Lectures with speed and resume
HLS and DASH play natively. Pick up exactly where you left off, on any network.
Official app · Direct APK
The whole classroom,
The whole classroom,
in your pocket.
Lectures, notes, DPPs, tests, live classes and offline downloads — one app, one login. Install it straight from here, no Play Store needed.
Latest build checking…
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Required update
Signed by Delta PW
Android 7.0 and newer
Updates itself in-app
You're not on Android. The APK below only installs on Android phones and tablets —
open this page on your Android device, or tap download anyway to save the file for later.
Download
Latest release
Pulled live from the Delta PW admin panel. When a new build is published there, this page updates itself — no edits needed here.
Delta PW for Android
Version —
New
Required
- loading release notes
- loading release notes
Fetching the latest release…
What's new
Release notes
The same notes the admin panel publishes with each build.
- loading release notes
- loading release notes
- loading release notes
Features
Built for how you actually study
Everything on the website, plus a player and a downloader that survive a bad network.
Notes and PDFs
Open any class PDF in the built-in reader — offline, zoomable, no browser tabs.
DPPs and tests
Attempt, submit and review in-app. Answers and solutions stay one tap away.
XP and leaderboard
Same XP rules as the website: notes, DPPs, tests, watch time and live classes all count.
Download lectures for offline
Save a lecture to your gallery, keep watching in the metro or the hostel Wi-Fi dead zone.
Notifications that matter
New lecture, new DPP, live class starting — pushed, never buried in an inbox.
Install
Three taps and a code login
The APK is signed by us; Android will ask once before installing an app from this page.
Download the APK
Tap the button above. Chrome may warn about "this type of file can harm your device" — that is the standard notice for every APK; choose Download anyway.
Allow the install
Open the downloaded file. If Android asks, allow Chrome to install unknown apps for this one time. Play Protect may ask to scan the file — that is fine.
Sign in
Use your mobile number with OTP, or continue with Google. Your XP, batches and progress land exactly where you left them on the website.
FAQ
Questions students ask
Is this the official app? +
Yes. This page is the only official download. Every build here is the one published from the Delta PW admin panel, signed with the same key so updates install over the previous version without uninstalling.
Do I need the Play Store? +
No. The app installs directly from this page. Android will ask once for permission to install from your browser.
How do updates work? +
The app checks for a new build on launch and shows an update card. Tap it, the new APK downloads, and it installs over the old one — your login and downloaded lectures stay.
Which Android version do I need? +
Android 7.0 (Nougat) or newer. On older devices, use the website.
I'm on iPhone. +
There is no iOS build yet — the page will tell you when one exists. Until then the website works the same on iOS, including lectures and tests.
Something is broken after an update. +
Open Settings inside the app and send the details from the feedback option, or reinstall the previous build from the older release link if it was shared with you.