What's the difference between Free and Pro?

Free gives you 2 sessions a day of up to 10 minutes, plus real-time measurement, posture alerts, neck stretches after every session, streaks, and the monthly calendar. Pro adds unlimited sessions of up to an hour, your posture trend chart, each day on the calendar coloured by how it went, Key Moments snapshots, and session-by-session comparison. The yearly plan starts with a 7-day free trial.

Free · AI-Powered Posture Detection

We catch tech neck the moment it starts.

PostureLens watches your posture while you work and alerts you the second it drops. Just your phone camera — no wearables, no setup. Catch tech neck before it turns chronic.

10 min

Guided session

100%

Private & on-device

Gadgets required

MEASURING

Time left 9:42

SIDE

52°

GOOD

2:14

Good time

0:42

Streak

Recoveries

68% Good 22% Mild 10% Severe

The silent epidemic

8 hours at a desk.
Your neck pays the price.

Forward head posture — also called text neck and tech neck — is the most common postural dysfunction of the digital age. And most people don't notice until the pain is chronic.

Sound familiar? You've already tried...

✕ "Just remembering" to sit straight

✕ $200 posture corrector braces

✕ Timer-based reminder apps

✕ Sticky notes on your monitor

80%

of desk workers affected

develop forward head posture after 6+ hours of daily screen time.

–1.6°

per decade of aging

Your neck angle naturally worsens by 1.6° every decade. Left unchecked, it accelerates into chronic pain.

$2,400

avg. physical therapy cost

The average cost of treating chronic neck pain with physical therapy. Prevention costs a fraction.

How it works

Three steps.
Then just work.

PostureLens home screen with the on-screen reminder to fix your phone on a stand

Stand your phone up

Prop it at desk height where it can see your head and shoulders. A stand, a laptop riser, a propped-up case — anything steady. This isn't a tip; it's how the app works.

A PostureLens session in progress showing a 50 degree Good reading

Start a session, then work

PostureLens follows your neck angle for the whole session and alerts you the second it drops. No account, no wearable.

PostureLens session report with posture band, good time, recoveries and Key Moments snapshots

See where it slipped

Your report shows how much of the session you held it, the moments you caught yourself, and your best and worst posture.

Backed by science

Science-backed measurement
in your pocket

CVA — Craniovertebral Angle

30° Severe 40° Mild 50°+ Normal

CVA is the angle physiotherapy research uses to describe forward head posture. Around 50° and above is generally considered unremarkable; lower values are reported alongside neck complaints in published studies.

✓ CVA is the measurement methodology used in physiotherapy research to quantify forward head posture
✓ Thresholds informed by the Kinovea 2024 reference study (mean CVA 48.76°)
✓ Absolute, not relative. No "personal baseline" calibration — today's angle is directly comparable to next month's.
✓ All AI inference runs on-device with MediaPipe — a 468-point face mesh does the measuring, with shoulder landmarks refining it. Your camera feed never leaves your phone.
✓ Automatic view-type detection — front, side and oblique all work, with the side view the most precise

Not a medical device. PostureLens is a posture-awareness tool. CVA values are estimates from a consumer camera, not a diagnosis. If you have chronic neck pain, headaches, or numbness, see a healthcare professional.

PostureLens Posture Trends: a month of sessions on a calendar coloured green to red, with a good-share and recoveries chart underneath

Your month

One screen tells you
whether it's working.

Every session lands on a calendar, so a month of posture fits in one glance — and you can see whether the last four weeks actually went anywhere.

✓ Free marks the days you measured and keeps your streak.
✓ Pro colours each day by how it went — green, amber, red — so a good week and a bad one look different from across the room.
✓ Pro draws the trend underneath: how much of each session you held good posture, and how often you caught yourself and fixed it. Tap any day for the exact numbers.

FAQ

Common questions

Free

The whole app, every day:

2 sessions a day, 10 minutes each

Pro

Everything in Free, plus:

Unlimited sessions, up to an hour each
Your posture trend — a colour-coded calendar and a week-over-week chart
Key Moments — your best and worst posture, captured

The yearly plan starts with a 7-day free trial.

Yes. All AI inference runs on-device. Your camera feed is never uploaded, stored, or shared. Only the resulting angle numbers are saved locally on your phone.

Yes. Cancel anytime through your Google Play or App Store settings. Pro features stay active until the end of your billing period. No questions, no fees.

No. PostureLens is a posture-awareness tool. CVA values are camera-based estimates, not diagnostic measurements. If you have chronic pain, please consult a healthcare professional.

Ready?

Free to download.
We watch your posture while you work.

2 sessions a day, every core feature, no credit card. Get alerted the second your neck slumps.

PostureLens is a posture-awareness tool, not a medical device. CVA values are camera-based estimates, not diagnostic measurements. For chronic pain, consult a healthcare professional.