VRS X END USER LICENSE AGREEMENT
Copyright (C) 2026 ADS-B.Pro - Bruno Stelmaszyk
All rights reserved.
IMPORTANT: READ CAREFULLY BEFORE USING THIS SOFTWARE.
1. DEFINITIONS
"Software" refers to VRS X, including all executable files, libraries,
documentation, and embedded web interface components.
"VRS X", "VRSX", and "VRS-X" are proprietary names and marks used by ADS-B.Pro.
2. GRANT OF LICENSE
This software is provided as FREEWARE for personal and commercial use.
You are granted a non-exclusive, non-transferable license to use the
Software free of charge, subject to the following conditions.
3. RESTRICTIONS
You may NOT:
a) Modify, alter, adapt, or create derivative works of the Software,
including but not limited to the source code, binaries, or web
interface components.
b) Reverse engineer, decompile, disassemble, or attempt to derive the
source code of the Software, except to the extent expressly permitted
by applicable mandatory law.
c) Remove, alter, obscure, disable, or circumvent any copyright notices,
author attributions, proprietary markings, or VRS X branding provided
by the Software. Where custom branding is enabled through functionality
provided by VRS X, all mandatory VRS X and ADS-B.Pro attribution elements
displayed by the Software, including any "Powered by VRS X" attribution,
must remain visible and unmodified.
d) Use the names "VRS X", "VRSX", "VRS-X", or any confusingly similar
names in connection with any other software or product without
prior written permission.
e) Redistribute modified versions of the Software.
f) Sublicense, sell, rent, lease, or otherwise transfer rights to
the Software.
4. PERMITTED USES
You MAY:
a) Use the Software for personal, educational, or commercial purposes.
Commercial use may include deploying or operating VRS X as part of a
commercial service, customer installation, monitoring environment, or
professional solution. This permission does not grant the right to sell,
sublicense, rent, lease, or charge a separate license fee for VRS X itself.
b) Make copies of the Software for backup purposes.
c) Redistribute the Software in its original, unmodified form,
provided that this license agreement and all copyright, attribution,
and proprietary notices are included. Redistribution does not transfer
the distributor's license; each recipient receives the right to use
VRS X directly under the terms of this agreement.
5. DISCLAIMER OF WARRANTY
THIS SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND,
EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NONINFRINGEMENT.
THE AUTHOR MAKES NO GUARANTEES REGARDING THE ACCURACY, RELIABILITY,
OR COMPLETENESS OF THE DATA DISPLAYED BY THE SOFTWARE.
6. LIMITATION OF LIABILITY
IN NO EVENT SHALL ADS-B.PRO, BRUNO STELMASZYK, OR ANY CONTRIBUTORS
BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY,
OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
7. TERMINATION
This license is effective until terminated. Your rights under this
license will terminate automatically without notice if you fail to
comply with any of its terms. Upon termination, you must destroy all
copies of the Software in your possession.
8. THIRD-PARTY CODE
This Software contains code derived from Virtual Radar Server by
Andrew Whewell, licensed under the BSD 3-Clause license. The original
copyright notice, conditions, and disclaimer are provided in the
BSD 3-Clause License section below. Nothing in this agreement
restricts any rights granted to you under the BSD 3-Clause license
with respect to the original Virtual Radar Server source code, which
remains freely available from its original author.
9. GOVERNING LAW
This agreement shall be governed by and construed in accordance with
the laws of the Republic of Poland.
By using VRS X, you acknowledge that you have read this agreement,
understand it, and agree to be bound by its terms and conditions.