GrowthBook vs Unleash

From $40 per seat/month (cloud Pro, up to 30 users and 3 projects)

From $75 per seat/month (Pay-As-You-Go, 5-seat minimum self-hosted)

Seat-based rather than usage-based, so cost tracks the number of people using the platform rather than your traffic — which is why it stays dramatically cheaper than the commercial platforms at scale, especially self-hosted.

Self-hosted open source is genuinely free within its project and environment caps. Pay-As-You-Go includes 53M API requests a month with $5 per additional million; Enterprise is an annual custom contract adding SSO, audit and change requests.

Self-hosted open source is free with unlimited users on 1 project; the cloud Starter tier is free for up to 3 users.

Open-source edition is free and self-hosted with no seat limit, but capped at 1 project, 2 environments and 5,000 flags.

Widely used

GrowthBook · since 2021

Widely used

Unleash / Bricks Software · since 2014

• Warehouse-native by design — no duplicate event pipeline and no data leaving your control.
• Self-hosting removes per-user-volume pricing entirely.
• Both Bayesian and frequentist engines with sequential testing support.

• Local evaluation means no user data leaves your infrastructure — a strong GDPR position.
• Mature, well-documented open-source core with no artificial crippling.
• Kubernetes and Terraform support for infrastructure-as-code workflows.

• Requires a working data warehouse and someone who can define metrics in SQL.
• Self-hosting is operational work you own.
• Less polished governance and approval tooling than LaunchDarkly.

• Experimentation and analytics are thin; it is a flag system first.
• Self-hosting means you own uptime for something in your request path.
• Smaller ecosystem than LaunchDarkly.

Data-mature teams that already have a warehouse and want to avoid volume-based pricing.

Privacy-sensitive or cost-sensitive teams that want flags without sending user data to a vendor.