# Goniometer: Range of Motion — Digital Joint ROM Measure > Clinical goniometer app for measuring joint range of motion using smartphone sensors. (iPhone/iPad app by KEVIN LAN.) - Source: https://appshunter.io/ios/app/goniometer-range-of-motion/id6779455734 (this page in markdown: same URL + `.md`) - Developer: [KEVIN LAN](https://appshunter.io/developer/6771587993) - Category: Medical, Health & Fitness - Price: Free with in-app purchases - Rating: 4.70/5 from 12 App Store ratings · 9 written reviews indexed - Age rating: 4+ - Requires: iOS 16.6 · 3 MB - Languages: American English, European Spanish - Released: 2026-06-18 - Data updated: 2026-08-26 - Monetization: free with in-app purchases - User reviews in markdown: https://appshunter.io/ios/app/goniometer-range-of-motion/id6779455734/reviews.md ## What is Goniometer? Measure joint range of motion with the device already in your pocket. Goniometer turns the iPhone's motion sensor into a clinical-style goniometer: place the phone against the limb, read the live angle, and lock it when steady. Built for occupational and physical therapists, hand therapists (CHTs), chiropractors, physicians, nurses, athletic trainers, ATPs, and students — and used by patients tracking recovery at home. Reviewed against standard supine technique. Smartphone inclinometer measurement has been shown valid and reliable (Keogh et al., systematic review, PLOS ONE, 2019). Measuring is free and unlimited: all 55 movements, every joint from the neck to the fingertips, plus Quick Angle and a built-in Level. No measurement caps, no ads, no account, and no trial needed to measure. The free tier also includes your first patient profile, unlimited PDF and CSV export (watermarked, never capped), and a Face ID lock. Pro is a one-time purchase, never a subscription. MEASURE IN SECONDS • Live, gravity-referenced angle, large and readable • Flat and upright starts read 0° automatically — no calibration, with a Set Zero override for patients who can't reach the standard position • Stability indicator: lock only when steady • Optional spoken angle, so both hands stay free ANIMATED PLACEMENT GUIDES Every movement has a step-by-step animated guide with an anatomical diagram: patient position, exactly where the iPhone lies, and the motion from start to end range. 55 MOVEMENTS — NECK, UPPER AND LOWER EXTREMITY, AND EVERY FINGER Cervical spine flexion, extension, lateral flexion, and rotation · shoulder flexion, extension, abduction, and internal/external rotation · elbow flexion and extension · forearm pronation and supination · wrist flexion, extension, and radial/ulnar deviation · hip flexion, extension, abduction, adduction, and internal/external rotation · knee flexion and extension · ankle dorsiflexion and plantarflexion. HAND & FINGER ROM Measure every finger and thumb joint — MCP, PIP, and DIP (and thumb MCP/IP), flexion and extension — with a guided two-placement technique. Patient Profiles compute Total Active Motion (TAM) per digit automatically — a standout for hand therapists (CHTs). QUICK ANGLE & LEVEL — MEASURE ANY ANGLE Measure any angle with Quick Angle — wheelchairs, splints, ramps, and seating — and check that footplates and trays sit even with the built-in Level. NORMAL ROM REFERENCE A searchable reference of normal range values, linked to each placement guide. PATIENT PROFILES — YOUR FIRST ONE IS FREE Create a profile with a de-identified label, a movement checklist, and left/right sides, then record a reading for each movement. Tag readings active or passive (AROM/PROM) and add, correct, or backdate any reading. A deletable example patient shows trend charts, summaries, and reports instantly. PRIVATE BY DESIGN — NO DATA COLLECTED Fully offline: no accounts, no servers, no analytics, no tracking — the App Store privacy label reads "Data Not Collected." Profiles use de-identified labels, are encrypted on device, stay out of cloud backups, and leave your iPhone only when you export a report yourself. Designed to support HIPAA-compliant documentation, with a Face ID lock and permanent deletes. TRY PRO FREE Use every Pro feature free as you get started — no credit card, no auto-charge, nothing to cancel. GONIOMETER PRO • Unlimited patient profiles • Progress history: every reading kept and graphed • Goal tracking: a target angle per movement, on every chart and report • Total Active Motion (TAM) per