Grace Score Engine
An AI scoring system using Cosine Similarity, Bone Vector Normalization, and Beat Synchronization. Measures posture accuracy, step alignment, and timing precision — expressed as a single Grace Score out of 100.
Your AI-powered Kathak companion — practice authentic poses, receive real-time feedback, and master the rhythm of Teental.
Core Features
From first steps to advanced Chakkars — Ghoongroo adapts to every level of your classical dance journey.
An AI scoring system using Cosine Similarity, Bone Vector Normalization, and Beat Synchronization. Measures posture accuracy, step alignment, and timing precision — expressed as a single Grace Score out of 100.
Powered by Apple Vision framework, the camera tracks 19 body landmarks in real time — spine, shoulders, arms, hips, knees, and ankles — giving instant posture overlays as you dance.
A precision beat system with visual Sam, Taali, and Khaali markers. Practice to Teental (16 beats), Jhaptal (10 beats), or Ektaal (12 beats) with audio bols synchronized to your movements.
Per-cycle analysis that detects rushing arms, missed Sam beats, posture instability, and graceful moments — delivering feedback in plain language so you can improve each taal cycle.
Step-by-step lessons for every element — from beginner Namaskar and Thaat to advanced Chakkar spins. Each element has detailed visual guidance with costume context.
The engine detects Chakkar spins through shoulder-crossing patterns in 2D pose data, awarding a 5-point bonus per detected spin — rewarding advanced technique automatically.
AI-Powered Analysis
Five body regions evaluated beat-by-beat — giving you a single, honest number and personalised coaching after every session.
After each session, every score (Posture, Rhythm, Balance…) gets its own personalised coaching note — praise when you excel, a clear tip when you need to improve.
The AI highlights which of your five body regions scored highest and which needs the most attention in your next practice.
All analysis runs on-device using Apple's Foundation Model. Your practice data never leaves your iPhone or iPad.
Rhythmic Cycles
Every taal is mapped beat-by-beat with Sam, Taali, and Khaali markers — so you always know where you are in the cycle.
The most common taal in Hindustani music. A 16-beat cycle in four equal vibhaags — the foundation every Kathak student learns first.
An asymmetric 10-beat cycle (2+3+2+3) with a distinctive lilting rhythm. Commonly used in semi-classical Kathak compositions.
A meditative 12-beat cycle of six pairs. Often performed in Vilambit (slow) laya, Ektaal allows elaborate improvisation and nuanced expression.
Structured Curriculum
Three progressive difficulty levels — each unlocking new elements, more complex rhythms, and deeper feedback.
Master the core postures and footwork that underpin all Kathak performance.
Layer rhythm, hand gestures, and complex taal cycles onto your foundation.
Command spins, asymmetric rhythms, and advanced layakari divisions.
Now Available
Ghoongroo is now available on the App Store. Start practicing authentic Kathak with AI guidance from day one.
Requires iOS/iPadOS 16.0 or later · iPhone & iPad · Not available on other devices