
Angulus Pro - Precision Angle
Measure angles, professionally
Free · In-App Purchases · Designed for iPad
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
This app has not received enough ratings or reviews to display an overview.
[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
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
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
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Angulus Pro Annually USD 19.99
- Angulus Pro Monthly USD 1.99
- Copyright
- © 2025 Yonaga LLC
