Coggiri: Fruit Grab 🍎

A Vision Pro game designed to enhance cognitive skills for seniors through 3D fruit-grabbing in mixed reality

Designed for senior cognitive enhancement, encouraging physical engagement and reaction through gentle, spatial play — bridging wellness and immersive technology.

🎥 Demo: https://youtu.be/lNLyKoFYmhI

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What it is

Coggiri is a Vision Pro experience built to improve cognitive engagement for seniors through intuitive hand-based gameplay.
Players grab floating fruits in 3D space to train attention, reaction speed, and motor coordination, blending play with wellness.

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My role (Swift Developer)

• Gameplay Design: Built fruit grab and scoring mechanics using RealityKit.
• Audio System: Implemented adaptive SFX and background music for engagement.
• Data Integration: Synced scores with Notion database - https://coggiri.xyz

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Key Features

• Hand gesture-based grabbing using RealityKit collision detection.
• Dynamic round system with countdown bar + visual urgency cues.
• Real-time score feedback and result upload to Notion leaderboard.
• Simple, readable Korean text interface for senior-friendly play.
• Adaptive audio feedback — motivational chime, combo sound effects.

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Tech Stack

• Framework: SwiftUI, RealityKit, visionOS
• Backend: Next.js, TypeScript, Notion Database, Make
• Design Tools: Figma, Xcode
• Target Platform: Apple Vision Pro

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How it works (flow)

1. Tap “Start” → Fruits spawn in 3D space.
2. Reach and grab fruits with both hands; each hit increases score.
3. Countdown bar flashes red near end for urgency.
4. Game over → Upload score to Notion leaderboard.

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A graduation project by Industrial Design students at Hongik University

Designers: Nyeongwoo Kwon, Sooin Cho