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OmniFocus vs Trayzero: catalog facts
OmniFocus	Trayzero
Paid One-time purchase or subscription, with a 14-day free trial.	Free Free and open source under the GPL 3.0.
macOS, iOS, Web	Android
Deep integration with Apple devices Quick capture to an Inbox from anywhere	Designed around the GTD workflow Capture button on every screen and capture from the share menu
Native apps only for Apple platforms Paid after the trial	Android only No mention of sync between devices
Downloadable app, Web application	Downloadable app
Closed source	Open source
License not stated	License: GPL-3.0-only
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked October 2, 2026

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