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Open-source licenses.

Ompera's apps are built with the software, models and media below. Each keeps its own license, and you may use it under that license. Ompera's own code, design and texts are not open source; see the Terms.

Android appsEvery license and notice, offline: Settings → Open-source licenses in Ompera and in Ompera Bench.
Desktop appAbout this computer → Open-source licenses, and THIRD_PARTY_NOTICES.txt inside the app.
Extension and websiteOmpera's own code only, with no third-party code inside.

Engines that run models

In the Ompera Android app and Ompera Bench; parts marked Bench are in Ompera Bench only.

Component	What it does	License
llama.cpp and ggml, built from source at commit 1d971bb, with cpp-httplib and JSON for Modern C++	Runs GGUF models on the CPU	MIT · source
LiteRT-LM 0.18.0, Google AI Edge, with the libraries its third-party notice lists (TensorFlow Lite, XNNPACK, Abseil, SentencePiece and others)	Runs LiteRT models on the CPU and GPU	Apache-2.0 · source
GenieX 0.3.17, Qualcomm, with its own build of llama.cpp	Runs NPU models on supported Snapdragon chips	BSD-3-Clause · source and notice
Qualcomm AI Runtime (QAIRT) 2.45 libraries, inside GenieX	The Snapdragon NPU runtime	Qualcomm AI Stack License: proprietary, shipped in object code with Qualcomm's permission. It may not be reverse engineered, and its use limits and export rules are in the Terms. Qualcomm's notices for the software inside it are in the app.
ExecuTorch 1.5.1, PyTorch, with XNNPACK, cpuinfo, pthreadpool, FXdiv, FP16, PyTorch tokenizers, SentencePiece, Darts-clone, Protocol Buffers, PCRE2, Abseil and JSON for Modern C++; Bench	Runs ExecuTorch models on the CPU	BSD-3-Clause; its parts under BSD, MIT and Apache-2.0 · source
MNN 3.6.1, Alibaba, with FlatBuffers, KleidiAI, cpuinfo, FP16, half, RapidJSON and cpp-httplib; Bench	Runs MNN models on the CPU and, through OpenCL, the GPU	Apache-2.0; half, RapidJSON, FP16 and cpp-httplib: MIT; cpuinfo: BSD-2-Clause · source
ONNX Runtime 1.21.1, Microsoft	Runs the text embeddings service	MIT · third-party notices

Speech, text and translation

Component	What it does	License
whisper-android 1.0.0, with whisper.cpp, ggml and miniaudio	Speech to text	MIT · source
Tesseract4Android 4.9.0, with Tesseract, Leptonica, libpng and the Independent JPEG Group's libjpeg 9f	Text from images	Apache-2.0; Leptonica: BSD-2-Clause style; libpng: PNG Reference Library License; libjpeg: IJG license. This software is based in part on the work of the Independent JPEG Group. · source
ML Kit Translation 17.0.3 and Language ID 17.0.6, Google	Translation	ML Kit Terms of Service; it may not be reverse engineered. It sends Google performance metrics, not text: see Privacy.

Libraries

Component	What it does	License
AndroidX: activity, appcompat, camera, core, fragment, lifecycle and the libraries they use	Screens, camera and app life cycle	Apache-2.0
Kotlin standard library, kotlinx.coroutines 1.11.0, kotlinx.serialization 1.6.3	The language and its libraries	Apache-2.0
OkHttp 4.12.0 and Okio 3.6.0	Connections to Ompera and model downloads	Apache-2.0
Public Suffix List, Mozilla, inside OkHttp, unmodified	Recognises internet domains	MPL-2.0 · source
ZXing core 3.5.4, with code from Barcode4J	Reading the QR code that connects a phone	Apache-2.0
Gson, Guava ListenableFuture, AutoValue and Error Prone annotations, JetBrains annotations, JSpecify, javax.inject	Used by the libraries above	Apache-2.0
fbjni 0.7.0 and SoLoader nativeloader 0.10.5, Meta; Bench	Used by ExecuTorch	Apache-2.0
Firebase components and encoders, Google data transport	Used by ML Kit	Apache-2.0; Google's notices for what is inside are in the app
Google Play services base, basement and tasks	Used by ML Kit	Android Software Development Kit License
LLVM libc++ and OpenMP runtime, from the Android NDK	C++ and parallel code of the engines	Apache-2.0 with LLVM Exception

