Published version and size
3.9.9 and about 36.1 MB stay visible here so you can match the finished file on your phone instead of trusting an unmarked chat attachment.
Product page · Android · Bangladesh
ban21 Android App Bangladesh | Features & Specs (v3.9.9)
A product overview of the ban21 Android app for Bangladesh — what it is, which details matter before install, and the live package: version 3.9.9, about 36.1 MB. For step-by-step install, use the Download guide.
What is the ban21 Android app?
ban21 is an Android app for people in Bangladesh who want a clear product listing before they sideload a file. On this page you can review what the app is for, the active package facts, and where to go next — without mixing that into a full install tutorial.
The current build is version 3.9.9. The main APK is about 36.1 MB; a lighter ARM package around 23.9 MB helps on slower mobile data. The previous release v3.9.8 stays listed so you can tell when you are looking at a newer file.
Many users in Dhaka, Chattogram, Sylhet, and other cities first meet ban21 through chat groups or ads. This product page is meant to replace guesswork: you see version, size, rating, and platform in one place, then move to the Download guide when you are ready to install.
The homepage is the site hub. This App page stays on the product. The Official page helps you confirm the channel. Login comes after the app is already on your phone.
ban21 app features that matter day to day
Practical strengths of build 3.9.9 — the details Bangladesh users check before install.
Fits Wi-Fi and mobile data
The main package is light enough for most home Wi-Fi sessions. On Grameenphone or Robi 4G, the ARM size (~23.9 MB) is a practical option when evenings are crowded.
Account access after install
ban21 is set up so you install first, then sign in when you need an account. The Login page covers that step — not a requirement before the APK downloads.
Clear update trail
Seeing v3.9.8 next to v3.9.9 helps returning users know they are moving to a newer build, not reinstalling the same file by mistake.
Official-channel pairing
Product facts on this page work with the Official channel page, so look-alike domains from ads are easier to spot.
Help when something fails
If the app will not open or the APK will not install, the Guide covers common Bangladesh Android errors without sending you to random “fix APK” blogs.
Who the ban21 app page is for
Typical Bangladesh users who open this product page before or after install.
- People comparing 3.9.9 and 36.1 MB before they commit to a download.
- Users who want features and specs first, then the step-by-step path on Download.
- Returning users checking whether a new build replaced v3.9.8.
- Anyone who already installed ban21 and needs Login, Official, or Guide links without re-reading the full install tutorial.
- Users tired of unmarked APKs from WhatsApp or Messenger who want a single product listing to verify against.
36.1 MB
Main APK package
23.9 MB
ARM package
v3.9.9
Active release
v3.9.8
Previous release
App page vs Download page vs Home
Three pages, three jobs — so Bangladesh users are not sent in circles.
This App page
Product focus: what ban21 is, features, who it suits, and live specs (version, size, rating, platform). Read this when you are still deciding about the app itself.
The Download page
Install focus: prepare, download, unknown sources, install, re-download, and safer habits. Open it when you are ready to put APK 3.9.9 on the phone.
The Home page is the hub with site-wide overview. Channel checks: Official. Accounts after install: Login.
Before you install the ban21 app
Short product-side checks — full install steps stay on the Download guide.
- Confirm Android 6.0 or higher and about 80 MB free for the 36.1 MB APK plus install space.
- Prefer Wi-Fi; on busy Grameenphone or Robi evenings, plan for a retry or the lighter ARM package.
- Expect Android to ask for unknown-source permission from your browser or Files — details are on Download.
- Match 3.9.9 / 36.1 MB on the finished file with the specs on this page.
- Skip “VIP unlock” pages that ask for bKash or Nagad before a basic free listing.
What is the ban21 app for Bangladesh users?
ban21 is an Android app product for Bangladesh users who want a clear package listing, account access after install, and official-channel details in one place. The current build is version 3.9.9 at about 36.1 MB.
What are the main ban21 app specs?
Active version 3.9.9, main APK about 36.1 MB, ARM package about 23.9 MB, previous release v3.9.8, Android platform, listed rating 4.9 with 735K+ downloads.
Is the ban21 app free in Bangladesh?
Yes. The APK listed on this site has no download fee. Avoid pages that ask for bKash, Nagad, or Rocket only to unlock a so-called VIP APK.
How is the App page different from Download?
This App page covers what ban21 is, features, who it suits, and live specs. The Download page is the install guide: prepare, download, unknown sources, install, and re-download.
How is the App page different from the homepage?
The homepage is the hub with overview links across the site. The App page focuses only on the product — features, specs, and who the app is for.
Which Android version does the ban21 app need?
Android 6.0 or higher for most phones. Keep about 80 MB free for the 36.1 MB APK plus temporary install files.
Where should I go next after reading the App page?
Open Download for install steps, Official to confirm the channel, Login after the app opens if you need an account, or Guide if something fails.
What is the current ban21 version?
The active release is 3.9.9. The previous build was 3.9.8. Match version and size on the finished file before you install.