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Fossify Contacts vs Cardhop: catalog facts
Fossify Contacts	Cardhop
Free Free and open source under the GPL-3.0 licence.	Freemium Free to start, with paid features from Flexibits.
Android	macOS, iOS
No ads, tracking libraries or unnecessary permissions Groups and favorites with batch email or SMS to a group	Natural language input for adding and editing contacts Quick access from the menu bar
Android only Focused on local contact management rather than its own sync service	Apple platforms only Full features require payment
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-3.0	License not stated
No account needed	Not stated if an account is needed
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 1, 2026

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