Posture Photo Progress Tracker

Yes. Plumbline is built around a standardized photo timeline: it guides you to take the same back or side photo each month, overlays a true-vertical reference line and shoulder and hip markers, and stacks the photos chronologically. Because every photo is captured from the same pose and distance, the comparison actually means something.

Consistency is the hard part — small changes in distance, camera tilt, or stance make photos incomparable. Plumbline solves this with live guidance: a body-pose overlay, a distance guide, and a phone-level indicator, and the shutter only unlocks when your pose matches the standard. That discipline is what makes month-over-month comparison honest.

Modern iPhones can detect human body landmarks like shoulders and hips directly on the device, with no photo leaving the phone. Plumbline uses that on-device detection to draw shoulder-line and hip-line markers on each photo and to describe tilt in plain words such as even or slight lean left.

No, and that is deliberate. Phone-based angle measurements tend to be unreliable, and a degree number can be misleading. Plumbline never outputs an angle or a diagnosis — it gives you standardized photos, a vertical reference line, and descriptive words, so you can see your own trend and discuss it with a clinician.

No. Plumbline is a personal photo journal, not a medical device. It does not diagnose, measure, or treat scoliosis or any other condition. It helps you keep an honest visual record between appointments; diagnosis and treatment decisions belong with your clinician.

A plumb line is the carpenter's weighted string that shows true vertical — the original tool for checking whether something stands straight. In posture photography, a vertical reference line down the frame makes it easy to see how the body aligns relative to true vertical. The app draws this line on every photo, which is where its name comes from.

Clinicians often say to monitor things between appointments, but a gym-mirror selfie taken from a different angle each time tells you little. A repeatable routine works better: same pose, same distance, same day of the month. Plumbline enforces exactly that routine and keeps the results on a private timeline you can export as a PDF for your next visit.

Yes. A common use is a parent keeping a monthly photo record for a teenager who is being monitored between check-ups. All photos stay on the device with no account and no upload, and the export to PDF is always a deliberate, user-initiated action.

Photos and landmark data stay entirely on your iPhone. There is no account, no cloud sync, and no analytics on your images. The only way anything leaves the device is if you export a PDF or photo yourself.

Yes. Each photo session can include a journal entry with brace-wear hours, a simple 0–10 stiffness note, and free text. Keeping that context next to the visual record helps you and your clinician see how habits and comfort line up with what the photos show.

Posture exercise apps teach stretches and routines; they generally have no way to show whether anything is changing. A posture tracker like Plumbline is the other half: a standardized photo record that shows your trend over months. You can use both — exercises from wherever you like, and Plumbline as the honest before-and-after.

Plumbline generates a clean PDF report from your photo timeline, including the plumb-line overlays and your journal notes. You can print it, email it yourself, or show it on your phone at the appointment. Many people find a standardized visual record makes those conversations far more concrete.