About
XCSoar is a powerful, privacy-respecting, open-source tactical glide computer released under the GNU/GPL License. Built for glider and paraglider pilots, it combines a rich moving map — sourced from worldwide terrain, topography, and airspace databases including OpenAIP — with a full suite of in-flight tools to support safer and more competitive flying. Core capabilities include real-time navigation calculations, thermal assistance to help pilots find and center thermals, and FLARM integration for collision avoidance and traffic awareness. Task planning covers AAT, racing, and cross-country formats, while contest scoring integrates automatically with WeGlide and SkyLines tracking for seamless logging. Weather support spans METAR, RASP forecasts, satellite imagery, and automatic thermal maps from TIM. Airspace warnings deliver real-time alerts with flexible filtering. Broad device compatibility allows integration with instruments from many manufacturers, and detailed flight analysis — including barograms and performance metrics — helps pilots review and improve after every flight. XCSoar runs on Android, iOS, Windows, and Linux, making it accessible on smartphones, tablets, and dedicated avionics hardware. Because it is libre software, anyone can run, study, share, and modify it without restriction. Whether used for local training flights, cross-country adventures, or national-level competitions, XCSoar gives pilots the situational awareness and planning tools they need to make informed decisions in the air.
Key Features
- Moving Map with Worldwide Data: Displays terrain, topography, and airspace sourced from global databases including OpenAIP, giving pilots a comprehensive in-flight picture.
- Thermal Assistance: Real-time guidance helps pilots locate and center thermals more efficiently, improving climb rates and cross-country performance.
- FLARM Integration: Connects with FLARM devices to provide collision avoidance alerts and live traffic information for enhanced safety.
- Task Planning & Contest Scoring: Supports AAT, racing, and cross-country task formats with automatic scoring integration via WeGlide and SkyLines tracking.
- Weather & Airspace Integration: Pulls METAR, RASP forecasts, satellite imagery, and TIM thermal maps, alongside real-time airspace warnings with customizable filtering.
Use Cases
- Cross-country glider navigation using real-time moving maps and task planning tools.
- Competition flight management with automatic WeGlide and SkyLines contest scoring.
- Thermal hunting assistance to improve climb efficiency during soaring flights.
- Airspace awareness and FLARM-based collision avoidance for safer local and cross-country flying.
- Post-flight analysis using barograms and performance metrics to review and improve pilot technique.
Pros
- Completely Free and Open-Source: Released under the GNU/GPL License, XCSoar costs nothing and can be freely studied, modified, and redistributed by anyone.
- Broad Multi-Platform Support: Runs natively on Android, iOS, Windows, and Linux, covering everything from budget smartphones to dedicated avionics units.
- Comprehensive Feature Set: Covers the full gliding workflow — navigation, thermals, tasks, weather, airspace, FLARM, flight analysis — in a single application.
- Privacy-First Design: Built with privacy in mind; no mandatory accounts, tracking, or cloud lock-in required to use the software.
Cons
- Highly Niche Audience: Designed exclusively for glider and paraglider pilots, so it has limited relevance outside the soaring community.
- Steep Learning Curve: The breadth of features and aviation-specific terminology can be overwhelming for new pilots without prior experience with glide computers.
- No Official Commercial Support: As a community-maintained open-source project, support relies on forums and volunteer contributors rather than a dedicated helpdesk.
Frequently Asked Questions
Is XCSoar free to use?
Yes. XCSoar is completely free software released under the GNU/GPL License. There are no subscription fees, in-app purchases, or premium tiers.
Which platforms does XCSoar support?
XCSoar runs on Android, iOS, Windows, and Linux. It can be installed on smartphones, tablets, and dedicated glider avionics hardware.
What is FLARM integration and why does it matter?
FLARM is a collision avoidance system common in gliding. XCSoar connects to FLARM devices to display nearby traffic and issue collision warnings in real time, improving safety in the air.
Can XCSoar be used in competitions?
Yes. XCSoar supports AAT, racing, and cross-country task formats and integrates automatically with WeGlide and SkyLines for contest scoring and tracking.
Where does XCSoar get its maps and weather data?
Map data comes from worldwide terrain and airspace databases including OpenAIP. Weather data is pulled from METAR reports, RASP forecasts, satellite imagery, and TIM for automatic thermal maps.
