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A free, open-source church management and relationship platform trusted by many of the largest churches in the country.
Our verdict
Rock RMS is unlike anything else on this list. It is a full, enterprise-grade relationship management system for churches, and it is completely free and open source, with no license fees and no per-seat cost. Large, tech-capable churches use it to run everything from workflows and communications to check-in, giving, groups, and deeply custom data, and they can modify the software itself because the source code is open.
That power is the whole story, and so is the catch. Rock is not a plug-and-play SaaS product. It typically needs to be hosted (either self-hosted or through a partner like Rock Cloud), configured, and often customized by someone with real technical skill. Churches that invest in that setup get a platform with almost unlimited ceiling; churches that expect to sign up and go on Sunday will be overwhelmed.
The community and documentation are strong, and the project suggests a voluntary donation of about $4.45 per weekly attendee per year to sustain development, but nothing is required. If you have (or can hire) technical capacity, Rock offers a level of control and customization that paid platforms simply cannot match, at a price no one can beat. If you do not, one of the turnkey systems will serve you far better.
How we scored it
Standout features
Open source
Full source code you can extend and customize freely.
Workflow engine
Automate follow-up, assimilation, and internal processes.
Communications
Email and SMS campaigns tied to your member data.
Check-in & groups
Enterprise check-in, attendance, and group management.
Giving
Integrated online and recurring donation tools.
No license fees
Free to use; optional donation supports development.
Pros & cons
✓ Pros
- Completely free and open source, with no license or per-seat fees
- Extraordinarily powerful and customizable down to the source code
- Enterprise-grade tools for workflows, communications, giving, and check-in
- Strong, active community with deep documentation
- Ideal for large, tech-capable, multi-site churches
– Cons
- Requires real technical skill to host, configure, and maintain
- Steep learning curve that overwhelms non-technical teams
- Support is community-based rather than a paid help desk
Best for
Large, technically capable churches that want maximum control and customization, and have staff or partners who can host and configure the platform.
Look elsewhere if
You're a small church without technical staff, you want turnkey setup and a paid support line, or you need to be up and running this week without a project.
Pricing
How it compares
| Rock RMS | Church Center | ChurchTrac | Subsplash | |
|---|---|---|---|---|
| Our score | 7.9 | 8.8 | 7.8 | 7.6 |
| Cost / value | 9.5 | 8.0 | 9.0 | 6.0 |
| Customizability | 9.5 | 7.0 | 6.5 | 6.0 |
| Ease of use | 6.0 | 9.0 | 8.0 | 7.5 |
| Feature depth | 9.5 | 9.0 | 8.0 | 8.0 |
FAQ
Is Rock RMS really free?
Yes. Rock RMS is free and open source with no license or per-seat fees. Churches only pay for hosting and any optional customization, plus a suggested voluntary donation.
Do we need a developer?
Effectively, yes. Rock is powerful but technical, so most churches need someone with development or IT skill to host, configure, and maintain it.
How is it hosted?
You can self-host Rock on your own server or use a hosting partner such as Rock Cloud, which bundles infrastructure into a monthly fee.
What kind of support is available?
Support is primarily community-driven through forums and documentation, with paid help available from third-party partners rather than an official help desk.
Who is Rock RMS best for?
Large, tech-capable, often multi-site churches that want deep customization and control and have the staff or partners to run an open-source platform.
