Open source focus

Open Source Alternatives to Probook

3 open source Vertical SaaS options similar to Probook, ranked by named competitors first, sector overlap, and our 0-100 AI-readiness score. Every company listed publishes its source: each one carries an open source sector tag and a public GitHub repository.

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cal.com
Not rated
Open-source scheduling infrastructure for individuals, businesses, and developers.
Open source · Self-hostable
SuiteCRM
Not rated
Open-source Customer Relationship Management (CRM) application for businesses.
Open source · Self-hostable
Apache Airflow
Not rated
Open-source platform for programmatically authoring, scheduling, and monitoring data pipelines.
Open source · Self-hostable

Company	License	Founded	Rating	Reviews
cal.comOpen-source scheduling infrastructure for individuals, businesses, and developers.	Open source · Self-hostable	-	Not rated	-
SuiteCRMOpen-source Customer Relationship Management (CRM) application for businesses.	Open source · Self-hostable	-	Not rated	-
Apache AirflowOpen-source platform for programmatically authoring, scheduling, and monitoring data pipelines.	Open source · Self-hostable	-	Not rated	-