Open-source licenses

Each bundled or linked component below remains governed by its own license; those entries satisfy the attribution and source-availability requirements those licenses place on us as a distributor. The service entries identify online providers named in our legal pages. The same catalogue is available in the app under Settings → About.

FFmpeg is bundled as a separate, independently executed program under the GPL-3.0-or-later license. Quven bundles a vanilla GPL build of FFmpeg. The complete corresponding source code is available under the same license at https://ffmpeg.org/download.html.

Bundled components

• AsyncImageLoader.Avalonia MIT
  https://github.com/AvaloniaCommunity/AsyncImageLoader.Avalonia
• Avalonia MIT
  https://avaloniaui.net/
• CliWrap MIT
  https://github.com/Tyrrrz/CliWrap
• CommunityToolkit.Mvvm MIT
  https://github.com/CommunityToolkit/dotnet
• Entity Framework Core MIT
  https://github.com/dotnet/efcore
• F23.StringSimilarity MIT
  https://github.com/feature23/StringSimilarity.NET
• FFmpeg GPL-3.0-or-later
  https://ffmpeg.org/
• LibVLC LGPL-2.1-or-later
  https://www.videolan.org/vlc/libvlc.html

  Quven links LibVLC dynamically via LibVLCSharp.Avalonia. The bundled, unmodified LibVLC binary may be replaced by the user with a compatible version.

• LibVLCSharp.Avalonia LGPL-2.1-or-later
  https://code.videolan.org/videolan/LibVLCSharp
• Makaretu.Dns.Multicast.New MIT
  https://github.com/iadepre/net-dns
• Mapperly Apache-2.0
  https://github.com/riok/mapperly
• Material.Icons.Avalonia MIT
  https://github.com/SKProCH/Material.Icons.Avalonia
• Microsoft.Extensions.Http.Resilience MIT
  https://github.com/dotnet/extensions
• Polly BSD-3-Clause
  https://github.com/App-vNext/Polly
• Quickenshtein MIT
  https://github.com/Turnerj/Quickenshtein
• Serilog Apache-2.0
  https://serilog.net/
• SkiaSharp MIT
  https://github.com/mono/SkiaSharp
• SQLite Public Domain
  https://www.sqlite.org/copyright.html
• System.Reactive MIT
  https://github.com/dotnet/reactive
• TMDbLib MIT
  https://github.com/jellyfin/TMDbLib

Third-party online services

These services are contacted only when the related feature is configured, enabled or requested. Their availability is not guaranteed by us and each is governed by its own terms.

• Cloudflare Service API
  https://www.cloudflare.com/

  Quven uses Cloudflare for content delivery and protection, managed TURN relay, and transactional email where those features are configured.

• Configurable AI provider Service API
  https://www.deepseek.com/

  AI disambiguation calls use the configured OpenAI-compatible provider API under the operator's account; DeepSeek is the default provider.

• JustWatch Streaming availability data via TMDb
  https://www.justwatch.com/

  Streaming availability data is licensed to TMDb by JustWatch and is shown for information only.

• OMDb Service API
  https://www.omdbapi.com/

  External rating lookups use the OMDb API under the operator's API key.

• OpenSubtitles Service API
  https://www.opensubtitles.com/

  Subtitle search and acquisition can contact OpenSubtitles under the operator's API key.

• Sentry Service API
  https://sentry.io/

  Opt-in diagnostics and crash reporting use Sentry when diagnostics are enabled.

• Stripe Service API
  https://stripe.com/

  Stripe processes payments only when paid plans begin.

• TMDb Service API (free, with attribution)
  https://www.themoviedb.org/

  This product uses the TMDb API but is not endorsed or certified by TMDb.

Quven's own source code is proprietary and provided under the End User License Agreement. See also our Terms & Conditions and Privacy Policy.