Free Download — Android & iOS

Download 399ok App – Bangladesh's Best Betting & Casino on Mobile

The full power of 399ok in your pocket — live BPL and IPL cricket odds, 500+ casino games, and instant bKash or Nagad deposits, all from a lightweight app built for Bangladeshi smartphones.

Android APK
iOS Safari
SSL Secured
3G Ready
399ok

Choose Your Platform

Download 399ok for Android & iOS

Whether you are in Dhaka, Chittagong, Sylhet, or anywhere else in Bangladesh, the 399ok app delivers a fast and stable experience on any modern smartphone.

🤖 v4.2.1 — Latest

Android APK

Direct APK download — no Google Play store required. Works on Android 6.0 and above. File size: 28 MB.

  • Supports Android 6.0 Marshmallow and above
  • Lightweight 28 MB install — no bloat
  • One-tap bKash & Nagad deposit integration
  • Push notifications for live BPL match odds
  • Offline lobby browsing between connections
  • Auto-update via in-app prompt
Virus Free 28 MB Android 6.0+
🍎 PWA — No App Store Needed

iOS Web App

Install 399ok as a Progressive Web App directly from Safari. No App Store approval needed — full native-feel experience on iPhone and iPad.

  • Compatible with iOS 13 and above (iPhone & iPad)
  • Install via Safari "Add to Home Screen"
  • Runs full-screen with no browser chrome
  • Automatic updates — always the latest version
  • Face ID & Touch ID login support
  • Zero storage impact — no large APK file
iOS 13+ PWA No Install Required

21+ Only   Gambling involves risk. Please play responsibly. Available to adults aged 21 and above only.

Step-by-Step

How to Install 399ok on Android

Installing the 399ok APK on your Android device takes under three minutes. Because the app is distributed directly rather than through the Google Play Store, you need to allow installs from unknown sources — a routine one-time setting that is completely safe to enable for trusted sources like 399ok.

The APK is scanned and certified free of malware before every release. Thousands of players across Dhaka, Rajshahi, and Khulna have installed it with no issues.

399ok
1

Open Your Device Settings

Navigate to Settings → Security (or Privacy on newer Android versions). Look for "Install Unknown Apps" or "Allow installation from unknown sources" and tap it. This setting only needs to be changed once and applies only to the browser or file manager you use for the download.

2

Enable Unknown Sources for Your Browser

Select your browser (Chrome is recommended for Bangladeshi Android users) and toggle "Allow from this source" to ON. Your device will now permit the 399ok APK file to install once downloaded.

3

Download the 399ok APK

Visit the official 399ok download page in your browser. Tap the Android download button. The APK file (28 MB) will download to your device's Downloads folder within seconds — even on a standard 3G connection available across rural Bangladesh.

4

Open the Downloaded File

Once the download completes, a notification will appear in your status bar. Tap "Open" on the notification, or navigate to your Downloads folder and tap the 399ok APK file. Android will prompt you to confirm the installation.

5

Tap Install and Launch

Tap "Install" on the Android installer prompt. The process takes under 20 seconds. Once complete, tap "Open" to launch 399ok immediately, or find the 399ok icon on your home screen. Log in with your existing account or register — you are ready to place your first BPL bet.

iPhone & iPad

How to Add 399ok to Your iPhone Home Screen

iOS users get the full 399ok experience as a Progressive Web App — no App Store, no approval wait, and no storage cost beyond a tiny shortcut icon on your home screen.

399ok

Step 1 — Open Safari

Open the Safari browser on your iPhone or iPad. Navigate to 399ok.io. Safari is required for the "Add to Home Screen" function — Chrome and Firefox on iOS do not support PWA installation in the same way.

Step 2 — Tap the Share Icon

Tap the Share button (the square with an upward arrow) at the bottom centre of the Safari toolbar. A share sheet will slide up from the bottom of your screen showing various share and action options.

