Uncursive Acknowledgements
For Uncursive 1.0
Published at https://uncursive.com/acknowledgements
Uncursive is built on open-source software and reads handwriting with open-weights models. Each component below is the work of its authors and comes to you under its own license, reproduced here; that license governs the component, as section 8 of the license agreement says. None of these authors is affiliated with Uncursive or endorses it.
1. Reading models
The on-device models the app downloads once you choose one.
- Qwen3.5-4B — the Qwen team, Alibaba Cloud, https://huggingface.co/Qwen/Qwen3.5-4B; shipped as a 4-bit MLX build. Apache License 2.0.
- Qwen3.5-2B — the Qwen team, Alibaba Cloud, https://huggingface.co/Qwen/Qwen3.5-2B; shipped as the mlx-community's 4-bit MLX build, https://huggingface.co/mlx-community/Qwen3.5-2B-4bit. Apache License 2.0.
2. Software
The packages compiled into the app, with the version this page was built from and the parts of each that the app carries.
- MLX Swift 0.31.6 — ml-explore (Apple), https://github.com/ml-explore/mlx-swift. MIT License. In the app: MLX, MLXNN, MLXOptimizers, and the MLX core in C++. It carries these components under their own licenses:
- MLX — Apple Inc. MIT License.
- mlx-c — ml-explore (Apple). MIT License.
- metal-cpp — Apple Inc. Apache License 2.0.
- {fmt} — Victor Zverovich and {fmt} contributors. MIT License.
- JSON for Modern C++ — Niels Lohmann. MIT License.
- MLX Swift LM revision 8cc16aa960 — ml-explore (Apple); Uncursive ships a fork at github.com/kustra/mlx-swift-lm, https://github.com/ml-explore/mlx-swift-lm. MIT License. In the app: MLXLMCommon, MLXVLM.
- swift-transformers 1.3.3 — Hugging Face, https://github.com/huggingface/swift-transformers. Apache License 2.0. In the app: Tokenizers, Hub.
- swift-huggingface 0.9.0 — Hugging Face, https://github.com/huggingface/swift-huggingface. Apache License 2.0. In the app: HuggingFace.
- swift-jinja 2.4.2 — Hugging Face, https://github.com/huggingface/swift-jinja. Apache License 2.0. In the app: Jinja.
- EventSource 1.4.2 — Mattt, https://github.com/mattt/EventSource. MIT License. In the app: EventSource.
- yyjson 0.12.0 — YaoYuan, https://github.com/ibireme/yyjson. MIT License. In the app: yyjson (C).
- Swift Atomics 1.3.1 — Apple Inc. and the Swift project authors, https://github.com/apple/swift-atomics. Apache License 2.0. In the app: Atomics.
- Swift Collections 1.6.0 — Apple Inc. and the Swift project authors, https://github.com/apple/swift-collections. Apache License 2.0. In the app: DequeModule, OrderedCollections, ContainersPreview.
- Swift Numerics 1.1.1 — Apple Inc. and the Swift project authors, https://github.com/apple/swift-numerics. Apache License 2.0. In the app: RealModule, ComplexModule.
- SwiftNIO 2.101.3 — the SwiftNIO project (Apple), https://github.com/apple/swift-nio. Apache License 2.0. In the app: NIOCore, NIOConcurrencyHelpers.
- Swift Crypto 4.5.1 — the SwiftCrypto project (Apple), https://github.com/apple/swift-crypto. Apache License 2.0. In the app: Crypto.
3. License texts
3.1 MIT License
These components are licensed under the MIT License, each under its own copyright notice, which the license asks to be kept with it:
- MLX Swift: Copyright (c) 2023 ml-explore
- MLX: Copyright © 2023 Apple Inc.
- mlx-c: Copyright (c) 2023 ml-explore
- {fmt}: Copyright (c) 2012 - present, Victor Zverovich and {fmt} contributors
- JSON for Modern C++: Copyright (c) 2013-2022 Niels Lohmann
- MLX Swift LM: Copyright (c) 2024 ml-explore
- EventSource: Copyright 2025 Mattt (https://mat.tt)
- yyjson: Copyright (c) 2020 YaoYuan <ibireme@gmail.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.
3.2 Apache License 2.0
These components are licensed under the Apache License, Version 2.0: metal-cpp, swift-transformers, swift-huggingface, swift-jinja, Swift Atomics, Swift Collections, Swift Numerics, SwiftNIO, Swift Crypto, and the reading models above.
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SwiftNIO
The SwiftNIO Project
====================
Please visit the SwiftNIO web site for more information:
* https://github.com/apple/swift-nio
Copyright 2017, 2018 The SwiftNIO Project
The SwiftNIO Project licenses this file to you under the Apache License,
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-------------------------------------------------------------------------------
This product is heavily influenced by Netty.
* LICENSE (Apache License 2.0):
* https://github.com/netty/netty/blob/4.1/LICENSE.txt
* HOMEPAGE:
* https://netty.io
---
This product contains NodeJS's llhttp.
* LICENSE (MIT):
* https://github.com/nodejs/llhttp/blob/1e1c5b43326494e97cf8244ff57475eb72a1b62c/LICENSE-MIT
* HOMEPAGE:
* https://github.com/nodejs/llhttp
---
This product contains "cpp_magic.h" from Thomas Nixon & Jonathan Heathcote's uSHET
* LICENSE (MIT):
* https://github.com/18sg/uSHET/blob/c09e0acafd86720efe42dc15c63e0cc228244c32/lib/cpp_magic.h
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* https://github.com/18sg/uSHET
---
This product contains "sha1.c" and "sha1.h" from FreeBSD (Copyright (C) 1995, 1996, 1997, and 1998 WIDE Project)
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---
This product contains a derivation of Fabian Fett's 'Base64.swift'.
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---
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---
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---
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Swift Crypto
The SwiftCrypto Project
=======================
Please visit the SwiftCrypto web site for more information:
* https://github.com/apple/swift-crypto
Copyright 2019 The SwiftCrypto Project
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-------------------------------------------------------------------------------
This product contains test vectors from Google's wycheproof project.
* LICENSE (Apache License 2.0):
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---
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