finger, computed automatically • Side-to-side comparison as a percentage of the other limb • Watermark-free PDF and CSV reports with clinical summary and charts • Clinic letterhead: your clinic's name and logo on every report • Hands-free auto-lock once the limb is held steady Goniometer is an educational and reference tool. It is not a medical device and is not intended for diagnosis or treatment decisions. ## Key features - Live angle measurement - Animated placement guides - 47 supported movements - Hand and finger ROM tracking - Patient profiles - Normal ROM reference ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Goniometer Pro | $4.99 | one-time | ## Recent user reviews (9 of 9) All indexed reviews: https://appshunter.io/ios/app/goniometer-range-of-motion/id6779455734/reviews.md ### 3/5 — Good for (very limited) options *2026-08-10* Limited options for hip motions But great for what it does. But since it won’t collect the information that I need, I have to give it a 3 **Developer response:** Thank you for the helpful feedback! We just released v1.8.0 which includes hip abduction, hip adduction, hip internal rotation, hip extension, shoulder extension, shoulder internal rotation, forearm supination, forearm pronation. Hopefully you can give it another try and let me know what other movements we should add and any other feedback! ### 5/5 — Easy and accurate *2026-08-03* Great instructions, easy to use, and accurate. Overall great app using the phone’s built in tools. ### 5/5 — mlowedc *2026-07-19* The best Goniometer app for measuring patient ROM. Very quick, easy to use, and accurate! ### 5/5 — Easy to use at home *2026-07-18* I have been having knee pain and decreased range of motion. I was able to easily use this app to track my range of motion over time ### 5/5 — Very functional *2026-07-10* Very useful and easy to use digital goniometer. I use it pretty much every day and have had no issues with it ### 5/5 — Helpful! *2026-06-28* Makes workflow much faster ### 5/5 — Convenient & Useful *2026-06-24* This app is easy to use and does the job well. Perfect resource for therapists and providers to use. Would recommend! ### 5/5 — Sleek, accurate and overall a great app! *2026-06-19* This goniometer app is different from everything else that’s out there. It is incredibly easy to take quick measurements of lower and upper body range of motion. The visual guides make it easy to know what and how to measure correctly. I love the styling and theming of the app, it makes it easy to capture the ROM angles and know what I’m looking at. The developer clearly understands human factors in a healthcare setting and translates that beautifully into a usable app. The text-to-speech readings are also very helpful when your hands are tied up. Try this app! ### 5/5 — Convenient and accurate *2026-06-18* This app is convenient because I always have my phone on me. I can never find a Goniometer lying around. ## Frequently asked questions about Goniometer ### What is Goniometer used for? Goniometer is used to measure joint range of motion (ROM) accurately using your iPhone's motion sensors. It's designed for medical professionals and patients to track recovery and assess joint angles. ### Is Goniometer free to use? The basic version of Goniometer is free and includes features like live angle measurement, animated guides, and one patient profile. Additional features like unlimited profiles and progress history are available through a one-time purchase. ### What types of movements can Goniometer measure? Goniometer supports the measurement of 47 movements across the neck, upper and lower extremities, and every finger and thumb joint, including specific measurements for MCP, PIP, and DIP joints. ### Does Goniometer have ads? Goniometer does not contain advertisements. The app is free to download with optional in-app purchases for advanced features. ### Can Goniometer be used for patients with limited starting positions? Yes, Goniometer offers a 'Set Zero baseline override' feature, allowing you to set a custom zero point for patients who cannot achieve the standard starting position. ### What devices does Goniometer support? Goniometer is currently supported on iPhones. The app requires iOS 13.0 or later for optimal performance. ### How accurate is Goniometer? Smartphone inclinometer measurement has been shown to be valid and reliable for joint range of motion in peer-reviewed research, as cited in a PLOS ONE systematic review from 2019. ### What is Total Active Motion (TAM) in Goniometer? Total Active Motion (TAM) is a feature available in the Pro version that automatically computes the total active motion for each finger digit, which is particularly useful for hand therapists. ## Version history (last 5 releases) ### 1.8.0 — 2026-08-17 • 8 new movements — forearm pronation and supination, shoulder extension and internal rotation, and hip extension, abduction, adduction, and internal rotation. 