CC-CEDICT
PinyinIQ includes the CC-CEDICT Chinese-English dictionary published by MDBG under the Creative Commons Attribution-ShareAlike 4.0 International licence. The bundled dictionary retains its publisher, copyright, version and licence header.
ZIPFoundation
ZIPFoundation is copyright 2017-2025 Thomas Zoechling and is redistributed under the MIT License. The complete MIT text is bundled in the app.
Support-site software
This support site redistributes React, React DOM, React Server Components and Vinext runtime code. Their complete bundled licence and copyright notices are included in the distributed Third-Party Notices file. Build-only tooling remains recorded in the locked software inventory and is not described as redistributed runtime code.
Fonts
The site uses Geist under the SIL Open Font License 1.1 and Noto Serif Simplified Chinese under the SIL Open Font License 1.1. Font files are served from the same origin, and both complete licence texts are included in the Third-Party Notices file.
No affiliation
PinyinIQ is independently designed and is not affiliated with Pleco, MDBG, Apple or any dictionary publisher.