Step 3 — Add to Home Screen

Scroll down in the share sheet and tap "Add to Home Screen". You can edit the app name — leave it as "399ok" for easy identification. Tap "Add" in the top-right corner to confirm.

Step 4 — Launch & Play

The 399ok icon now appears on your iPhone home screen. Tap it to open the app in full-screen mode with no Safari address bar. Log in, deposit via bKash or Nagad, and start betting on live IPL and BPL matches instantly.

Tech Specs

399ok App Technical Requirements

Check the minimum and recommended specs for a smooth 399ok experience on your device. The app is optimised for affordable Android handsets common across Bangladesh.

Specification Android (APK) iOS (PWA) Status
Minimum OS Version Android 6.0 (Marshmallow) iOS 13.0 Supported
Recommended OS Android 10 or above iOS 16 or above Optimal
Storage Required 28 MB (APK install) < 1 MB (shortcut only) Low Impact
RAM Required 1 GB minimum, 2 GB recommended 1 GB minimum Supported
Internet Connection 3G minimum (4G/LTE recommended) 3G minimum (WiFi recommended) 3G Ready
Live Casino Streaming 4G / LTE or WiFi 4G / LTE or WiFi 4G Recommended
Processor Any ARMv7 or ARM64 chip Apple A9 or newer Wide Compatibility
Biometric Login Fingerprint (Android 8.0+) Face ID / Touch ID Supported
Popular BD Devices Tested Samsung Galaxy A-series, Walton, Symphony, Xiaomi Redmi iPhone 8 and above Verified

What You Get

Full Feature Set Inside the 399ok App

The 399ok mobile app is not a stripped-down version of the desktop site. Every feature available on the full platform is accessible from the app — optimised for touch and small screens.

399ok

Live Cricket Betting

Full in-play cricket markets for BPL, IPL, T20 World Cup, and all Bangladesh Tigers fixtures. Ball-by-ball odds refresh in under one second directly within the app. Receive push notifications when match odds shift dramatically.

HD Live Casino

Evolution Gaming and Ezugi live dealer tables stream in HD quality even over 4G connections. Live Baccarat, Roulette, Dragon Tiger, and Teen Patti with English-speaking hosts are available around the clock in the app.

500+ Slot Games

The complete Pragmatic Play, NetEnt, and Microgaming slot library loads natively in the app. Touch controls are optimised for swipe-to-spin. Progressive jackpots display live totals updated every 30 seconds.

One-Tap bKash & Nagad

The app integrates directly with bKash, Nagad, and Rocket mobile wallets. Deposits credit within seconds. Withdrawals are initiated from the app cashier and land in your MFS wallet typically within two to four hours.

Smart Push Notifications

Enable push alerts for your favourite cricket matches, bonus drops, and withdrawal confirmations. Notification preferences are fully customisable — only receive the alerts that matter to you, with no spam.

Biometric Security

Log in instantly with your fingerprint on Android or Face ID on iPhone — no need to type your password every session. All data transmitted through the app is protected by 256-bit SSL encryption end-to-end.

Troubleshooting

Common Installation Problems & Fixes

Running into an issue with the download or install? These are the most common problems reported by Bangladeshi players and exactly how to fix them.

This message appears when "Unknown Sources" is not yet enabled for your browser. Go to Settings → Security → Install Unknown Apps, select your browser (Chrome or Samsung Internet), and toggle the permission ON. Then retry the installation. This is a standard Android security prompt and not a sign that the file is unsafe.

This usually happens on congested 2G or very weak 3G networks — common in some areas outside Dhaka and Chittagong. Try downloading over a WiFi connection if available, or move to an area with better Grameenphone or Robi 4G coverage. The 399ok APK is only 28 MB, so a stable 3G signal should complete the download in under two minutes.

This error most often occurs when an older version of the 399ok APK is already present on the device. Delete any previous 399ok APK file from your Downloads folder, uninstall any existing 399ok app, and download the latest version fresh. Also check that you have at least 60 MB of free storage space available before installing.

