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Eight Network

An interactive social radio platform where creators broadcast audio and video: a Flutter app with offline playback, subscriptions and a coin economy unlocking premium episodes.

49Weeks operated
2k+Hours of work
3Engineers

The brief

Build a cross-platform "Interactive Social Radio" mobile app enabling creators to broadcast audio content, build radio stations, stream episodes, and grow followership, with audience engagement (comments, likes, ratings, follows) and a monetisation layer for premium content access.

What we built

A full-stack interactive audio/video broadcasting platform ("Eight Network") comprising:

  • Flutter mobile app for iOS and Android with a sophisticated audio/video player engine (HLS, background service, offline download, mini-player, sleep timer, speed control)
  • server-driven UI framework with 16+ configurable grid view types
  • multi-auth system (OTP, Gmail, WhatsApp)
  • Apple IAP subscription and consumable coin micropayment economy with daily streaks, ad rewards, and episode unlocks
  • 7-SDK analytics/attribution stack (Firebase, MixPanel, CleverTap, WebEngage, Facebook, Singular, AppsFlyer, MoEngage)
  • push notifications and deep linking (Firebase Dynamic Links, CleverTap, Singular)
  • offline-first local DB architecture (Isar)
  • React web viewer with HLS reel player and admin dashboard
  • Windows/macOS desktop creator upload application with crash-resilient multi-part S3 uploads, and
  • content protection via screen recording detection and watermarking.
⊛ Live in production

Flutter mobile app live on Apple App Store (multiple production releases tracked in log: v1.0.3, v1.0.8, v1.1.0+). React web viewer and admin dashboard deployed. Windows/macOS desktop upload tool built. Apple IAP subscription and coin micropayments active in production. All 7 analytics SDKs firing live events. Push notifications and deep linking operational across iOS.

How it was built, phase by phase.

8 workstreams across 49 weeks of operated delivery

  1. (001)BUILDWeek 1–49

    Cross-Platform Audio/Video Player Engine

    A sophisticated media playback engine built in Flutter supporting audio streams, HLS video, background service playback, persistent mini-player, sleep timer, playback speed, queue management, offline local playback.

    ✓ A full-featured cross-platform audio/video player with offline download, background playback, persistent mini-player, playback speed.

    FlutterBLoCjust_audioffmpegHLSFirebase
  2. (002)BUILDWeek 1–26

    Multi-Auth & Identity System

    Comprehensive authentication supporting OTP/mobile, Gmail OAuth, WhatsApp OTPless login, Firebase custom auth, secure token management with refresh tokens, JWT storage.

    ✓ Production multi-auth system handling mobile OTP, Google, WhatsApp with secure token lifecycle and device identity for analytics attribution

    Firebase AuthGoogle Sign-InWhatsApp OTPlessJWTSecure StorageFlutter
  3. (003)INTEGRATEWeek 6–49

    Subscription & In-App Purchase (IAP) Monetisation

    Full subscription monetisation stack including Apple IAP (consumable and non-consumable), Razorpay, PhonePe SDK, coin-based micropayments, trial flows, receipt verification, restore purchases.

    ✓ Live App Store subscription with trial, coin micropayments, offer discounts, and pending transaction recovery across iOS production

    Apple IAPStoreKitRazorpayPhonePe SDKApp Store ConnectFlutter
  4. (004)INTEGRATEWeek 10–49

    Multi-SDK Analytics & Marketing Attribution

    Integration of seven analytics and attribution SDKs: Firebase Analytics, MixPanel, CleverTap, WebEngage, Facebook Events, Singular, AppsFlyer, and MoEngage.

    ✓ Full-funnel marketing attribution and engagement analytics across 7 platforms covering install-to-payment conversion tracking

    Firebase AnalyticsMixPanelCleverTapWebEngageFacebook SDKSingular
  5. (005)INTEGRATEWeek 12–49

    Push Notifications & Deep Linking

    End-to-end push notification system via Firebase FCM and CleverTap, supporting rich image notifications, custom sounds, in-app notification UI, notification tap routing to mid-page content.

    ✓ Multi-channel notification system with content-specific deep linking, rich push with images/sounds, and in-app notification UI

    Firebase FCMCleverTapFirebase Dynamic LinksSingularAASAMoEngage
  6. (006)BUILDWeek 14–26

    Offline Caching & Local Database Architecture

    Comprehensive offline-first architecture using Isar local DB for carousel data, structure lists, continue-listening state, downloaded episodes, sticky player state, and search cache.

    ✓ Full offline-first capability: cached home page, downloadable episodes in AAC format, and resume playback from last position without internet

    Isar DBffmpegHLSFlutterlocal storage
  7. (007)BUILDWeek 17–35

    Server-Driven UI / Grid View Content Framework

    A server-driven content rendering framework supporting 16+ named grid view types (GV1–GV16), each with distinct layout, data URL patterns, and bloc integration.

    ✓ Dynamic home page layout engine driven by backend configuration, allowing content team to rearrange, add, or remove UI sections without app releases

    FlutterBLoCREST APIsIsar DB
  8. (008)BUILDWeek 28–49

    Coin Economy & Gamification System

    Virtual coin economy enabling per-episode unlocks, coin pack purchases (IAP and PhonePe), daily streak rewards, ad-reward coins (Google Ads rewarded), social reward actions (follow, notification opt-in.

    ✓ Live freemium engagement loop: users earn coins via daily streaks, ads, and social actions; spend on episode unlocks; purchase top-ups via IAP

    FlutterApple IAPPhonePeGoogle AdMob Rewarded AdsSingularREST APIs

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