Chalkline by Parallel 8

Your institute, on its own app.

Live classes, recorded lectures, tests and payments in one app with your name on it. Built for Indian mobile networks.

Book a demo How live works

Every lecture adapts to the student's network

  • 720p1,496 kbps
  • 480p814 kbps
  • 360p514 kbps
  • 240p298 kbps
  • Audio48 kbps
Data per lecture hour, at most 673 MB

Teach live from OBS or a browser tab.

Students watch a few seconds behind the teacher, even in a class of hundreds. When the class ends, the recording becomes a lecture on its own.

  1. Teacher goes live

    One click gives a private stream key for OBS. Short sessions can run straight from the browser.

  2. On air

    Chalkline streams it

    The full-quality feed is recorded while students get versions sized for their connection.

  3. Students join

    480p by default, stepping down to 240p or audio-only when the signal drops. Chat and attendance run alongside.

  4. The replay is ready

    The recording lands in the course folder in up to 720p, ready to publish.

Content protection

Paid lectures stay with paying students.

A moving watermark on every screen

Each student's name or phone number drifts across the video, so any leaked recording points back to one account.

Encrypted streams

Every video gets its own key. Links expire, and they only work for the signed-in student's device.

Screen recording blocked on Android

Screenshots and recordings of the player, live classes, notes and tests come out black.

Capture detection on iPhone

The player blanks while the screen is being recorded or mirrored.

Device limits

Cap how many phones share one login, and how many play at once.

Ready for full DRM

Switch on Widevine and FairPlay later without re-encoding a single video.

Everything else you run today, in one dashboard.

Timed tests and rank lists UPI, card and EMI payments Coupons and offers Push campaigns Student chat Encrypted offline downloads Malayalam and English Live attendance Team roles and permissions Revenue and watch-time reports Home banners Bulk video upload

Your app. Your students. Your data.

Your institute's name on the Play Store and App Store, with no other platform's logo in it. The student list, payments and content stay yours.

Already on another platform?

We move your institute across and run both side by side until every student is settled in.

  • Students

    Imported by phone number. They log in with an OTP, so there are no passwords to reset.

  • Enrolments

    Rebuilt with each student's original expiry date, then checked course by course.

  • Videos and tests

    Lectures are re-encoded for streaming, and question banks come in through the bulk importer.

  • Cutover

    A closed beta with a group of students first, then everyone moves once it holds up.

See Chalkline with your own courses.

We'll set up a demo with a few of your lectures, so you can try it on your own phone.

Book a demo kiranksuresh@gmail.com