Unleash vs VWO

From $80 per month (indicative, hosted Pro)

From $314 per month (indicative, growth tier by traffic)

Self-hosted open source is genuinely free; enterprise adds SSO, audit and change requests.

Priced by monthly tracked users across modules; buying testing plus insights raises the total substantially.

Open-source edition is free and self-hosted with no user limits.

Free starter plan with limited monthly tracked users.

Widely used

Unleash / Bricks Software · since 2014

Widely used

Wingify · since 2010

• 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.

• Observation and experimentation in one place shortens the hypothesis loop.
• Visual editor is capable and marketer-friendly.
• Cheaper than Optimizely at comparable traffic.

• 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.

• Module-based pricing means the useful configuration costs much more than the headline.
• Client-side flicker on complex single-page applications.
• Server-side capability lags the flag-first platforms.

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

Conversion-optimisation teams that want testing and behavioural insight from one vendor.