The short answer
flyXC is excellent and completely free: pick it for live tracking and quick route planning. Pick XCviewer when you want to dig into a flight after landing (graphs, thermals, several pilots in sync), keep a logbook, check flyability or make a video.
Choose flyXC if…
- You want to follow pilots live from InReach, Spot, XCTrack via XContest, FlyMaster or OGN.
- You need a free route planner and do not want a subscription.
- You value open-source software built with the community.
Choose XCviewer if…
- You want a detailed post-flight analysis: synchronized graphs, colors by vario or glide, KK7 thermals and measurements in 3D.
- You want to replay up to 10 flights in sync to compare your decisions with your friends.
- You want a logbook, shareable replays and cinematic videos.
- You want weather, a flyability score and an airspace check next to your route.
Feature by feature
| Feature | XCviewer | flyXC |
|---|---|---|
| Works in the browser | YesWeb app, also on phones and tablets | Yes |
| 3D replay of IGC files | YesFree | YesFree |
| Flight analysis (graphs, climbs, glides) | YesGraphs on the free plan; KK7 thermals and advanced colors in Pro | PartlyAltitude chart along the track |
| Several flights replayed together | Paid planUp to 10 flights in sync | YesSeveral tracks on the same map |
| Video export | Paid planAutomatic camera styles and a video Studio | Not listed |
| Flight logbook | Partly2 saved flights free, unlimited in Pro | Not listed |
| XC route planner | Paid planFAI triangles, XContest-style scoring, wind-aware glide | YesFree, with distance and XC score |
| Airspace | Paid planAirspace map and 3D route analysis | YesOn the map and in 3D (ground footprint) |
| Paragliding weather | YesForecast free; flyability score, wind layers, stations and webcams in Pro | PartlySoundings through the flyXC plugin for Windy |
| Live tracking | Not listed | YesInReach, Spot, XCTrack via XContest, FlyMaster, OGN and more |
| Price | Free plan, Pro subscription (monthly or yearly) | Free and open source, funded by donations |
“Paid plan” means the feature needs a subscription. “Not listed” means we could not find the feature on the tool’s website.
Information checked on October 7, 2026 from each tool’s public website. Features and prices change: if something is out of date, write to us and we will correct it.
SkyViz, flyXC, SeeYou, Google Earth, Ayvri, Doarama, XContest, XCTrack and the other names mentioned are trademarks of their respective owners. XCviewer is not affiliated with them.
XCviewer in action
Real screens from XCviewer. Each one links to a step-by-step tutorial.
3D replay of an IGC flight on real terrain, right in the browser
See the tutorial
FAI triangle planner with turnpoint cylinders, leg distances and an automatic validity check
See the tutorial
Paragliding weather with wind at altitude, thermal strength and a flyability score
See the tutorial
Try XCviewer with your own flight
- 1
Download the IGC file of a recent flight from your instrument, XCTrack or XContest.
- 2
Create a free XCviewer account and drop the file into the upload area.
- 3
Open it in 3D, then look at the graphs to see where you climbed and where you lost height.
Frequently asked questions
Is flyXC free?
Yes. flyXC is free and open source, and its development is funded by donations. XCviewer has a free plan (3D replay, graphs, weather, 2 saved flights) and a Pro plan for planning tools, unlimited flights and video.
Does XCviewer offer live tracking?
No. XCviewer works with the IGC file after the flight. For live tracking, flyXC is a great free option, and you can open the same flight in XCviewer afterwards.
Which XC planner should I use?
flyXC’s planner is free and quick to use. XCviewer’s planner, in Pro, adds FAI triangle optimization, wind-aware glide calculations, 3D terrain and an airspace profile along the route.