Comparison

Heart Plot vs PostureLens

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Heart Plot

Features
Read full description

IMPORTANT: This app REQUIRES a Polar H10 heart rate sensor. Heart Plot is a specialized tool designed specifically for use with the Polar H10 chest strap to visualize your heart’s rhythm in real-time using advanced Lorenz (Poincaré) plotting. By measuring the precise RR-intervals (the time between two heartbeats), Heart Plot maps your heart's behavior onto an X-Y axis. This visualization reveals the "geometry" of your heart rate, allowing you to see patterns that a simple pulse reading would never show. SEE YOUR HEART RHYTHM IN REAL-TIME - Whether you are a "data geek," a fitness enthusiast, or someone monitoring for heart irregularities, Heart Plot provides a live, growing window into your cardiac health. - Detect Irregularities: Easily spot premature contractions, or skipped beats as they happen. The visual patterns created on the Lorenz plot can help identify specific types of arrhythmia. - Capture Episodes: Perfect for users trying to "catch" an intermittent heart event to share with their healthcare provider. - Fitness & HRV: Monitor your Heart Rate Variability (HRV) visually during rest or training sessions. - Built for Endurance: Heart Plot is optimized for long-term monitoring. Whether it’s a quick check, a fitness session, or a 24-hour to 48-hour continuous measurement, the app handles long data sets with ease. KEY FEATURES: - Live Lorenz Plotting: Watch your heart’s "signature" form as the plot grows with every beat. - Stay-Awake Mode: A dedicated toggle to keep your screen on for constant monitoring during workouts or clinical observation. - High-Resolution Data: Captures every RR-interval directly from the Polar H10. - Data Export: Done with your measurement? Download the raw data as a CSV file (including all RR-intervals and timestamps) via the standard Apple Share Sheet for further analysis in Excel, Python, or R. PRIVACY FIRST Your health data is yours alone. Heart Plot does not store your data on any cloud servers. All measurements remain locally on your iPhone until you choose to export them or take a screenshot. MEDICAL DISCLAIMER: Heart Plot is a data visualization tool and is not intended to diagnose, treat, or prevent any medical condition. Please consult with a medical professional to interpret the data. The patterns revealed in the Lorenz plot are for informational and educational purposes. Requirements: - Polar H10 Heart Rate Sensor (Chest Strap) - Bluetooth-enabled iPhone

About

PostureLens

Analyze your posture from a single photo to receive personalized feedback and AI-generated visuals of your corrected alignment. Identify and address issues like forward head and rounded shoulders to improve your overall posture and ease discomfort.

Highlights
  • AI posture analysis from photos
  • Personalized feedback and fixes
  • AI-generated ideal posture visuals
  • Focus on pain points (neck, back)
  • Checks head-to-toe alignment
  • Goal-setting for appearance or pain relief
Features
Read full description

Your posture says more than you think — and most of us have no idea what ours actually looks like. PostureLens is your pocket posture coach: take one photo, and in seconds you get clear, specific feedback on what's off and exactly how to fix it. HOW IT WORKS 1. Tell us your goal — look better, or ease aches 2. Take or choose one photo of yourself standing (side-on reads best) 3. PostureLens analyzes your alignment head to toe 4. Get ranked, plain-English fixes — plus an AI photo of your corrected posture, so you can SEE the difference on your own body WHAT IT CHECKS - Forward head and rounded shoulders - Upper-back rounding and lower-back curve - Pelvic tilt, hips, and knees - Overall head-to-toe alignment, judged against proven postural-assessment principles SEE YOUR IDEAL POSTURE Every analysis comes with a side-by-side: your photo vs. an AI-generated image of you standing in better alignment. The fix actually clicks when you can see it on yourself. FOCUS ON YOUR PAIN Tell PostureLens where you hurt — neck, shoulders, back — and it pays extra attention there, flagging the posture habits most likely tied to your discomfort. WHO IT'S FOR Desk workers, gym-goers, and anyone who catches their reflection and wonders why they slouch. PostureLens gives you the honest second opinion most people never get. Your first analysis is free. PostureLens Pro unlocks unlimited analyses. - - - PostureLens Pro is an auto-renewing subscription. - 7-day free trial, then $4.99/month or $29.99/year - Payment is charged to your Apple ID at confirmation of purchase - Auto-renews unless canceled at least 24 hours before the end of the current period - Manage or cancel anytime in your Apple ID settings Privacy Policy: https://docs.google.com/document/d/1sY-UL_7lit5d4sMmfudK0sYWCfRa6NiZ2tmigpi4zdA/edit?usp=sharing Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ PostureLens gives general posture feedback for informational purposes and is not medical advice. It does not diagnose any condition.

Screenshots

Heart Plot4 screens
PostureLens3 screens

Verdict

The call

The clearest difference is update cadence: PostureLens at every 3 days against Heart Plot's every 2 weeks. PostureLens also leads on iOS requirement (17.0 vs 26.2). On price, ads, in-app purchases and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Heart Plot sells 1 one-off in-app purchase and PostureLens sells 2 in-app purchases, starting at $4.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Heart Plot ships an update every 2 weeks, PostureLens every 3 days. The most recent releases landed on August 25, 2026 and September 7, 2026 respectively.

Scorecard2 real differences · 8 level
Heart Plot versus PostureLens: the parameters behind the verdict, then further details
ParameterHeart PlotPostureLens
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 2 weeksEvery 3 days — better
AdsNoNo
In-app purchasesYesYes
Monetization—Freemium
DevicesiPhoneiPhone
Requires iOS26.217.0 — better
Further details — not scored
Size3 MB16 MB
Age rating4+4+
DeveloperOle LuhrsNicholas Oganesoff

In-app purchases

1 purchases

Heart Plot

One-time1
  • Heart Plot Premium$1.99
2 purchases

PostureLens

Subscriptions2
  • PostureLens Monthly7 Days trial$4.991 Month
  • PostureLens Pro Annual7 Days trial$29.991 Year

Questions

Is Heart Plot free?
Heart Plot is free to download, with in-app purchases available.
Is PostureLens free?
PostureLens is free to download, with in-app purchases available.
Do Heart Plot or PostureLens have ads?
Neither Heart Plot nor PostureLens shows ads.
Which is updated more often, Heart Plot or PostureLens?
Heart Plot ships an update every 2 weeks, and PostureLens every 3 days. Most recently, Heart Plot was updated on August 25, 2026 and PostureLens on September 7, 2026.

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