Dwidar β-hCG & PUL Reference is a clinician-led educational and clinical reference application designed to support healthcare professionals in understanding β-hCG trends and Pregnancy of Unknown Location (PUL) pathways. The application is based on internationally recognized clinical guidelines, including Irish National Guidelines, NICE, and RCOG recommendations. KEY FEATURES: • 48-hour β-hCG trend calculator with strict validation (46–50 hour range) • Clear classification pathways for PUL risk assessment • Guideline-based clinical reference content • Interactive and user-friendly design optimized for iPhone and iPad • Fully offline functionality (internet required only for external reference links) IMPORTANT NOTICE: This application is intended strictly for educational and clinical reference purposes only. It does NOT provide medical diagnosis or treatment decisions. It must not be used as a substitute for professional clinical judgment. Clinical decisions must always be made by qualified healthcare professionals. DATA PRIVACY: • No personal data is collected • No patient data is stored or transmitted • No login or account required • No analytics or tracking This application is NOT a medical device and is designed solely to support safe, guideline-based clinical understanding.