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CHRONOS vs Automate: catalog facts
CHRONOS	Automate
Free Free and open source under the GPL-3.0 or later.	Free Described by the developer as a free app.
Android	Android
Works alongside your existing SMS app Recipients from contacts or entered manually	Visual flowcharts are easier to follow than rule lists More than 400 building blocks
Young project started in 2026 Android only, SMS only	Android only Complex flows still need expressions and variables
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-3.0-or-later	License not stated
Not stated if an account is needed	Not stated if an account is needed
Not stated if it 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 September 23, 2026

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