TL;DR
- Live cohort vs self-paced is the FIRST decision — drives everything else.
- Mobile-first mandatory — 80% of Indian students use mobile.
- UPI Mandate (recurring) is the unlock for subscription edtech.
- Parent portal is the underrated retention lever for K-12.
Step 1 — Live cohort vs self-paced
Different infrastructure, different unit economics:
| Live cohort | Self-paced | |
|---|---|---|
| Tech needed | Live video (Zoom embed or Mux Live) | VOD player (Mux / Cloudflare Stream) |
| Capacity | 50-500/cohort | Unlimited (post-content) |
| Margin | 30-60% (teacher cost) | 70-90% (one-time content cost) |
| Engagement | High (synchronous) | Lower (async) |
| Best for | Skill courses, exam prep, 1:1 coaching | K-12 supplements, MOOCs, micro-learning |
Step 2 — Content delivery
- Mux ($1-3 per 1000 views): best DX, India CDN, DRM
- Cloudflare Stream ($1 per 1000 minutes): cheapest, decent quality
- Don't use YouTube: lose control + analytics + monetisation
- Materials (PDFs, slides): S3 + signed URLs, NOT public links
Step 3 — Payments + subscriptions
- Course one-time: Razorpay UPI / cards
- Monthly subscription: UPI Mandate (cap ₹15K/debit) + card-on-file fallback
- Annual prepay: discount 15-25%; lifts retention metrics
- Refund policy: 7-day no-questions-asked is industry default; longer kills CAC payback
Step 4 — Attendance + grading
Live: attendance auto-captured by class join. Add quiz polls + raised-hand. Self-paced: progress per video + quiz scoring + completion certificates.
Step 5 — Parent portal (the unsung hero)
For K-12 + skill courses: parent login → see attendance, progress, fees, teacher comments. Weekly WhatsApp digest. Cuts churn 30-40% in our deployments.
Step 6 — In-app communication
- Teacher-student forum (1:many)
- Doubt resolution (1:1 messaging)
- Announcements (broadcast)
- WhatsApp BSP for parent comms
Step 7 — AI tutor
RAG over your syllabus + past Q&A. 24×7 doubt resolution. Use Llama 3.3 70B (self-hosted) or Claude Sonnet (API) — Hindi support critical via Qwen for tier-2/3.
Cost ladder
| Stage | Eng spend | What you get |
|---|---|---|
| MVP (1 cohort) | ₹3-8L | Course + payments + simple LMS |
| Scaling (10-100 cohorts) | ₹15-50L annual | + parent portal + AI tutor + mobile app |
| Series A (1000+ active) | ₹50L-2cr | + B2B school dashboard + content factory |
Real client
9-week edtech MVP for Bengaluru founder. ₹3L build. Closed ₹1.2cr seed in 4 months. Now 3,000+ active users. Edtech industry page →
Last reviewed: 27 April 2026.
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