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Primitive FTPd vs PlainApp: catalog facts
Primitive FTPd	PlainApp
Free Free and open source under the Apache 2.0 licence.	Free Free and open source under the AGPL-3.0 licence, with no ads or subscriptions.
Android	Android, Web
Supports both FTP and SFTP Works without root	No account or cloud; data stays on the local network Files, media, SMS, call logs and contacts in one browser interface
Prevents standby while running, which uses battery Needs a client on the other machine	Android phones only Browser access is limited to the same network
Downloadable app	Downloadable app
Open source	Open source
License: Apache-2.0	License: AGPL-3.0
No account needed	No account 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 2, 2026

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