Streaming AI Coach
A WebSocket and REST-based chat interface delivers streaming responses, media attachments, pagination, date separation, retry behavior, and a high-performance virtualized conversation interface.
Personalized AI Coaching for Mental Wellness
A personalized AI mental health app focused on everyday mental wellness, combining streaming AI conversations, guided journaling, personalized meditations, offline access, behavioral engagement analytics, and optional SMS-based companionship within a cross-platform mobile experience.
Project Overview
The application is an AI companion app that combines conversational AI, structured wellness activities, journaling, personalized audio meditation, and persona-driven coaching. Users receive streaming responses from a digital companion while accessing journals and downloaded meditations even when offline. The platform also includes an optional SMS companion, multilingual support, authentication, analytics, attribution, feature flagging, and push notifications. Its mobile architecture balances personalization and continuous engagement with secure credential handling, privacy controls, reliable state management, and cross-platform deployment.
Business Challenges We Addressed
Protecting Production Credentials
Sensitive Firebase configuration, analytics credentials, mobile tokens, and native configuration files could not be committed to source control, complicating automated development, onboarding, testing, and deployment.
Secure Mobile Delivery
The mobile experience required secure build automation, native-module support, iOS privacy compliance, over-the-air updates, and fast iteration without exposing production credentials.
Complex AI Application State
Streaming conversations, offline journals, cached media, API data, authentication, feature flags, analytics, and multiple app routes required clear separation between persistent client and server state.
How We Architected the Solution
Ditstek implemented a secure cross-platform architecture combining Expo EAS, typed APIs, offline caching, streaming communication, privacy-aware analytics, native mobile integrations, and structured state management for continuous wellness experiences.
Secure Build Pipeline
Production credentials are injected through EAS secrets and build profiles, allowing automated CI, TestFlight, and App Store workflows without committing sensitive configuration to source control.
Expo Custom Development Client
Expo and a custom development client support native Firebase and CleverTap capabilities alongside OTA releases, accelerating iteration without sacrificing required native integrations.
Structured State Management
Zustand and MMKV manage persistent client state while TanStack React Query handles remote server state, caching, synchronization, and request lifecycle responsibilities.
Typed API Integration
OpenAPI-generated clients provide a shared contract between mobile and backend services, reducing implementation drift and creating more predictable integration across evolving API versions.
Privacy-Aware Analytics
Adjust attribution initializes only after App Tracking Transparency permission, while PostHog and CleverTap support feature analysis, engagement events, user profiles, and notifications.
Offline Wellness Access
Cached journal sessions and meditation audio remain available without connectivity, strengthening the digital wellness platform experience whenever network conditions interrupt normal API access.
Core Platform Capabilities
The AI coaching platform brings together conversational support, persona-based onboarding, guided reflection, generated meditation, offline-first access, analytics, multilingual experiences, and secure authentication within a unified mobile wellness environment.
Dynamic Persona Assignment
Resumable onboarding captures structured responses through multiple-choice questions, sliders, and scales before assigning users one of five configurable AI coaching personas.
Personalized Audio Meditation
The guided meditation app experience provides generated sessions with play, pause, seek, autoplay, eligibility checks, and cached offline audio through a dedicated media service.
Guided Journaling
Journal entries integrate with conversational sessions and support guided templates, draft autosaving, publishing, deletion, and offline access through locally persisted application state.
Unified Activities Feed
Recent journals and meditation content appear within a combined dashboard offering quick actions, meditation generation entry points, and companion-subscription management.
SMS Companion
An optional text-based companion uses phone verification and subscription controls to extend conversational wellness support beyond the primary mobile application.
Analytics and Feature Flags
PostHog, CleverTap, and Adjust provide product analytics, session replay, configurable feature releases, engagement tracking, push notifications, and mobile marketing attribution.
Authentication and Deep Linking
Apple, Google, Magic Link, token refresh, Terms handling, suspended-user routing, and deferred deep links create resilient authentication and navigation experiences.
Multilingual Responsive Experience
English, French, and Spanish localization combines with centralized theme tokens, responsive breakpoints, animations, gesture handling, and structured routing across multiple application screens.
Tech Implementation
- React Native
- React
- TypeScript
- Expo SDK 54
- Expo Router
- REST APIs
- WebSockets
- Zustand
- TanStack React Query
- React-native-mmkv
- AsyncStorage
- AudioCacheService
- Firebase Auth
- Apple Sign-In
- Google Sign-In
- PostHog
- Adjust
- CleverTap
- Expo EAS
- Firebase Crashlytics
- Firebase Performance
- React-Native-Unistyles
- Reanimated
- Gesture Handler
- @legendapp/list
- Fastlane
Measurable Business Impact
Always-Available Wellness Support
Streaming conversations and offline wellness content give users access to core coaching, journaling, and meditation experiences across changing connectivity conditions.
More Personalized User Journeys
Persona assignment, onboarding responses, meditation generation, journals, and behavioral analytics create a personalized coaching app experience shaped around individual interaction patterns.
Reliable Offline Experience
Local caching allows journals and downloaded meditations to remain accessible even when API requests cannot be completed because the device is offline.
Faster Mobile Iteration
Expo EAS, typed APIs, OTA capabilities, and automated deployment workflows provide developers with a more controlled approach to releasing and maintaining functionality.
Stronger Engagement Infrastructure
Feature flags, analytics, push notifications, attribution tracking, activities, and an optional SMS companion create multiple mechanisms for supporting sustained user engagement.
Cross-Platform Wellness Foundation
The architecture provides a reusable mobile foundation for conversational coaching, personalized content, multilingual delivery, media experiences, authentication, analytics, and future feature expansion.