Last updated: October 2026
Welcome to XCviewer ("we", "us", "our"). We provide a web application for paragliding pilots to visualize and analyze their flight data. These Terms of Service ("Terms") govern your use of our services. By using XCviewer, you agree to these Terms.
To use certain features of XCviewer, you may need to register for an account, for instance by using a third-party service like Google. You are responsible for maintaining the confidentiality of your account and for all activities that occur under your account.
We reserve the right to suspend, terminate, or delete your account at any time, with or without notice, for any reason or no reason, including but not limited to violation of these Terms, fraudulent activity, or any other conduct we deem inappropriate.
You can upload your flight data (e.g., IGC, KML files). You retain all ownership rights to your data. However, by uploading data, you grant us a worldwide, non-exclusive, royalty-free license to use, reproduce, and display that data in connection with the XCviewer service.
You are solely responsible for ensuring that any content you upload does not violate any third-party rights, including copyright, trademark, or privacy rights. XCviewer is not responsible for any violations of third-party rights resulting from your uploaded content.
Statistics. This license includes using all flights you upload, public or private, to compute aggregated, anonymous statistics about XCviewer (such as numbers of flights, distances flown or active countries and sites) and to publish those figures on our website and in our communication and marketing. Such figures never include a track or anything that identifies you.
Thermal model. This license also includes using the tracks of the flights you upload, public or private, without your name, to train and check XCviewer's thermal model, unless you turn this off in Settings → Privacy. The resulting model contains no track. See section 4 of the Privacy Policy.
Public flights. When a flight is public, because your account is public or because you made that flight public yourself, you also allow us to show it (the track, the takeoff place and country, the date and flight statistics) to signed-in users together with your public username and a 3D replay, and to show it without your username on XCviewer's public pages. This permission ends when the flight stops being public: when you hide or delete it, or, for flights published automatically, when you switch your account to private. Your public username must not be offensive or impersonate someone else; we may remove it. Community flights may only be viewed and replayed within XCviewer; they may not be downloaded, scraped or reused elsewhere. See the Privacy Policy for details.
Featured flights. We may ask you whether we can feature one of your flights that is not public, without your username. We only show it if you accept, and you can hide it at any time.
XCviewer offers both free and premium subscription services.
Free plan. Free accounts choose one of two options. Public account: unlimited storage while your flights are public in the community, with up to 5 uploads per 7 days and 30 per 12 months. Private account: your flights are visible only to you and the friends you choose, up to 2 stored flights, with up to 1 upload per 7 days and 5 per 12 months. A public account requires being 18 or older. You can switch from public to private at any time; after switching, you can go public again after 30 days. Flights uploaded while public stay in your logbook if you switch to private, but you cannot upload more until you are within the private limits. We may change free plan limits with notice.
Paid plans include unlimited private storage. Accounts are private by default; you may choose to make your account public. By subscribing to a paid plan, you agree to the following terms:
With your consent, we use PostHog EU Cloud for product analytics and masked session replay to understand how the service is used and improve confusing or broken interactions. We use Sentry for operational error monitoring. We minimize the data sent to these providers and do not intentionally include flight contents, GPS coordinates, form values, or payment details. You may withdraw analytics consent in your settings. For more details, please see our Privacy Policy.
You agree not to use XCviewer for any unlawful purpose or to engage in any conduct that could damage, disable, or impair our service. Specifically, you agree not to:
Paragliding is inherently dangerous. Do not rely on our service for safety-critical decisions. Our service is for recreational and analytical purposes only. You assume all risks associated with your use of the service.
XCviewer is provided "as is" and "as available" without any warranties of any kind. We do not guarantee that our service will be uninterrupted, error-free, secure, or free from viruses.
To the maximum extent permitted by law, XCviewer, its maintainers, developers, and affiliates are not liable for any damages, losses, or harm of any kind resulting from your use of the service.
XCviewer relies on various third-party services and APIs (e.g., CesiumJS, mapping providers, payment processors, cloud infrastructure) to provide its functionality. The availability and performance of XCviewer are subject to the terms and operational status of these third-party providers.
By using XCviewer, you agree that we may process your data as described in our Privacy Policy. This includes processing your flight data to provide our services and subscription information for billing purposes.
XCviewer uses third-party data and services, including but not limited to CesiumJS, Sentinel-2 satellite imagery, and other geospatial data providers.
When using our application, particularly for video export or sharing screenshots, you are required to:
These Terms are governed by the laws of Switzerland, without regard to its conflict of law provisions.
We may modify these Terms at any time. We will notify you of any material changes. By continuing to use XCviewer after changes are made, you agree to be bound by the revised Terms.