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Keep Alive vs Oksigenia SOS: catalog facts
Keep Alive	Oksigenia SOS
Best for: People living alone who want someone alerted if they stop using their phone	Best for: Solo hikers and outdoor athletes who want an emergency alert without a cloud service
Free Free and open source under the Apache 2.0 licence.	Free Free and open source under the GPL-3.0 licence.
Android	Android
Works without any ongoing interaction after setup Uses plain SMS, so contacts need no special app All 4 strengths for Keep Alive Works without any ongoing interaction after setup Uses plain SMS, so contacts need no special app Can alert several people with a custom message Actively maintained	Alerts sent by SMS, no mobile data needed No account, cloud or Google services All 3 strengths for Oksigenia SOS Alerts sent by SMS, no mobile data needed No account, cloud or Google services Shares GPS coordinates automatically
Android only Depends on cellular SMS service being available All 3 limitations for Keep Alive Android only Depends on cellular SMS service being available Not a replacement for a dedicated medical alert service	Relies on SMS, so it needs some mobile signal Android only All 3 limitations for Oksigenia SOS Relies on SMS, so it needs some mobile signal Android only Small project with no packaged GitHub releases
Downloadable app	Downloadable app
Open source	Open source
License: Apache-2.0	License: GPL-3.0
No account needed	No account needed
Not stated if it works offline	Offline features available
Official website Full listing and sources Sources for Keep Alive github.com/keepalivedev/KeepAlive f-droid.org/packages/io.keepalive.android Catalog checked October 2, 2026	Official website Full listing and sources Sources for Oksigenia SOS github.com/OksigeniaSL/oksigenia-sos f-droid.org/packages/com.oksigenia.oksigenia_sos Catalog checked October 2, 2026

“Not stated” means we have not confirmed it. Features can vary by device and plan.