See the Progress Your Body Can't Always Feel
Measure your knee angle with a photo. Track flexion and extension over time so you know you're on track — even on the days it doesn't feel like it.
Screenshot coming soon
Three simple steps to get started.
01
Take a side photo of your knee
Stand or sit with your knee visible from the side. Use your phone camera or ask someone to snap a quick photo.
02
Upload and get your angle instantly
Our PT-designed tool detects your knee landmarks and calculates your flexion or extension angle in seconds.
03
Watch your progress on a chart
Every measurement is saved to your personal timeline. See the trend line climbing — even when the tight band feeling says otherwise.
Between PT visits, most patients have no idea if they're on track or falling behind.
A single number can quiet the worry on a tough day.
Tracking trends over weeks matters more than any single measurement.
Bring your chart to appointments and show your surgeon exactly where you stand.
“My PT only measures me once a week. Between visits I had no idea if I was on track. Seeing that I'd gone from 78° to 94° in three weeks told me the exercises were actually working.”
Robert
8 weeks post-TKA
How accurate is a phone measurement?+
Smartphone-based angle measurement is significantly more reliable than visual guessing. While nothing replaces your therapist's goniometer, our tool gives you a consistent way to track trends between visits. Most users find it matches their PT's reading within a few degrees.
How often should I measure?+
Every few days is a great rhythm. Measuring too often can feed anxiety, especially on swollen mornings. What matters most is the trend over weeks, not any single reading.
Can I share my results with my physical therapist?+
Absolutely. Many patients bring their progress chart to appointments. Your PT can see the trend between visits and adjust your program accordingly. It's one of the best ways to make the most of your clinic time.
Start tracking your recovery today.
Free, private, and built by a physical therapist who understands what recovery really looks like.