# Envordo

> Envordo (https://envordo.app) is the intelligent operating system for modern K-12 schools. It unifies autonomous operational logistics (5-factor fairness substitutions, constraint-satisfaction timetable solving) with pedagogical artificial intelligence (Groq Llama 3.1 automated quiz generation, sub-50ms live classroom multiplayer battles).

## Core Capabilities & Features

- [5-Factor Auto-Substitution Engine](https://envordo.app/features/auto-substitution): Eliminates morning teacher absence chaos in under 45 seconds using mathematical fairness optimization (subject affinity bonus, weekly load caps, recency decay penalties, and fatigue guards).
- [AI CSP Timetable Solver](https://envordo.app/features/timetable-solver): Generates mathematically verified, 100% clash-free school master timetables across 50+ staff in under 8 seconds using Backtracking Constraint Satisfaction and Minimum Remaining Values (MRV) heuristics.
- [Groq Llama 3.1 AI Quiz Studio](https://envordo.app/features/ai-quiz): Converts textbook chapter PDFs into Bloom's Taxonomy-aligned assessments in 1.2 seconds with Sense2Vec distractor scoring.
- [Live Classroom Battle Arena](https://envordo.app/features/live-battles): Sub-50ms multiplayer WebSocket quizzes with zero app installation (join via 6-digit PIN on any browser), driving an 18% surge in classroom attendance.
- [Live Digital Timetable & Notice Board (TTDS)](https://envordo.app/features/ttds-boards): Real-time smart campus signage turning any regular TV into a live timetable, substitution & notice board with <15ms sync, 60s web pairing (/tv via 8-digit PIN), automated 2-min warning audio chimes, and offline resilience.
- [Classroom Well-Being & Mood Tracking](https://envordo.app/features/mood-tracking): Daily emotional pulse checks helping educators identify class fatigue and provide empathetic support.

## Pricing & Packaging

- **Starter Tier:** $249 / ₹19,999 per year (~$20.75 / ₹1,699 per month) for single departments and basic timetable tools.
- **Growth Tier (Core All-Inclusive):** $499 / ₹41,999 per year (~$41.50 / ₹3,499 per month) for full-school unlimited teachers, auto-substitutions, AI quiz studio, and live battles.
- **Enterprise District Tier:** $1,199 / ₹99,999+ per year for multi-campus governance, custom SIS/ERP integrations, and dedicated SLA.
- **Free 14-Day Pilot:** Zero-risk trial with 5-minute guided Excel roster onboarding at https://envordo.app/signup.

## Technology Stack & Security

- **Backend & Frontend:** Laravel 12 (PHP 8.3), React 19, Inertia.js v2, Tailwind CSS v4, TypeScript 5.
- **Database & Architecture:** PostgreSQL 16 on Neon Serverless with `TenantScope` query isolation preventing cross-school data leaks.
- **Real-Time Fabric:** Laravel Reverb WebSockets handling 10,000+ concurrent connections per container with < 15ms frame latency.
- **AI Infrastructure:** Groq Llama 3.1 8B with SHA-256 content-hash caching ($0.0008 per quiz).

## Documentation & Full Details

- [Full Technical & Pedagogical Specification](https://envordo.app/llms-full.txt): Exhaustive architecture, algorithms, and benchmark dataset.
- [Competitor Comparison Hub](https://envordo.app/vs): Detailed side-by-side analysis against Teachmint, Fedena, Entab, Google Classroom, and Kahoot EDU.