GraphR - Calculating the Future

#CalculatingTheFuture

The world's first intuitive, all-in-one calculator app for education. Designed to make phones educational tools rather than distractions in the classroom.

What is GraphR?

GraphR is a mobile application built for students and teachers that combines:

• All-in-one calculator: Basic, scientific, and graphing modes in one app
• Secure exam mode: Patent-based app-switch detection ensures fair testing
• Real-time analytics: Track student progress with learning insights
• Classroom management: Teachers can create exams, monitor assessments, and grade in real-time

Key Features

For Students

• Multi-mode calculator (Basic, Scientific, Graphing)
• Take secure exams with proctoring
• View real-time feedback and grades
• Track your learning progress
• Join classrooms and access materials

For Teachers

• Create and manage exams
• Real-time exam monitoring with violation alerts
• Instant grading and analytics
• Monitor student performance across classrooms
• Generate performance reports

The Patent

GraphR implements a unique patent-based proctoring system:

• Detects when students switch apps during exams
• Notifies teachers in real-time of violations
• Logs all violations with timestamps
• Allows emergency calls (student safety first)
• Never locks the device

This approach balances academic integrity with student safety and privacy.

Getting Started

Prerequisites

• Node.js 16+ and npm
• Expo CLI (npm install -g expo-cli)
• iOS or Android device/emulator
• Firebase account with project

Installation

# Install dependencies
npm install

# Set environment variables
# Update services/firebase.js with your Firebase credentials

# Start development server
npm start

# Run on iOS
npm run ios

# Run on Android
npm run android

# Run on web
npm run web

Project Structure

GraphR App Production/
├── App.js                    # Main app orchestrator
├── app.json                  # Expo configuration
├── eas.json                  # EAS build configuration
├── package.json              # Dependencies
├── constants/
│   └── graphr.js            # App constants & utilities
├── screens/                  # 12+ screen components
│   ├── SplashScreen.js
│   ├── AuthScreen.js
│   ├── CalculatorScreen.js
│   ├── GraphingScreen.js
│   ├── ExamModeScreen.js
│   ├── ExamListScreen.js
│   ├── ClassroomScreen.js
│   ├── TeacherDashboardScreen.js
│   ├── GradeBookScreen.js
│   ├── AnalyticsScreen.js
│   ├── ProfileScreen.js
│   └── SettingsScreen.js
├── services/                 # 7 services
│   ├── auth.js              # Firebase authentication
│   ├── firebase.js          # Firebase initialization
│   ├── firestoreService.js  # Database operations
│   ├── notifications.js     # Push notifications
│   ├── examMonitor.js       # Patent proctoring (patent)
│   ├── iap.js               # In-app purchases
│   └── analyticsService.js  # Learning analytics
├── legal/
│   ├── privacy-policy.html
│   └── terms-of-service.html
├── firestore.rules          # Firestore security rules
├── storage.rules            # Firebase storage rules
└── SUBMIT_GUIDE.md          # App Store submission guide

Technology Stack

• Frontend: React Native with Expo
• Backend: Firebase (Auth, Firestore, Storage)
• Payments: React Native IAP (App Store + Google Play)
• Notifications: Expo Notifications
• State Management: React Hooks

Configuration

Firebase Setup

1. Create a Firebase project at firebase.google.com
2. Update services/firebase.js with your credentials
3. Deploy security rules:

firebase deploy --only firestore:rules,storage

App Store Submission

See SUBMIT_GUIDE.md for detailed instructions on submitting to:

• Apple App Store
• Google Play Store

Build & Deployment

Development Build

eas build --platform ios --profile development
eas build --platform android --profile development

Production Build

# iOS
npm run build:ios
npm run submit:ios

# Android
npm run build:android
npm run submit:android

COPPA Compliance

GraphR is designed for educational use with minors. All implementations comply with the Children's Online Privacy Protection Act (COPPA):

• No collection of personal information without parental consent
• No advertising or behavioral tracking
• School district control over data
• Transparent privacy practices

Support

For issues, feature requests, or questions:

• Email: support@graphr.app
• Website: graphr.app

License

This project is proprietary software by GraphR App.

About

GraphR - Calculating the Future of Education

• Tagline: #CalculatingTheFuture
• Phone bans endanger student safety and harm learning. GraphR is the solution.

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Built with passion for education. Every line of code serves students.

Author: Pawan K Jajoo