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Leech vs Progressive Downloader: catalog facts
Leech	Progressive Downloader
Paid A $6 license that stays valid forever and includes at least one year of updates, with a…	Free Free from the official site; a Mac App Store version costs 4.99 to support the developer.
macOS	macOS, Browser extension
Multi-stream accelerated downloads on supporting servers Bandwidth throttling and scheduled downloads	Multi-threaded downloads with mirror search Built-in FTP, SFTP and WebDAV browser
macOS only Acceleration depends on server support	macOS only Current version requires macOS 13 or newer
Downloadable app	Downloadable app, Browser extension
Closed source	Closed source
License not stated	License not stated
No account needed	No account needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 23, 2026

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