Third-party notices
SimuSign is proprietary software. It includes and is built with the open-source software and reference datasets below — with thanks to their authors and communities. Each component is governed by its own license.
Software
three.js
MIT — © 2010–2025 Three.js Authors
@pixiv/three-vrm
MIT — © pixiv Inc.
@dimforge/rapier3d-compat
Apache-2.0 — © Dimforge EURL
Next.js
MIT — © Vercel, Inc.
React
MIT — © Meta Platforms, Inc.
Chakra UI
MIT — © Segun Adebayo
Emotion
MIT — © Emotion team
Framer Motion
MIT — © Framer B.V.
caniuse-lite
CC BY 4.0 — © Alexis Deveria (caniuse.com)
Nunito (typeface)
SIL Open Font License 1.1 — © The Nunito Project Authors
Fraunces (typeface)
SIL Open Font License 1.1 — © The Fraunces Project Authors
MIT- and Apache-licensed components retain their license and copyright notices in the shipped application bundle. The full SIL Open Font License text is available at openfontlicense.org.
Reference datasets & research tools
PopSign ASL v2.1
CC BY 4.0
Georgia Institute of Technology & Deaf Professional Arts Network (signdata.cc.gatech.edu). Used as machine-gating reference during sign development; no dataset content is included in this product.
MS-ASL (annotations)
C-UDA 0.1 — Microsoft
Computational-use reference during sign development; no dataset content is included in this product.
ASL Citizen baseline recognizer (code)
MIT — Microsoft
Used server-side as an automated evaluation aid.
The 3D avatar model is built in-house from CC0 (public-domain) MakeHuman community assets. Sign-language content — phonological sign data, translations, and grammar — is authored by SimuSign and its reviewers.