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AlterSend vs PrivyDrop: catalog facts
AlterSend	PrivyDrop
Free The client is open source under Apache-2.0; no paid tier is mentioned on the homepage.	Free Free to use and open source under the MIT licence.
Windows, macOS, Linux, Android, iOS, Web	Web, Self-hosted
Files go device to device with no copy left on a server Recipients can download from a browser link without installing anything	Direct browser-to-browser transfers with no account No file size or speed limits
Both devices must be online at the same time for a direct transfer Transfer speed depends on the sender's own connection	Unlimited size and resume depend on Chrome's direct-to-disk feature Interrupted transfers need both pages refreshed to restart
Downloadable app, Web application	Web application, Self-hosted
Open source	Open source
License: Apache-2.0	License: MIT
No account needed	No account needed
Not stated if it works offline	Needs internet
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.