SAHAY – AI-Powered Android Launcher for Elderly Safety & Independence

SAHAY is an AI-powered Android launcher designed specifically for elderly users to make smartphones simple, safe, and stress-free. It provides a big-button interface, voice-first interaction, and passive emergency monitoring to improve independence, safety, and emotional well-being.

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🌟 Problem Statement

Modern smartphone interfaces are:

• Too complex
• Full of small buttons
• Hard to navigate
• Difficult for elders with weak eyesight, arthritis, or low tech literacy

This results in:

• Dependence on others
• Reduced confidence
• Isolation
• Anxiety
• Safety risks

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🚀 Solution – What is SAHAY?

SAHAY replaces the default Android launcher with a simple, high-contrast, voice-controlled interface specially designed for senior citizens.

Core Pillars

• 🧠 Simplicity – Large buttons, minimal choices
• 🎤 Voice Autonomy – AI assistant to perform tasks
• 🚨 Passive Safety – Smart inactivity monitoring + SOS system
• ❤️ Emotional Well-being – Easy family communication & memories

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📱 Key Features

1. Big Button Home Screen

• Huge, high-contrast buttons
• One-tap access to essential functions

Main Actions:

• 📞 Call Family
• 📸 Memories
• 🍔 Food & Cabs
• 🚑 Help (SOS)
• 🎤 Genie (Voice Assistant)

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2. Genie – Voice AI Companion

SAHAY integrates a powerful Accessibility Service-based assistant that can control other apps on your behalf.

Usage:

• 🗣️ "Order a masala dosa from Swiggy"
• 🗣️ "Buy a phone charger from Amazon"
• 🗣️ "Get my medicines from Tata 1mg"

How it Works (Two Modes):

1. Full Automation (Recommended):

   • Requires Accessibility Permission.
   • Genie: Understands your voice → Opens App → Searches → Selects Item → Adds to Cart → Stops at Checkout.
   • Safety: You always confirm the final payment manually. No credentials or OTPs are ever automated.

2. Limited Mode (Privacy-Focused):

   • No permissions required.
   • Genie: Does the search for you, but you must select the item and checkout yourself.
   • Privacy: Best for users who prefer strict control.

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3. Guardian Angel – Passive Safety System

Monitors inactivity using:

• Motion sensors
• Screen unlock events
• App interaction

Logic:

If no activity for 6 hours →

• Voice prompt: "Grandpa, are you okay?"
• Wait 60 seconds
• If no response → Send SOS alert + live location to family

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4. Emergency SOS

• Dedicated emergency screen
• Big SOS button
• 45-second countdown
• Automatic call + SMS + WhatsApp alert

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🛠 Tech Stack

Frontend (Android)

• Language: Kotlin
• UI Framework: Jetpack Compose (MVVM Architecture)
• Voice: Android SpeechRecognizer + NLP Intent Parser
• Automation: Android AccessibilityService (Node interaction, scroll control)
• Safety: Foreground Service, SensorManager

Backend (Design)

• FastAPI / Node.js
• Secure APIs
• AI intent routing

AI & Services

• Google Gemini API / OpenAI Whisper (planned integration)
• Twilio (SMS & Calls)
• WhatsApp Business API
• Google Maps API (Location)

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🏗 System Architecture

graph TD
    User([User Voice]) --> STT(Speech-to-Text)
    STT --> NLP(Intent Engine)
    NLP -->|Command| Genie(Genie Orchestrator)
    Genie -->|Check| Perms{Accessibility?}
    Perms -- Yes --> Auto(Full Automation Service)
    Perms -- No --> Fallback(Limited Mode: Deep Links)
    Auto --> App(Target App: Swiggy/Amazon)
    Fallback --> App
    App --> Checkout((User Pays))

Loading

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🔐 Security & Privacy

Genie is built with "Privacy First" principles:

• Accessibility Service: Used strictly for user-commanded tasks.
• Revocable: Permission can be revoked instantly via Settings.
• No Payment Automation: Genie never enters payment details or OTPs.
• No Continuous Listening: Microphone is active only when you tap the orb.
• On-Device focus: Core intent parsing runs locally for speed and privacy.

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📂 Project Structure

SAHAY/
 ├── app/
 │    ├── ui/              # Jetpack Compose UI (Screens, Theme)
 │    ├── viewmodel/       # MVVM State Logic (Genie, Home)
 │    ├── services/        # Background + Accessibility Services
 │    ├── genie/           # Intent Parsing, Flow Configs, Automation Logic
 │    ├── navigation/      # Navigation Graph
 │    └── utils/           # Helpers
 ├── backend/              # API design (optional)
 └── README.md

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🧪 How to Run

1. Clone the repository
2. Open in Android Studio
3. Sync Gradle
4. Run on a real Android device (Emulator accessibility works but is tricky)
5. Grant Permission: Follow the on-screen prompts to enable "Genie Accessibility Service" for full features.

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🎯 Hackathon Alignment

Human Connection

• One-tap family calls
• Memories gallery

Communication

• Voice-first interface

Emotional Well-being

• Independence in daily tasks (ordering food/medicine without help)
• Reduced anxiety through simple UI
• Safety assurance

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🏆 Why SAHAY is Different

• Built as Android Launcher not just an app
• True App Automation: Controls other apps like a human would
• Passive emergency monitoring
• Elder-first UX design
• High social impact

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📜 License

This project is licensed under the MIT License.

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❤️ Final Note

SAHAY is built to give elders:

Freedom. Safety. Confidence. Dignity.

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End of README