SignX - Sign Language Tutor

About

SignX is the first and only sign language learning app built for Apple Vision Pro. There is nothing like it on any spatial computing platform. LEARN BY DOING, NOT WATCHING A 3D hand floats in your space showing exactly how to form each ASL sign. Hold up your right hand, and Vision Pro tracks every finger, every joint, in real-time. As you match the correct pose, your joints turn green. Hit 70% accuracy and you pass. This is how sign language should be learned — spatially, physically, with instant feedback. No other device lets you see your own hands while simultaneously viewing a 3D reference sign floating in front of you. This experience is only possible on Vision Pro. REAL-TIME ACCURACY TRACKING SignX uses angle-based pose comparison — measuring 15 joint bend angles and 4 finger spread angles simultaneously. It doesn't care about your hand size or where you hold it. Only your hand shape matters. When you're off, it tells you exactly which fingers to adjust: "curl your index finger" or "extend your pinky." When you nail it, you pass and move on. WHAT'S INSIDE • 26 ASL alphabet letters — learn to fingerspell your name in minutes • 9 ASL numbers — count from 1 to 9 in sign language • Pokedex-style sign encyclopedia — every entry includes a 3D hand model, body placement diagram, how-to description, tips, and common mistakes • Immersive practice mode — a ghost hand shows the target pose in your space while your tracked hand gets real-time feedback • Spatial quiz mode — identify signs from rotating 3D hands in an immersive environment • 179 animated word signs coming soon — watch motion-based signs play out in 3D space WHY THIS EXISTS Nearly 500,000 Americans use ASL as their primary language. But the people around them — their parents, children, partners, coworkers — almost never know how to sign. The biggest barrier has always been that sign language is three-dimensional, but every learning tool until now has been flat. SignX was built because a close friend lost their hearing. We believe that the ability to communicate with the people you love should never be blocked by a learning gap — or a price tag. FREE FOREVER No ads. No subscriptions. No paywalls. No in-app purchases. SignX is free because access to communication is a right, not a product. BUILT FOR VISION PRO SignX is built natively for visionOS using SwiftUI, RealityKit, and ARKit hand tracking. Every 3D hand model is procedurally generated from real ASL hand data captured through MediaPipe. The app runs entirely on-device — no internet connection required, no data collected. Words with motion tracking are coming soon. This is just the beginning.