Case Study

Mobile

CodeX Meet

CodeX Meet is a cross-platform WebRTC-based video calling and interactive meeting application designed to simplify one-to-one conferencing. The application establishes direct peer-to-peer WebRTC connections while using Firebase Firestore as a real-time signaling service, eliminating the need for expensive third-party video conferencing SDKs. This architecture provides a secure, privacy-focused, low-latency, and cost-effective communication solution. Built with Flutter, CodeX Meet delivers a responsive user experience across Android, and Web , with layouts optimized for both mobile and desktop environments. The application includes several collaboration features such as real-time chat, live polls, emoji reactions, screen sharing, meeting recording, speech-to-text captions, and transcript exporting. Users can securely authenticate and join meetings instantly using Room IDs, deep links, or QR code invitations.

Flutter

Dart

Firebase Authentication

Firebase Firestore

WebRTC

Challenges & solutions

The technical problems our team solved to ship a reliable, unified mobile experience.

Building a Low-Latency Video Calling Platform Without Third-Party SDKs

Delivering smooth, real-time video communication without relying on expensive conferencing services required a scalable peer-to-peer architecture. We implemented a pure WebRTC solution with Firebase Firestore signaling to achieve secure, low-latency, and cost-effective communication.

Improving Meeting Collaboration and Accessibility

Standard video calls often lack interactive and inclusive collaboration features for remote teams. We integrated live polls, speech-to-text captions, screen sharing, meeting recording, and transcript exports to create a more engaging and accessible meeting experience.

Simplifying Secure Meeting Onboarding

Joining meetings through lengthy manual processes can reduce user adoption and productivity. We enabled secure authentication along with Room IDs, deep links, and QR code invitations to provide fast, seamless, and secure meeting access.

Key features

What users get in the finished, shipped product.

Pure WebRTC Video and Audio Calling :

Architecture : Establishes direct peer-to-peer 1-to-1 video and audio communication channels.
Performance : Utilizes native WebRTC PeerConnection APIs for low-latency media streaming.
Optimization : Adapts to real-time network fluctuations automatically without relying on third-party servers.

Interactive In-Call Polls :

Engagement : Allows hosts to create multi-option polls during active, live meetings.
Synchronization : Synchronizes user votes instantly across all participant devices.
Visualization : Displays real-time results using fluid, animated progress indicators.

Real-Time Speech-to-Text Captions :

Transcription : Deploys on-device speech recognition engines for live caption generation.
Transmission : Streams continuous subtitles instantly via high-speed RTC Data Channels.
Accessibility : Elevates meeting inclusivity and comprehension for all participants.

Meeting Transcript Export :

Logging : Logs meeting conversations textually to compile a chronological dialogue timeline.
Storage : Saves fully compiled text transcripts directly to the local device storage.
Sharing : Leverages native system share sheets to distribute completed records instantly.

Secure Local Meeting Recording :

Privacy : Records session video and audio feeds directly on the local user hardware.
Integration : Plugs into platform-native screen capture services for optimized encoding.
Export : Commits the finalized recording file directly into the local device gallery.

Floating Emoji Reactions :

Interaction : Allows participants to dispatch animated emoji reactions mid-conversation.
Real-Time : Renders floating animations simultaneously across both participant displays.
Engagement : Drives non-verbal communication and expressive feedback during sessions.

Screen Sharing Capabilities :

Collaboration : Transmits live device or desktop displays directly over the established peer link.
Persistence : Implements Android foreground services to prevent background capture drops.
Utility : Facilitates uninterrupted remote presentations, slide sharing, and software demos.

Deep Linking and QR Invitations :

Onboarding : Connects users via direct Room IDs, custom deep links, or web URLs.
Scanning : Generates clean, high-contrast QR codes for rapid mobile camera access.
Frictionless : Minimizes meeting entry hurdles to optimize guest initialization.

Secure User Authentication :

Gateways : Integrates secure Google Sign-In alongside traditional email and password options.
Synchronization : Syncs user profile metadata across multiple hardware endpoints seamlessly.
Identity : Enforces strict user identity verification to maintain account ecosystem integrity.

Tech integrations

Third-party SDKs & libraries

10 core integrations powered

flutter_webrtc

Core system integration

flutter_background

Background playback

provider

Core system integration

animated_emoji

Core system integration

shared_preferences

Core system integration

share_plus

Core system integration

app_links

Core system integration

pretty_qr_code

Core system integration

path_provider

Core system integration

flutter_screen_recording

Core system integration

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