# HandTremor - Spatial Lab — Hand motion in your workspace

> Hand motion in your workspace (iPhone/iPad app by ORTHOPRACTIS.COM SINGLE MEMBER P.C..)

- Source: https://appshunter.io/ios/app/handtremor-spatial-lab/id6807178136 (this page in markdown: same URL + `.md`)
- Developer: [ORTHOPRACTIS.COM SINGLE MEMBER P.C.](https://appshunter.io/developer/1286360877)
- Category: Medical, Health & Fitness
- Price: $89.99
- Age rating: 17+
- Requires: iOS 2.0 · 36 MB
- Languages: American English
- Released: 2026-09-01
- Data updated: 2026-09-20
- User reviews in markdown: https://appshunter.io/ios/app/handtremor-spatial-lab/id6807178136/reviews.md

## What is HandTremor?

HandTremor - Spatial Lab brings guided hand-motion observation and clinical-support records to Apple Vision Pro. Enter the immersive measurement space to view native hand landmarks alongside descriptive measurements and quality feedback.

NATIVE SPATIAL HAND TRACKING
Use ARKit hand tracking for available world-space hand joints. Follow guided tasks and see the active source, visible hands, signal quality and live measurement feedback. The Standard edition does not access the headset's restricted main-camera video feed.

ONE LIVE TABLE AND REVIEWED EXPORT
See all 18 measurements for both hands in one scrolling table, with units, context, status and last update. Green means inside an actual technical/user bound; red means outside, with technical warnings taking priority. No clinical normal ranges are supplied. Cards, individual charts and one-moment CSV/JSON snapshots remain.

Start one-second trial history explicitly: up to 600 snapshots/600 seconds in memory. Actual times, gaps, missed ticks and new/reused flags are recorded, without invented catch-up samples. Stop retains it until clear/exit; no automatic restart. Export freezes the run before TXT/JSON choice and acknowledgement for Save/Share. Full-precision context is retained; participant/session/trial IDs and raw uptime are omitted. Dates/motion remain sensitive.

GUIDED TASKS AND CLINICAL CONTEXT
The workspace includes supported rest, activated rest, posture, wing posture, rest-to-posture transition, kinetic movement, spiral, functional pouring, loading and pinch tasks. Visual instructions and optional spoken guidance support a consistent workflow. The Clinical guide discusses methods, interpretation limits and relevant literature without assigning a diagnosis.

OPTIONAL IPHONE COMPANION
Use the separate HandTremor iPhone app as a camera-based source after explicitly pairing the two devices. Choose Apple Vision or MediaPipe on the iPhone. The encrypted nearby connection sends extracted landmarks and timing only, not camera images or video. Pairing is not automatic, and the companion is not required for native hand tracking.

LOCAL VIDEO REVIEW
Import an authorized video into the local library, then select Apple Vision or the bundled MediaPipe engine for on-device reanalysis of a chosen range up to 60 seconds. The engines are active recognition options, not generative AI. Reanalysis produces a separate report and does not alter original footage or live measurements. To retain iPhone footage, explicitly record it on the iPhone and transfer a file yourself; a landmark-only companion session cannot create video on Vision Pro.

SESSION RECORDS
Save coded sessions locally and deliberately export CSV, JSON, raw landmarks or clinical-support reports. Review source labels, units and quality warnings when comparing sessions. Native world-space measurements and camera-relative measurements are not interchangeable, and neither source establishes clinical diagnostic accuracy.

IMPORTANT LIMITATIONS
Tracking depends on hand visibility, task setup, movement and hardware conditions. Quality scores describe the signal, not disease severity. This app does not diagnose Parkinson's disease, essential tremor, dystonia or another condition, assign disease probability, or recommend treatment. Consult a qualified healthcare professional for symptoms and medical decisions. Do not change medication or delay care based on these results. Clinical or human-subject research use requires appropriate local governance and consent.

The launch notice and applicable hand-tracking or local-network permissions precede capture. You control local retention and deletion. Exports and companion sharing occur only when enabled by you; external copies remain outside the app's deletion controls.


## Version history (last 1 release)

### 1.0 — 2026-09-02

No release notes.

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All apps by ORTHOPRACTIS.COM SINGLE MEMBER P.C.: https://appshunter.io/developer/1286360877

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-20.*