LEGAL
Threebrook Input License Agreement
Publisher: Zhuhai Threebrook Technology Co., Ltd. ("we") Contact: support@threebrook.com
Please read this agreement before installing or using Threebrook Input ("the software"). By installing or using the software, you agree to this agreement. If you don't agree, don't install or use it.
This English version is a translation for convenience. If it differs from the Chinese version, the Chinese version applies.
1. License
- We grant you a non-exclusive, non-transferable license to install and use the software on phones and tablets you use yourself.
- The software is free.
- We reserve all rights not expressly granted in this agreement. The open-source components listed in section 3 are provided under their own licenses, and this agreement doesn't limit your rights under those licenses.
2. Restrictions
You may not: (1) reverse engineer, decompile or disassemble the software except as permitted by law; (2) modify the software and release it under the name "Threebrook Input" or the Threebrook name or icon; (3) rent, lend or resell the software; (4) use the software for illegal purposes or to infringe the privacy, copyright or other lawful rights of others.
3. Open-source components and third-party content
The software includes the third-party components and data below. They are provided under their own licenses and copyright stays with their authors. The same list is on the software's About page.
| Component | Used for | License |
|---|---|---|
| Yuyan IME | The software is built on its code | BSD-3-Clause, Copyright (c) 2026, 王莹 |
| Rime input method engine | Pinyin and English input | BSD-3-Clause, Copyright (c) 2014, RIME Developers |
| sherpa-onnx | Offline speech recognition | Apache License 2.0 |
| SenseVoice voice model | Speech recognition model; not distributed with the software, you download and import it yourself | FunASR model license |
| FrequencyWords English word frequency list | English spelling correction | CC BY-SA 4.0, Hermit Dave, from OpenSubtitles 2018 |
| Handwriting recognition component | Handwriting input | A third-party component provided in binary form with the Yuyan IME project; rights belong to its rights holder |
The full texts of these open-source licenses are on the software's About › Open-source licenses page. We don't use the names of the original authors to endorse or promote the software without their written permission.
Some third-party components in the software are provided only in binary form, and we grant no additional rights to them. If a rights holder objects to the use of a component, we may replace or remove the related feature in a later version.
4. Privacy
The software doesn't request network permission. What you type, the words it learns and your voice are processed and stored only on your phone. See the Privacy Policy for details.
5. Updates
The software doesn't check for or download updates automatically. New versions are published at www.threebrook.com, and it's up to you whether to download and install them.
6. Disclaimer and limitation of liability
- The software is provided "as is". Candidate order, whole-sentence input, suggestions, English spelling correction and speech recognition are all generated automatically and may be wrong. Please check the entered text yourself before sending or submitting anything important.
- Learned words, clipboard history, phrases and other data are kept only on your phone. We have no copy, and they can't be recovered after uninstalling, switching phones or a factory reset.
- To the maximum extent permitted by applicable law, we are not liable for any indirect, incidental or consequential loss arising from the use of, or inability to use, the software.
7. Termination
If you breach this agreement, your license ends automatically and you must stop using and uninstall the software. Sections 3, 6 and 8 survive termination.
8. Governing law and disputes
This agreement is governed by the laws of the People's Republic of China (excluding its conflict-of-law rules). Disputes arising from this agreement should first be settled through friendly negotiation; failing that, they shall be submitted to the competent people's court where the publisher is located.