Case Study  ·  HealthTech / Telemedicine

Linkmind

Doctor-Patient Video Consultation App

A DPDP-compliant telemedicine platform connecting patients with doctors through secure video consultations, encrypted chat, appointment booking, and digital prescriptions — all in a single mobile app.

🏥 HealthTech 📱 React Native DPDP Compliant Video Consultation Lead Developer
Linkmind Doctor Patient App
2
Apps (Doctor + Patient)
E2E
Encrypted Video & Chat
DPDP
Health Data Compliant
6
Major Integrations
My Role

Lead Developer — Architecture, React Native Mobile Development, and DPDP compliance implementation

Project Type

Telemedicine Platform — Video Consultation, Chat, Appointments, Digital Prescriptions

Deliverables

Patient App (iOS + Android), Doctor App, Admin Dashboard, Secure Backend API

Primary Stack

React Native · Node.js · Agora · PostgreSQL · AWS · Firebase

Project Brief

Healthcare That Fits
In Your Pocket

Linkmind was built to solve the last-mile healthcare problem in India — patients in tier-2 and tier-3 cities can't easily access specialist doctors. The app connects them with verified doctors via video consultation, without leaving home.

The platform is fully DPDP Act compliant — no patient health data is shared with third parties, all video sessions are end-to-end encrypted, and medical records are stored in encrypted AWS S3 with patient-controlled access.

❌ The Challenge

  • Stable video calls on low-bandwidth connections
  • Patient health data privacy (DPDP Act)
  • Doctor availability and scheduling system
  • Digital prescription legality in India
  • Separate workflows for doctor vs patient

✅ The Solution

  • Agora SDK with adaptive bitrate for 2G/3G
  • End-to-end encryption, zero third-party data transfer
  • Calendar-based slot booking with SMS reminders
  • Doctor-signed PDF prescription with timestamp
  • Role-based app flows with separate UX
Platform Features

Every Feature Your Telehealth
Platform Needs to Succeed

📹

HD Video Consultation

Agora SDK powers crystal-clear video calls between patients and doctors. Adaptive bitrate ensures stable calls even on 3G connections in tier-2 and tier-3 cities across India.

💬

Encrypted In-App Chat

End-to-end encrypted chat for follow-up questions and document sharing. Patients share reports, doctors share prescriptions — all within the secure Linkmind environment.

📅

Smart Appointment Booking

Doctors set their available time slots. Patients book consultations, get SMS and push notification reminders, and can reschedule or cancel up to 1 hour before the appointment.

📋

Digital Prescriptions

Doctors issue digitally signed PDF prescriptions during or after consultation. Prescriptions are stored in the patient's health record with timestamp, doctor registration number, and diagnosis notes.

🔒

DPDP Act Compliance

Zero third-party data sharing, patient-controlled health record access, encrypted data at rest in AWS S3, and full audit trail for all health data access — built to meet India's DPDP Act requirements.

💳

Razorpay Consultation Payments

Patients pay per consultation or buy a monthly subscription. Doctors receive automated payouts after platform commission. UPI, cards, and wallets supported for seamless payment experience.

Technology Stack

Built for Security,
Designed for India's Network Reality

⚛️
React Native

Patient & Doctor Apps

📹
Agora SDK

Video Consultation

🟢
Node.js

Backend API

🐘
PostgreSQL

Patient Records

☁️
AWS S3

Encrypted File Storage

💳
Razorpay

Payments & Subscriptions

🔔
Firebase

Push Notifications

📩
Twilio

SMS Reminders

What Was Delivered

A Complete Telemedicine Platform,
Live on Both Stores

2
Apps (Patient + Doctor)
iOS & Android
E2E
Encrypted Video,
Chat & Files
DPDP
Health Data
Act Compliant
3G
Stable Video on
Low Bandwidth
FAQ

Common Questions About
Telemedicine App Development

How do you make a doctor-patient app DPDP Act compliant?

DPDP compliance for health apps requires: no third-party data transfer without explicit consent, encrypted storage at rest and in transit, patient-controlled data access, an audit trail for all data access, and a clear data deletion policy. TechEin implements all of these by design — not as an afterthought — using AWS KMS encryption, role-based data access controls, and consent-gating for any data sharing.

Which video SDK is best for telemedicine apps in India?

Agora is our preferred choice for Indian telemedicine apps — it has adaptive bitrate that maintains call quality on 3G connections, local Indian servers for low latency, and competitive pricing per-minute. We've also worked with Jitsi (open-source, self-hosted) for clients who need full data sovereignty and zero third-party data transfer.

Can digital prescriptions issued through the app be used at pharmacies?

Yes — in India, digital prescriptions from registered medical practitioners are legally valid under the IT Act 2000 and MCI guidelines. Linkmind generates PDF prescriptions with the doctor's registration number, digital signature, timestamp, and QR code for verification. These are accepted at pharmacies and for insurance claims.

How much does it cost to build a telemedicine app like Linkmind?

A full telemedicine platform (patient app + doctor app + admin panel) with video consultation, chat, booking, and digital prescriptions typically costs ₹10–18 lakhs. An MVP with core video and booking features starts from ₹5 lakhs. Contact TechEin for a fixed-price quote based on your specific feature requirements.

Want to Build Your Own
Telemedicine App?

TechEin has built DPDP-compliant telemedicine platforms with video consultation, encrypted chat, and digital prescriptions. If you want to connect patients with doctors through your own app — we've done it before.

Start a Conversation → Doctor-Patient App Service
✓ Free 45-min discovery call ✓ Fixed-price delivery ✓ NDA on day 1 ✓ Full source code ownership