# App Store Distribution Exception

VibeSDR is licensed under the **GNU General Public License, version 3** (see
[`LICENSE`](LICENSE)). The author and sole copyright holder, **Stuart Carr**,
grants the following additional permission under section 7 of the GPLv3.

## Additional permission

As an exception to the terms of the GNU GPL version 3, you have permission to
convey ("distribute") the Program through the **Apple App Store**, the **Apple
TestFlight** service, and **Google Play**, and to accept the standard usage terms
and conditions imposed by Apple Inc. and Google LLC on applications distributed
through those services, **notwithstanding** any term of the GPL (including, but
not limited to, the device- and account-based usage limits, the prohibition on
redistribution of the store binary, and the digital-rights-management measures
applied by those stores) that would otherwise conflict with such distribution.

This additional permission applies **only** to the official binaries signed and
submitted by the copyright holder. It does not restrict any of the rights granted
to you by the GPLv3 in the source code itself: the complete corresponding source
for every released binary is, and will remain, publicly available at
<https://github.com/Stuey3D/VibeSDR>, and you remain free to copy, modify, and
redistribute that source under the terms of the GPLv3.

If you modify VibeSDR and distribute your modified version, you may keep or remove
this additional permission at your option (GPLv3 §7 allows downstream removal of
additional permissions).

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*Why this exists:* the Free Software Foundation considers the standard Apple App
Store terms to conflict with the GPL. As the sole copyright holder, the author
issues this explicit additional permission so the official build can be offered on
the App Store while the project remains free software under the GPLv3.