Angulus Pro: Clinically Validated Angle Measurement
Trusted by researchers worldwide with 30+ 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
• 30 published studies using Angulus (2021-2025)
• 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/
Ratings & Reviews
4.6
out of 5
24 Ratings
[Version 2.1.0]
• Added German and Traditional Chinese language support
• Color themes for measurement markers
• Redesigned settings dashboard
• In-app notifications
• Improved marker visibility
Version 2.1.0
The developer, Yonaga, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
Usage Data
Diagnostics
Privacy practices may vary, for example, based on the features you use or your age. Learn More
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
Seller
Yonaga LLC
Size
121.1 MB
Category
Utilities
Compatibility
Requires iOS 17.6 or later.
iPhone Requires iOS 17.6 or later.
iPad Requires iPadOS 17.6 or later.
Mac Requires macOS 15.0 or later and a Mac with Apple M1 chip or later.
Languages
English and 12 more
English, Arabic, French, German, Hindi, Indonesian, Italian, Japanese, Korean, Portuguese, Simplified Chinese, Spanish, Traditional Chinese