WristSkill™ is built by Joseph Sharaya, OTD, OTR/L, CHT — an occupational therapist and Certified Hand Therapist.
The app exists because the gap between wrist proprioception research and clinical practice has been visible for years. Dozens of peer-reviewed studies have shown that wrist proprioception matters, that it can be measured reliably, and that rehabilitation protocols that target it produce better outcomes. What's been missing is a tool clinicians can actually use at the bedside — one that doesn't require a robot, a motion-capture system, or a research budget.
WristSkill is an attempt at that tool. It uses a device most clinics already have access to. It measures performance across six movement planes that map onto the published staging of wrist sensorimotor rehabilitation. It stores results locally by default, with optional progress sharing when the user chooses it. And it's built by a clinician for clinicians.
WristSkill is currently available on the App Store for individual clinical use. Version 1.0 shipped on iPhone in April 2026. Expanded practice modes, a dedicated DTM training plane, an optional static joint position sense trial, and Android support are planned.
For research partners
WristSkill's psychometric properties — test-retest reliability, normative ranges by age and hand dominance, responsiveness to intervention — have not been published. I am in discussions with doctoral programs to establish normative data and reliability metrics, and there are opportunities for investigators interested in this work.
Clinicians interested in incorporating WristSkill into patient care, and researchers interested in partnering on validation work, are welcome to reach out.
For clinics and health systems
For clinics, practice groups, or health systems interested in deploying WristSkill across multiple providers — or for rehabilitation and research organizations considering integration into a broader workflow — there isn't a formal program yet, and I'd rather talk through what's useful than build something no one wants.
If any of that describes your situation, email me. Include what you have in mind, how many clinicians would use it, and any constraints I should know about.
Contact
For questions, feedback, or partnership inquiries:
For app technical issues, please include your device model and OS version.