10+ Real-Time Features: How AgileTech Delivered a Doctor Consultation App On Time and On Budget

Our client is a forward-thinking healthcare organization committed to enhancing the accessibility and quality of medical services through digital transformation. Recognizing the growing demand for remote healthcare, they approached AgileTech with the vision of building a comprehensive doctor consultation app that would enable patients to connect with certified medical professionals through secure, convenient, and real-time digital channels.

Although the main deliverable was a mobile app, the solution includes web-based features for administrative management, including:

• Doctor profile management: Add and update qualifications, specialties, and availability.
  
• Appointment tracking: Monitor bookings and consultation history.
  
• Package administration: Manage healthcare packages and subscriptions.
  
• Analytics dashboard: Track user engagement, revenue, and operational metrics.
  
• Content management system: Publish and update health articles and expert advice.

The primary objective was to develop a secure and user-friendly app for doctors for online consultation that would streamline doctor-patient interactions. Key goals included:

• Enabling patients to search for doctors based on their symptoms.
  
• Providing tools for real-time booking and video consultations.
  
• Offering seamless in-app payments and healthcare package subscriptions.
  
• Ensuring data security, appointment notifications, and effective communication channels.
  
• Delivering a high-performance, cross-platform mobile app for both Android and iOS.

Developing a reliable and feature-rich doctor consultation app presented several complex challenges, both technically and operationally:

1. Real-Time Scheduling & Availability Conflicts
   One of the core functionalities of the app was enabling patients to schedule appointments based on doctor availability. However, designing a scheduling system that supports real-time updates for multiple users (doctors and patients) was particularly challenging. Any change made by one user—such as booking, canceling, or modifying an appointment—had to be instantly reflected across all users’ devices. Moreover, it was crucial to prevent overlapping appointments, double bookings, and timing mismatches, especially with doctors managing tight schedules.
   
2. Secure and Flexible Payment Integration
   Integrating payment gateways that could securely handle transactions across different devices, currencies, and healthcare package models was another critical task. The system needed to support both one-time payments and recurring subscriptions, ensuring compliance with international security standards (PCI DSS) while maintaining a smooth and intuitive user experience. Fraud prevention and payment failure handling were also significant considerations.
   
3. High-Quality Video Consultation Experience
   A core value proposition of the app was to offer real-time video consultations. Ensuring stable, high-quality video and audio—even in low-bandwidth environments—was technically demanding. The solution had to support secure, HIPAA-compliant (Health Insurance Portability and Accountability Act) video calls with minimal latency, alongside features like virtual waiting rooms and post-call summaries.
   
4. Real-Time Notifications & Reminders
   The app for doctors for online consultation​ required a robust system to send timely notifications for appointment reminders, video call alerts, chat updates, and medication reminders. These alerts needed to be synchronized across platforms, personalized per user, and managed in a way that minimized intrusiveness while maintaining relevance.
   
5. Data Privacy & Compliance
   As a healthcare application, the solution needed to adhere to strict data privacy regulations. Protecting sensitive medical data and consultation records, managing user consent, and ensuring encrypted data transmission were top priorities. Additionally, the system had to be scalable for future expansion into new regions with varying legal requirements.

To address these multifaceted challenges, AgileTech implemented a series of strategic technical solutions and best practices during the doctor consultation app development:

Related Post: Doctor Appointment App Increased Bookings by 60% and Cut No-Shows by 35%

To deliver a secure, scalable, and user-friendly doctor consultation app, AgileTech selected a modern tech stack tailored to the needs of real-time healthcare platforms.

• Flutter – Cross-Platform Mobile Framework

Flutter was used to develop a single codebase for both Android and iOS, enabling faster development and consistent performance across platforms. Its UI capabilities ensured a smooth and intuitive user experience, essential for patient engagement.

• Firebase – Real-Time Database & Authentication

Firebase powered real-time data syncing for appointment scheduling, chat, and availability updates. It also supported secure user authentication and role-based access, ensuring fast, reliable interactions between doctors and patients.

• WebRTC – Video Consultation

WebRTC enabled real-time, encrypted video consultations with minimal latency. Integrated with scheduling and notification systems, it allowed seamless doctor-patient calls, even in low-bandwidth environments.

• Stripe & PayPal – Payment Integration

To handle payments securely, Stripe and PayPal were integrated, supporting both one-time and subscription-based transactions. These gateways ensured global currency support, fraud prevention, and PCI-DSS compliance.

• Firebase Cloud Messaging (FCM) – Notifications

FCM was used to deliver personalized push notifications for appointment reminders, video call alerts, and health updates, enhancing user engagement and reducing no-shows.

• Google Cloud Platform – Hosting & Infrastructure

The app’s backend and databases were hosted on Google Cloud, offering scalable performance, automated backups, and enterprise-level security for sensitive medical data.

• Data Security & Compliance

The system was designed with AES-256 encryption, TLS 1.3, and GDPR/HIPAA-ready protocols to ensure full protection of user data and healthcare records.

• Content Management for Health Articles

A lightweight CMS module allowed administrators to manage health articles and expert content dynamically, supporting ongoing user education within the app.

The final deliverable was a fully functional doctor consultation app that included a wide range of patient-friendly features:

• Symptom-based doctor search with detailed doctor profiles.
• Real-time appointment scheduling and management.
• High-quality video consultations with real-time medical guidance.
• Subscription-based healthcare packages with direct consultation access.
• Secure online payments.
• Chat functionality and timely push notifications.
• A comprehensive library of expert health articles.

• On-time Delivery: The app went live according to the client’s timeline, demonstrating AgileTech’s commitment to punctuality and efficiency.
• Cost-Effective Development: The use of Flutter ensured cost savings through cross-platform compatibility without compromising quality.
• Excellent Support and Services: Throughout the development process, AgileTech maintained clear communication, transparent workflows, and a high level of responsiveness to client feedback.

AgileTech continues to provide post-launch support to ensure the doctor consultation app runs smoothly and meets evolving user needs. Our services include:

• Regular system updates and performance optimization.
• Timely bug fixes and patch releases.
• Feature enhancements based on user feedback.
• Technical assistance and monitoring.