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Privacy Friendly Pain Diary vs Migraine Log: catalog facts
Privacy Friendly Pain Diary	Migraine Log
Free Free and open source under the GPL-3.0 licence.	Free Free and open source under the GPL version 3 or later.
Android	Android, iOS
Records intensity, location, nature and timing of pain Tracks medication alongside symptoms	Logging an attack needs only a date and a strength No network access, so data stays on the device
Android only Focused narrowly on pain, not general health tracking	Focused only on headaches, not general health tracking No sync between devices
Downloadable app	Downloadable app
Open source	Open source
License: GPL-3.0	License: GPL-3.0-or-later
No account needed	No account needed
Not stated if it works offline	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.