Abacus
A self-hosted Business, CRM & Commerce app you can run on your own server.
Abacus is a self-hosted business application that you run on your own server instead of renting it as a cloud service. It is a practical pick for homelab users and teams who prefer owning their tools over renting them.
Development happens in the open on GitHub; the repository has collected 850 stars so far. Repository activity was last recorded on Feb 9, 2026, and the project is classed as maintained in our snapshot. It is listed as a companion app — a tool that extends or helps you manage a self-hosted service rather than replacing it. It is available for Android, iOS.
Before you switch
Business software touches money and customer data, so run it in parallel with your current system for one full cycle before switching. Verify imports (contacts, products, invoices), user permissions, and backup exports. Most mature projects have active communities that have documented the migration path.
Like every project listed on SelfHosted, Abacus is developed in the open — you can read the code, follow development, and even contribute. Check the system requirements and the project’s own documentation linked on this page before installing.