Acknowledgements
Last updated: September 25, 2026
About Tweaky
Tweaky is designed, developed and operated by LILYA LABS LTD.
Tweaky combines Lilya Labs' own software, processing workflow, tuning and application design with third-party software and models used under their respective licences.
Scope of these notices
This page lists third-party software and models that are distributed to you as part of the Tweaky iOS app, together with the copyright, licence and attribution information their licences require.
Tweaky's hosted processing service also uses open-source software and models, operated by Lilya Labs under their respective licences. Because these run on our servers and are not distributed to you, they are not individually listed here.
These notices relate solely to third-party licensing. They do not describe the architecture, implementation or processing methods used by Tweaky, and the inclusion of a notice does not imply that a component forms the whole or any particular functional part of Tweaky, or that its authors endorse Tweaky.
These notices are also available under Settings → Tweaky → Acknowledgements.
Third-party licence disclaimer
Third-party software identified on this page is provided by its authors under the licences reproduced or referenced below. Each licence contains its own warranty disclaimer and limitation of liability, which govern that software. Nothing on this page alters those licence terms.
Your use of Tweaky as a whole is governed by our Terms of Service (https://tweakyapp.com/terms). Nothing on this page limits any rights you have under applicable consumer protection law.
Nothing on this page grants any rights in Lilya Labs' software, technology, branding or other intellectual property.
Third-party software distributed with Tweaky
Firebase
Copyright Google LLC and contributors. Version 12.11.0.
Licensed under the Apache License, Version 2.0.
https://github.com/firebase/firebase-ios-sdk
Components included: Firebase Crashlytics, Firebase Core, Firebase Installations, Firebase Sessions.
Tweaky uses Firebase Crashlytics for crash reporting. Firebase Analytics is not included. See our Privacy Policy (
https://tweakyapp.com/privacy) for the data Crashlytics processes.
GoogleDataTransport
Copyright 2018-2026 Google LLC. Version 10.1.0. Apache License 2.0.
https://github.com/google/GoogleDataTransport
GoogleUtilities
Copyright 2018-2026 Google LLC. Version 8.1.0. Apache License 2.0.
https://github.com/google/GoogleUtilities
Promises (Google)
Copyright 2018-2026 Google LLC. Version 2.4.0. Apache License 2.0.
https://github.com/google/promises
nanopb
Copyright (c) 2011 Petteri Aimonen. Version 2.30910.0. zlib License.
https://github.com/nanopb/nanopb
SwiftTasksVision
Copyright (c) 2025 Pascal Burlet. Version 0.10.21. MIT License.
https://github.com/paescebu/SwiftTasksVision
MediaPipe Tasks Vision
Copyright Google LLC and contributors. Version 0.10.21. Apache License 2.0.
https://github.com/google-ai-edge/mediapipe
MediaPipe Face Landmarker model
The Face Landmarker model bundle (float16/1) is made available by Google under the Apache License, Version 2.0, as stated on its official model card.
https://developers.google.com/mediapipe/solutions/vision/face_landmarker
MediaPipe / TensorFlow Lite third-party components
The MediaPipe Tasks Vision binaries distributed with Tweaky include third-party components. Those confirmed in the production MediaPipe 0.10.21 binaries include:
* Abseil C++ (Apache 2.0) - Google LLC
* TensorFlow Lite (Apache 2.0) - Google LLC
* Protocol Buffers (BSD 3-Clause) - Google LLC
* XNNPACK (BSD 3-Clause) - Google LLC and Facebook, Inc.
* gemmlowp (Apache 2.0) - Google LLC
* ruy (Apache 2.0) - Google LLC
* cpuinfo (BSD 2-Clause) - Facebook, Inc. and Marat Dukhan
* pthreadpool (BSD 2-Clause) - Facebook, Inc. and Georgia Institute of Technology
* FP16 (MIT) - Marat Dukhan
* farmhash (MIT) - Google LLC
* glog (BSD 3-Clause) - Google LLC
* fft2d (Takuya Ooura licence) - Takuya Ooura
* OpenCV 4.5.3 (Apache 2.0) - OpenCV Foundation and contributors
* Eigen (Mozilla Public License 2.0) - Eigen authors
Full texts for Apache 2.0, MIT, BSD 2-Clause, BSD 3-Clause and zlib are reproduced below. The Mozilla Public License 2.0 is available at
https://www.mozilla.org/MPL/2.0/
Eigen
Eigen is Copyright © the Eigen authors and contributors.