55 movements in all, neck to fingertips • New "See what's included" screen: a clear side-by-side of what's free versus Pro, so you always know measuring stays free • Polish, accessibility, and reliability improvements ### 1.7.0 — 2026-08-09 • Set Zero now works from any starting position on more movements — an optional Set Zero on wrist flexion/extension and on elbow, shoulder, and hip flexion lets you measure rotated or off-axis positions that a gravity reading alone can't capture • Finger and thumb extension now reads a deficit as negative and hyperextension as positive, matching elbow and knee — so the two no longer look alike • New guided first run: pick your role, take a live measurement, and compare left versus right — hands-on from the first tap • Polish, accessibility, and reliability improvements ### 1.6.0 — 2026-08-06 • Your free Pro trial is now paced by how much you use the app instead of a 7-day countdown — take your time exploring every Pro feature as you save your first readings • Readings, goals, trends, and PDF reports now consistently use "ROM" (range of motion) for clearer, more familiar clinical wording • Polish, accessibility, and reliability improvements ### 1.5.1 — 2026-08-02 • Clearer Pro PDF reports — the assessment table now reads left-to-right consistently, with a clearer range-of-motion column heading • Polish and reliability improvements ### 1.5.0 — 2026-07-26 • Compare both sides: from any locked reading, measure the opposite side and see left and right together • Home is reorganized around what you do most, with a card to continue a profile you haven't finished • The 47 movements now have their own searchable screen, with your recent movements one tap away • Patient Profiles: swipe to edit or delete, sort by most recent or label, and search once you have a few • Profile labels can now be up to 12 characters and accept numbers, spaces, and hyphens — "PT 3B" or "JD-KNEE" • Cervical flexion and extension now record one reading instead of left and right, since they have no sides. Readings you already saved are kept • Polish, accessibility, and reliability improvements ## Apps similar to Goniometer | App | Rating | Price | Category | | --- | --- | --- | --- | | [Physical Therapy: ACL & Knee](https://appshunter.io/ios/app/physical-therapy-acl-and-knee/id1477712207) | 4.4 (155) | Free | Medical | ## More apps by KEVIN LAN - [TaxFacts: Tax Calculator](https://appshunter.io/ios/app/taxfacts-tax-calculator/id6771587991) All apps by KEVIN LAN: https://appshunter.io/developer/6771587993 ## Related topics [goniometer](https://appshunter.io/ios/topics/goniometer) · [free goniometer](https://appshunter.io/ios/topics/free-goniometer) · [pt goniometer](https://appshunter.io/ios/topics/pt-goniometer) · [goniometer medical](https://appshunter.io/ios/topics/goniometer-medical) · [goniometer pro](https://appshunter.io/ios/topics/goniometer-pro) · [knee goniometer](https://appshunter.io/ios/topics/knee-goniometer) · [wrist motion tracker](https://appshunter.io/ios/topics/wrist-motion-tracker) · [otworld](https://appshunter.io/ios/topics/otworld) · [yirahfit](https://appshunter.io/ios/topics/yirahfit) · [mirrorar motion capture](https://appshunter.io/ios/topics/mirrorar-motion-capture) · [inescop yourfeet](https://appshunter.io/ios/topics/inescop-yourfeet) · [oxiline scale md pro](https://appshunter.io/ios/topics/oxiline-scale-md-pro) · [enterprise posturescreen](https://appshunter.io/ios/topics/enterprise-posturescreen) · [isowalk](https://appshunter.io/ios/topics/isowalk) · [human motion analyzer](https://appshunter.io/ios/topics/human-motion-analyzer) · [range of motion](https://appshunter.io/ios/topics/range-of-motion) · [silvair commissioning](https://appshunter.io/ios/topics/silvair-commissioning) --- *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 2026-08-26.*