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Gibbon vs RosarioSIS: catalog facts
Gibbon	RosarioSIS
Free Free and open source under GPL-3.0.	Freemium Free under GPL-2.0, with optional premium add-ons.
Web, Self-hosted	Web, Self-hosted
One platform for teachers, students, parents and staff Extensible with modules and themes	Covers grades, attendance, scheduling and billing in one application Student and parent portal with online registration
Requires hosting PHP, Apache and MySQL yourself Covers whole-school management, which may be more than a single class needs	Requires running a PHP and database server Some add-ons are paid
Self-hosted	Self-hosted
Open source	Open source
License: GPL-3.0	License: GPL-2.0
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 October 2, 2026

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