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Maxthon vs Dia: catalog facts
Maxthon	Dia
Free Free to download and use. The software is closed source.	Freemium A free tier is available. Heavier use requires a paid plan.
Windows, macOS	macOS
It carries its own notes tool, password manager and multi-model AI chat inside the browser, plus sync across…	Assistant reads your open tabs, so questions do not need copy and paste
The browser is closed source, its owner is based in China, and past versions had a poor record…	macOS only and requires an account The assistant sends page content to a remote service, which has privacy implications
Downloadable app	Downloadable app
Closed source	Closed source
License not stated	License not stated
Not stated if an account is needed	Account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 22, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.