Portions of Eigen distributed with Tweaky are licensed under the Mozilla Public License, Version 2.0 (MPL 2.0).
The corresponding source code for the unmodified Eigen components distributed with Tweaky is available here:
Source code:
https://gitlab.com/libeigen/eigen/-/tree/33d0937c6bdf5ec999939fb17f2a553183d14a74
MPL 2.0:
https://www.mozilla.org/MPL/2.0/
LILYA LABS LTD has not modified the applicable Eigen source code.
Face parsing (yakhyo / zllrunning)
Copyright (c) 2024 Yakhyokhuja Valikhujaev. Copyright (c) 2019 zllrunning.
The code and pretrained model weights are published by their authors under the MIT License.
https://github.com/yakhyo/face-parsing
https://github.com/zllrunning/face-parsing.PyTorch
Additional upstream notices
Certain third-party components distributed with Tweaky include additional attribution information supplied by their respective authors. The relevant notices from the dependency versions used by the production project are reproduced below without modification.
Firebase Crashlytics 12.11.0 - libunwind
The following copyright from Hewlett-Packard Development Company, L.P. applies to the dwarf.h file in third_party/libunwind.
libunwind - a platform-independent unwind library
Copyright (c) 2003-2005 Hewlett-Packard Development Company, L.P.
Contributed by David Mosberger-Tang <davidm@hpl.hp.com>
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE 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. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
GoogleUtilities 8.1.0 - IsAppEncrypted
Copyright (c) 2017 Landon J. Fuller <landon@landonf.org>
All rights reserved.
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE 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. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
MediaPipe 0.10.21 - Lucent Technologies utf
The following notice from the MediaPipe v0.10.21 LICENSE applies to files under tasks/cc/text/language_detector/custom_ops/utils/utf/.
The authors of this software are Rob Pike and Ken Thompson.
Copyright (c) 2002 by Lucent Technologies.
Permission to use, copy, modify, and distribute this software for any purpose without fee is hereby granted, provided that this entire notice is included in all copies of any software which is or includes a copy or modification of this software and in all copies of the supporting documentation for such software.
THIS SOFTWARE IS BEING PROVIDED "AS IS", WITHOUT ANY EXPRESS OR IMPLIED WARRANTY. IN PARTICULAR, NEITHER THE AUTHORS NOR LUCENT TECHNOLOGIES MAKE ANY REPRESENTATION OR WARRANTY OF ANY KIND CONCERNING THE MERCHANTABILITY OF THIS SOFTWARE OR ITS FITNESS FOR ANY PARTICULAR PURPOSE.
MediaPipe 0.10.21 / TensorFlow Lite - fft2d
The following notice from TensorFlow third_party/fft2d/LICENSE (commit 5329ec8dd396487982ef3e743f98c0195af39a6b, the TensorFlow revision used by MediaPipe v0.10.21) applies to the fft2d / Takuya Ooura FFT code included in the MediaPipe binaries distributed with Tweaky.
Copyright(C) 1997,2001 Takuya OOURA (email: ooura@kurims.kyoto-u.ac.jp).
You may use, copy, modify this code for any purpose and
without fee. You may distribute this ORIGINAL package.
Full license texts
The complete texts of the Apache License 2.0, MIT License, BSD 3-Clause License, BSD 2-Clause License and zlib License are reproduced once each below, rather than repeated under every component. The Mozilla Public License 2.0, which applies only to certain Eigen files, is referenced below together with the official publication URL.
Apache License 2.0
Apache License
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http://www.apache.org/licenses/
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Mozilla Public License 2.0
Mozilla Public License 2.0
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That licence applies to the covered Eigen files included in the MediaPipe
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