device | IPhone 8 | IPhone 12 or newer |
| Storage | 50 MB free space | 150 MB+ |
| Internet | 4G / Wi-Fi | 5G / Wi-Fi 6 |
| IPad Support | IPad Air 2 | IPad Pro |
| Biometric | Touch ID | Face ID |
The ok big app features a Data Saver mode, ideal for rural areas or low-connectivity zones. It reduces image loading so only essential betting information is displayed quickly.
Ok big has users in every district across Bangladesh — from the edges of the Sundarbans to Rangamati in the Chittagong Hill Tracts. The ok big app works reliably no matter where you are.
Smartphones have become an indispensable part of daily life — shopping, banking, entertainment, all from the palm of your hand. ok big understands that reality and built its app with Bangladeshi users in mind. It's more than just a betting app; ok big is your all-in-one hub for entertainment and financial transactions.
Many betting apps are slow to load, prone to crashes, or lag during live matches. The ok big development team built the app with exactly these pain points in mind. Real-time odds updates, instant bet submission, and live score feeds — all in one place on the ok big app.
In Bangladesh, cricket isn't just a sport — it's a passion. Whether it's a Bangladesh national team match or the IPL, the ok big app keeps you on top of every ball, with real-time odds updates and in-play betting at your fingertips. Odds shift the second a wicket falls, and you can act on it with a single tap.
Ok big's live betting section lets you track multiple matches at once. Use the multi-bet feature to place bets on several matches simultaneously and earn parlay bonuses. The ok big betting interface is so intuitive that first-time users feel right at home within minutes.
Deposit via Mobile Pay, Nagad, or Rocket on the ok big app in just a few seconds. The payment gateway is built right into the app, so there's no need to switch between apps. Enter the deposit amount, enter your Mobile Pay PIN, confirm — and your ok big wallet is topped up instantly in three simple steps.
Withdrawals are just as simple. Go to the Wallet section in the app, tap Withdraw, enter the amount, and confirm your Mobile Pay number. Funds typically arrive on your mobile within 5–15 minutes. Day or night, weekday or holiday — ok big's payment system runs 24/7.
Your ok big account is protected by Two-Factor Authentication, login notifications, and suspicious activity detection. If anyone attempts to log in to your account from an unrecognized device, ok big will alert you immediately via SMS and in-app notification.
The ok big app also includes a self-limit feature, letting you set your own daily or weekly betting budget. It's a key part of responsible betting — something ok big actively encourages.
Frequently Asked Questions About the Download