Bitrix24 Open Source -

Time tracking, employee directories, and an eLearning module for internal training.

Lead tracking, sales pipelines, and automated marketing.

You can integrate Bitrix24 with any internal ERP, specialized accounting software, or legacy systems using the API and direct code adjustments. bitrix24 open source

You host the data on your own servers (or a private cloud), which is vital for industries like healthcare, finance, or government that have strict data privacy laws.

The on-premise version includes all the core Bitrix24 tools plus enterprise-specific modules: Time tracking, employee directories, and an eLearning module

Gantt charts, Kanban boards, and workload management.

A standard SaaS solution where the vendor handles hosting and updates. It is ready to use immediately but does not allow backend code modifications. You host the data on your own servers

While the upfront license fee is higher, the annual renewal is typically only 50% of the original price . This can be cheaper over many years compared to monthly per-user cloud subscriptions. Key Features Available in the Self-Hosted Version