Desktop app

Component	What it does	License
Tauri 2 and 367 Rust crates for macOS, Linux and Windows, with the Rust standard library	The app window, its system integration and the Agent's control	MIT, Apache-2.0, BSD, ISC, Zlib and Unicode-3.0, each listed with its text in the app
cssparser, selectors, dtoa-short and option-ext crates, unmodified	Used by the window toolkit	MPL-2.0 · source on crates.io
@tauri-apps/api and plugin-opener	The app's JavaScript bridge	MIT or Apache-2.0
Go standard library, coder/websocket and golang.org/x/sys, inside the Ompera Agent	The Agent that runs and shares the model	BSD-3-Clause and ISC
llama.cpp engine	Runs the model; the app downloads it from the ggml-org releases on GitHub	MIT; not part of the app

Models you can download

The apps download these from their publishers when you choose them; they are not part of the app.

Model	Files from	License
Qwen3 1.7B and Qwen3 4B Instruct 2507, Qwen	Unsloth (GGUF), LiteRT Community (LiteRT), Software Mansion (ExecuTorch) and the MNN team (MNN) for Ompera Bench	Apache-2.0
Qwen3 4B Instruct 2507 for the Snapdragon NPU	Qualcomm AI Hub	Apache-2.0, with Qualcomm's generative AI usage terms (in the Terms)
Gemma 4 E2B and E4B, Google	LiteRT Community	Apache-2.0
EmbeddingGemma 2, Google	LiteRT Community	Apache-2.0
all-MiniLM-L6-v2, sentence-transformers	Hugging Face	Apache-2.0
Whisper base, OpenAI, in whisper.cpp format	ggerganov/whisper.cpp	MIT
Tesseract fast data, Ukrainian and English	tesseract-ocr/tessdata_fast	Apache-2.0
ML Kit translation models	Google	ML Kit Terms of Service
Qwen3.5 4B and 9B, Qwen3.6 35B-A3B, Qwen3.8 27B, Qwen; desktop app	LM Studio Community and ggml-org (GGUF)	Apache-2.0
GPT-OSS 20B, OpenAI; desktop app	ggml-org (GGUF)	Apache-2.0 and OpenAI's usage policy: comply with the law
stories15M test model, Andrej Karpathy; desktop app's engine test	ggml-org/tiny-llamas	MIT

Test media inside the Android app

Fox cubs playing in an English garden by Alexis Markwick (Dr-Mx), CC0 1.0.
Apollo 13 radio exchange by NASA, public domain as a work of the United States federal government. NASA does not endorse Ompera.

License texts

Apache License 2.0

The full text is at apache.org/licenses/LICENSE-2.0; it is also in each app under Open-source licenses. It lets you use, change and share the software, also in closed products, if you keep its copyright and license notices and say what you changed.

MIT License · llama.cpp and ggml

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.

MIT License · whisper-android and whisper.cpp

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

MIT License · ONNX Runtime

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

BSD License · ExecuTorch

For "ExecuTorch" software. Copyright (c) Meta Platforms, Inc. and affiliates. Copyright 2023 Arm Limited and/or its affiliates. Copyright (c) Qualcomm Innovation Center, Inc. Copyright (c) 2023 Apple Inc. Copyright (c) 2024 MediaTek Inc. Copyright 2023 NXP. Copyright (c) 2025 Samsung Electronics Co. LTD. Copyright (c) Intel Corporation.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
Neither the name Meta nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR 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.

MIT License · half and RapidJSON, inside MNN

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

BSD 3-Clause License · GenieX

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.