The "Add to Home Screen" option only appears in Safari — not in Chrome, Firefox, or other browsers on iOS. Make sure you are opening 399ok.io in the default Safari browser. If the option still does not appear, scroll down further in the share sheet, as it may be below the visible area. Also ensure your iOS version is 13.0 or above by checking Settings → General → About.

A crash on first launch is usually caused by insufficient RAM (less than 1 GB free) or an incompatible Android WebView version. First, close all background apps to free RAM and retry. If the problem persists, go to Settings → Apps → Android System WebView and tap "Update" to ensure you have the latest version. Still crashing? Contact 399ok support via live chat — our team responds in under 90 seconds.

Most bKash deposits reflect within 10 seconds of payment confirmation. If yours has not appeared after two minutes, first check that your bKash account shows the deduction (confirming the payment went through). Then pull down on the 399ok wallet screen to force-refresh. If the balance still has not updated after five minutes, contact live chat support with your bKash transaction ID — our finance team will credit the deposit manually within 15 minutes.

Common Questions

Download FAQ

Answers to the questions Bangladeshi players ask most often about downloading and using the 399ok app.

Is the 399ok Android APK safe to install?

Yes. The 399ok APK is scanned with multiple antivirus engines before every release and is certified free of malware and spyware. The file is served directly from 399ok's own servers over an HTTPS connection. Thousands of players across Dhaka, Chittagong, and Sylhet have installed it without any security issues. The "unknown sources" warning you see during Android installation is a standard system prompt that appears for any app installed outside Google Play — it does not indicate the file is dangerous.

Does the 399ok app work on budget Android phones like Walton or Symphony?

Yes. The 399ok app is specifically optimised for the affordable Android handsets most popular in Bangladesh, including Walton Primo and Symphony devices running Android 6.0 or above with 1 GB of RAM. The app uses a lightweight rendering engine that delivers smooth gameplay even on lower-end hardware. For live casino streaming, a 4G connection is recommended, but all other features work well on a stable 3G signal.

Is there a charge to download the 399ok app?

No. The 399ok app is completely free to download and install on both Android and iOS. There are no subscription fees, no hidden charges, and no cost to create an account. Standard mobile data charges from your carrier (Grameenphone, Banglalink, Robi, Airtel, Teletalk) may apply when downloading the APK file — the file size is 28 MB, so data usage is minimal.

Can I use my existing 399ok account on the mobile app?

Yes. The 399ok mobile app uses the exact same account system as the website. Simply log in with your existing username and password. Your account balance, bonus funds, transaction history, VIP tier status, and saved payment methods (bKash, Nagad, Rocket) all carry over automatically. There is no need to create a separate account for mobile play.

How do I update the 399ok app to the latest version?

For Android APK users, the app displays an in-app update notification whenever a new version is available. Tap the notification to download and install the update — the process takes under 30 seconds and does not require you to re-enable unknown sources. iOS PWA users receive updates automatically every time they open the app, since the PWA always loads the latest version from 399ok's servers without any manual action needed.

What should I do if I forget my password on the app?

Tap "Forgot Password" on the 399ok app login screen. Enter the mobile number registered with your account and you will receive an OTP (one-time password) via SMS within 60 seconds. Enter the OTP, set a new password, and you are back in your account. If you no longer have access to your registered mobile number, contact 399ok live chat support — our team is available 24/7 and responds in under 90 seconds.

Get Started Today

Download 399ok and Claim Your ৳20,000 Welcome Bonus

Install the app in under three minutes and make your first deposit via bKash or Nagad to unlock a 100% welcome bonus up to ৳20,000. Over 50,000 Bangladeshi players are already betting on live BPL and IPL matches right now.

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21+ Only   Gambling involves risk. Play responsibly. Welcome bonus subject to 30x wagering requirements. Full terms apply.