# SkewTLogPro > Professional skew-t log-p diagram app for aviation weather on iPhone and iPad ## About SkewTLogPro is the leading iOS application for accessing and analyzing skew-t log-p diagrams (atmospheric soundings). Designed for pilots, meteorologists, glider pilots, and aviation weather enthusiasts, the app provides professional-grade thermodynamic charts for pre-flight weather briefings and atmospheric analysis. ## Key Features - **Skew-T Log-P Diagrams**: Interactive thermodynamic charts displaying temperature, dew point, and wind data at various altitudes - **HRRR Weather Model**: High-Resolution Rapid Refresh data with hourly updates for short-term forecasting (18-48 hours) - **GFS Weather Model**: Global Forecast System data with forecasts extending up to 16 days - **Route Planning**: Plan flight routes and view atmospheric conditions along your path - **Offline Access**: Download charts for offline viewing during flight - **CAPE/CIN Analysis**: Convective Available Potential Energy and Convective Inhibition calculations - **Universal iOS App**: Works on both iPhone and iPad with a single subscription ## Use Cases - Commercial and private pilots for pre-flight weather briefings - Glider and soaring pilots for thermal and lift analysis - Meteorology students and professionals for atmospheric study - Storm chasers for convective weather forecasting - Aviation weather enthusiasts ## Availability - Platform: iOS (iPhone and iPad) - Download: Available on the Apple App Store - Pricing: Free download with annual subscription for full access ## Pages - / - Home page with app overview, features, and pricing - /features - Detailed feature descriptions - /insights - Aviation weather blog and articles - /changelog - App version history and updates - /contact - Contact form - /privacy - Privacy policy ## Contact Website: https://skewtlogpro.com