Comparison

Angulus Pro vs OrthoMeasure

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

Head to head
About

Angulus Pro

This app provides professional-grade angle measurements for clinical and personal use. It offers high precision, multiple measurement modes, and AI-powered camera assistance for accurate assessments and progress tracking.

Highlights
  • Precision to 0.01°
  • Four Measurement Modes
  • AI-Powered Camera Overlay
  • Real-Time Analysis
  • Clinical Documentation & Export
  • Progress Tracking
Features
Read full description

Angulus Pro: Clinically Validated Angle Measurement Trusted by researchers worldwide with 40+ peer-reviewed publications. Angulus Pro delivers professional-grade angle measurements validated in leading medical journals: • Journal of Medical Internet Research • Journal of Clinical Orthopaedics and Trauma • Journal of Neuromuscular Diseases → Learn more: https://www.yonaga.app/angulus/research Research Validated • 40 published studies using Angulus (2021-2026) • 3,000+ patients assessed by researchers • Validated against gold-standard goniometry • Applied in orthopedics, rehabilitation, neurology, and sports medicine Key Features • Precision to 0.01°: Professional accuracy for clinical assessments • Four Measurement Modes: V, W, X, and N modes for ROM, fractures, and specialized angles • AI-Powered Camera: Overlay technology for precise alignment • Real-Time Analysis: Instant measurements from camera or photo library • Clinical Documentation: Add annotations and export reports • Progress Tracking: Monitor improvement over time Professional Applications • Joint range of motion (ROM) • Hallux valgus and deformity angles • Fracture assessment • Postural analysis • Telehealth assessments For Patients and Non-Clinical Users • Track rehabilitation progress • Share measurements with providers • Sports performance analysis Privacy Policy: https://www.yonaga.app/angulus/privacy Terms of Use (EULA): Yonaga - https://yonaga.app/angulus/terms Apple - https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

About

OrthoMeasure

Accurately measure clinical angles using your iPhone's motion sensors. This digital goniometer provides precise readings on X-rays or during examinations with a simple two-tap system. Get instant, clear display of all corresponding angles.

Highlights
  • Precise angle measurement
  • Simple 2-tap system
  • Visual angle display
  • Full angle display (acute, obtuse, reflex)
  • Clean, dark-mode interface
  • Uses device motion sensors
Features
Read full description

Measure clinical angles with precision and ease. OrthoMeasure turns your iPhone into a fast, accurate digital goniometer, perfect for measuring angles on X-rays, during clinical examinations, or anywhere you need a reliable reading. Stop guessing or relying on bulky physical tools. OrthoMeasure uses your device's advanced motion sensors to calculate angles with just two simple taps. HOW IT WORKS: Align First Line: Hold your iPhone parallel to the first line (e.g., the top of the spinal curve). Tap to Set: Tap the screen to lock the first angle. Align Second Line: Hold your iPhone parallel to the second line (e.g., the bottom of the curve). Tap to Measure: Tap a final time. OrthoMeasure instantly calculates all four corresponding angles (e.g., 35°, 145°, 215°, 325°) and displays them clearly. FEATURES: High Precision: Uses your device's core motion sensors for accurate, repeatable measurements. Simple 2-Tap System: No complex buttons. Align, tap, align, and tap again. Visual Guide: See the lines you've measured drawn on the screen. Full Angle Display: Instantly get the acute, obtuse, and reflex angles for a complete picture. Clean Interface: A beautiful, dark-mode-friendly interface that stays out of your way. Designed for orthopedic surgeons, chiropractors, physiotherapists, and medical students, OrthoMeasure is the modern, simple way to get the angle you need.

Screenshots

Angulus Pro4 screens
OrthoMeasure3 screens

Verdict

The call

The clearest difference is in-app purchases: OrthoMeasure at none against Angulus Pro's 3. OrthoMeasure also leads on rating (5.0 vs 4.6) and update cadence (every 5 days vs fortnightly). Angulus Pro's advantage is ratings volume (26 vs 1). On price, ads, device support and iOS requirement 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. Angulus Pro sells 3 in-app purchases, starting at $2.99 per month. OrthoMeasure asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

OrthoMeasure holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Angulus Pro has 26 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Angulus Pro ships an update fortnightly, OrthoMeasure every 5 days. The most recent releases landed on September 22, 2026 and September 21, 2026 respectively.

Scorecard5 real differences · 5 level
Angulus Pro versus OrthoMeasure: the parameters behind the verdict, then further details
ParameterAngulus ProOrthoMeasure
PriceFreeFree
Rating4.6 (26 ratings)5.0 (1 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings26 — better1
Update frequencyFortnightlyEvery 5 days — better
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad — betteriPhone
Requires iOS17.617.6
Further details — not scored
Size134 MB3 MB
Age rating4+12+
DeveloperYonagaHadi Altabatabaae

Customer experience

Angulus Pro

All ratings26 ratings
Positive88.5%
Neutral3.8%
Negative7.7%

OrthoMeasure

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

3 purchases

Angulus Pro

Subscriptions2
  • Angulus Pro Monthly7 Days trial$2.991 Month
  • Angulus Pro Annually$29.991 Year
One-time1
  • Angulus Pro Lifetime$49.99
None

OrthoMeasure

No in-app purchases

Questions

Is Angulus Pro free?
Angulus Pro is free to download, with in-app purchases available.
Is OrthoMeasure free?
OrthoMeasure is free to download, with no in-app purchases.
Which has better reviews, Angulus Pro or OrthoMeasure?
OrthoMeasure is rated higher. Angulus Pro averages 4.6 out of 5 from 26 ratings, while OrthoMeasure averages 5.0 from 1 ratings.
Do Angulus Pro or OrthoMeasure have ads?
Neither Angulus Pro nor OrthoMeasure shows ads.
Which is updated more often, Angulus Pro or OrthoMeasure?
Angulus Pro ships an update fortnightly, and OrthoMeasure every 5 days. Most recently, Angulus Pro was updated on September 22, 2026 and OrthoMeasure on September 21, 2026.

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