The app
What does it do?
Gait Positive records walking and running with the iPhone camera, on a treadmill or overground. You play it back in slow motion, see a pose skeleton on the video, and read 2D joint angles: knee, hip and shank (tibia).
Which iPhones are supported?
iPhones on iOS 17 or later. The frame rate depends on the camera in your iPhone: up to 240 fps where the main camera supports it. Each session shows the frame rate it was recorded at.
Do I need markers, sensors or extra hardware?
No markers and no sensors. The skeleton comes from the video. A phone stand or tripod helps you keep the phone level at knee height, 2–3 m from the client.
Where are the videos stored?
On the iPhone, with the client, under iOS file protection. Nothing is uploaded. There is no account. Video leaves the phone only when you export it.
What can I export?
Three files: the video with the skeleton drawn on it, the data as CSV (one row per analysed frame: body points and 2D angles), and the original video.
Does it diagnose anything?
No. Gait Positive is a measurement and video tool. It does not diagnose. Clinical judgement stays with the clinician.
How accurate are the angles?
They are 2D measurements from one camera view. They change with camera height, distance, view, lighting and clothing. The app has not been validated against a lab system yet. Use the numbers to track and compare a client under the same set-up, and judge them with your own eyes on the video.
How much will it cost?
Pricing is not set. Join the waitlist for founding clinic pricing.
Clinical use, data and devices
Treadmill or overground?
Both. Choose Treadmill (with the belt speed) or Overground for each capture. Treadmill is the easiest place to start, because the client stays in the frame.
Can I use it on Android?
No. Gait Positive is a native iPhone app.
Do I need an internet connection?
No. Recording, playback and pose tracking run on the iPhone. You need a connection only to share an export.
Do I need client consent?
Gait video is health information. Get and record consent the same way you do for clinical photos and video, under the rules that apply to you (for example the Australian Privacy Principles, UK GDPR or HIPAA).
What happens if I lose my phone?
The videos are on the device under iOS file protection. Use a passcode, Face ID or Touch ID, and Find My iPhone. Export the sessions you must keep into your clinical records system.
Does it work with Foot Positive?
Foot Positive is the sister app for 3D foot scans. Scan and gait for the same client is coming.
Does it connect to my practice management software?
Not yet. Tell us which system you use when you join the waitlist.
Who makes it?
A practising podiatrist and developer in Brisbane, Australia. More about us.
Join the waitlist
Gait Positive is in TestFlight beta now. It is not on the App Store yet. We are adding clinics in small groups, Australia first. Tell us about your clinic and we will be in touch.
- Founding clinic pricing
- Video stays on your iPhone
- Direct line to the podiatrist who builds it