Which is cheaper, Cerbos or FusionAuth?

Cerbos is 1.5x cheaper than FusionAuth. Cerbos starts at $0/mo, FusionAuth starts at $0/mo.

Does Cerbos have a free tier?

Yes, Cerbos offers a free tier with .

Cerbos has moderate switching cost. FusionAuth has moderate switching cost. Both have similar switching complexity.

Auth

Cerbos

← More affordable

Policy-as-code authorization engine with YAML policies, audit logs, and managed PDP deployment

Switching Cost: moderate

FusionAuth

Full-featured auth platform with self-hosting option and MAU-based cloud pricing

Switching Cost: moderate

Price sensitivity favors Cerbos, which costs about 1.5x less than FusionAuth.

Cost modeling varies: flat-rate drives Cerbos pricing, while FusionAuth uses tiered.

Both tools have compelling strengths — choose Cerbos if you value policy-as-code, otherwise FusionAuth offers advantages in full-featured.

Both tools have compelling strengths — choose Cerbos if you value policy-as-code, otherwise FusionAuth offers advantages in full-featured.

Price Difference

1.5x

Cerbos is cheaper by $12/mo

Pricing Model

Different

Tools charge using different pricing philosophies