System Requirements Document (SRD) for gamma-health

1. Introduction

The gamma-health project, branded as Herhealth AI, aims to deliver a comprehensive mobile application designed to empower women in managing their health. This app will serve as a Period Tracker & Women's Health Assistant, offering features such as cycle tracking, AI-driven health insights, personalized nutrition and exercise recommendations, and robust privacy measures. The application will be compatible with both Android and iOS platforms, leveraging React Native for seamless cross-platform development.

This document outlines the system requirements for Herhealth AI, ensuring alignment with the vision of Yasu Tousif from India. The app will cater to a global audience while incorporating locale-specific defaults, such as timezone (IST) and culturally relevant health tips.

2. System Overview

Herhealth AI is a mobile application designed to assist women in tracking their menstrual cycles, managing health goals, and receiving personalized insights through an AI-powered assistant. The app will feature a modern, user-friendly interface with customizable themes, ensuring a premium experience. Key functionalities include:

• Accurate period and ovulation predictions.
• AI-driven chatbot for health-related queries.
• Tailored nutrition and exercise recommendations.
• Secure data storage with local and cloud sync options.
• Privacy-focused features like biometric app lock.

The system will integrate advanced AI models, such as GPT 5.4, for conversational support and Google Nano Banana for image generation. The backend will utilize Firebase for authentication, database management, and notifications.

3. Functional Requirements

Core Features:

• As a User, I should be able to track my period and view predictions for my next cycle, ovulation, and fertile window.
• As a User, I should be able to log symptoms like cramps, mood, and flow.
• As a User, I should be able to write daily notes.
• As a User, I should be able to interact with an AI assistant for health-related queries.
• As a User, I should receive personalized food and exercise recommendations based on my cycle phase.
• As a User, I should be able to set reminders for periods, ovulation, medication, water intake, and exercise.
• As a User, I should be able to view graphs and charts for cycle trends, mood tracking, and health insights.
• As a User, I should be able to customize the app theme and notification settings.
• As a User, I should be able to securely store my data locally and sync it with the cloud.
• As a User, I should be able to enable app lock with PIN or biometric authentication.
• As a User, I should be able to switch to a pregnancy mode for tailored recommendations.
• As a User, I should be able to detect irregular cycles and receive alerts.

4. User Personas

1. Primary User (Women aged 18-45)

• Goals: Track menstrual cycles, manage health, and receive personalized insights.
• Needs: Accurate predictions, privacy, and a supportive AI assistant.
• Pain Points: Irregular cycles, lack of reliable health information, and difficulty in managing reminders.

2. Secondary User (Pregnant Women)

• Goals: Monitor pregnancy health and receive tailored advice.
• Needs: Pregnancy-specific recommendations and insights.
• Pain Points: Overwhelming information and lack of personalized guidance.

3. Guest User

• Goals: Explore app features before creating an account.
• Needs: Limited access to non-personalized features.
• Pain Points: Privacy concerns and app usability.

5. Visuals Colors and Theme

Unique Color Palette:

• Background: #FDF6F0 (Soft Cream)
• Surface: #FFF0F5 (Lavender Blush)
• Text: #4A4A4A (Charcoal Gray)
• Accent: #FF6F91 (Blush Pink)
• Muted Tones: #D8D8D8 (Soft Gray)

Theme Direction:

The app will feature soft pastel gradients with smooth transitions. Users can choose from multiple themes, including Dark, Light, Pink, Lavender, and Custom.

6. Signature Design Concept

The Herhealth AI homepage will feature a living floral garden animation that evolves with the user's cycle phase. Here's how it works:

• Dynamic Background: A subtle, animated garden with blooming flowers during the fertile window, wilting petals during the period phase, and vibrant growth during ovulation.
• Interactive Elements: Users can tap on flowers to reveal quick insights, such as cycle predictions or health tips.
• Micro-Interactions: Smooth hover effects and transitions, such as flowers swaying gently when the user scrolls.
• Color Shifts: The garden's color palette will adapt to the selected theme, ensuring a cohesive experience.

This design concept creates an emotional connection with users, making the app feel alive and personalized.

7. Non-Functional Requirements

• Performance: The app must load within 2 seconds and handle up to 10,000 concurrent users.
• Scalability: The backend should support future feature expansions and increased user base.
• Security: Ensure end-to-end encryption for all user data.
• Accessibility: The app must comply with WCAG 2.1 standards for accessibility.
• Localization: Support multiple languages, starting with English and Hindi.

8. Tech Stack

Frontend:

• React Native for mobile app development.

Backend:

• Firebase for authentication, Firestore database, and notifications.

Database:

• Firestore for cloud storage.
• Local storage for offline access.

AI Models:

• GPT 5.4 for conversational AI.
• Google Nano Banana for image generation.

AI Tools:

• Litellm for LLM routing.
• Langchain for AI workflow integration.

Orchestration:

• Docker for local development.
• Kubernetes for server-side orchestration.

9. Assumptions and Constraints

Assumptions:

• Users will have access to smartphones with Android 8.0+ or iOS 12+.
• Internet connectivity is required for cloud sync and AI features.

Constraints:

• The app must adhere to India's data privacy laws (e.g., PDP Bill).
• Limited budget for third-party API integrations.

10. Glossary

• AI: Artificial Intelligence.
• WCAG: Web Content Accessibility Guidelines.
• PDP Bill: Personal Data Protection Bill.
• LLM: Large Language Model.
• Firestore: A NoSQL cloud database by Firebase.

End of Document