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PicGuard vs Squash: catalog facts
PicGuard	Squash
Freemium Free without ads; a paid Pro version adds font, size and spacing options.	Paid Paid app, with additional effect packs sold separately.
Android, Web	macOS
Images are processed locally and never uploaded Customizable watermark color and opacity	Batch resize, convert and compress in one step Removes or edits private metadata
Font and spacing options require the paid Pro version Focused on watermarking only, not general editing	macOS only Extra effect packs cost more
Downloadable app, Web application	Downloadable app
Open source	Closed source
License: GPL-3.0	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

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