Unleash vs AB Tasty

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

Quote on request

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.

Quote-based annual contracts priced by traffic volume, now sold as part of the merged Wingify platform.

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

No free tier; demo on request.

Widely used

Unleash / Bricks Software · since 2014

Established

Wingify (VWO + AB Tasty) · since 2009

• 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.

• EU hosting and GDPR posture simplify European procurement.
• Good balance between marketer-friendly editing and server-side flags.
• Strong support reputation in European markets.

• 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.

• Less well known outside Europe, with a smaller partner ecosystem.
• Quote-based pricing with no self-serve entry.
• Statistics engine is less differentiated than the warehouse-native platforms.

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

European e-commerce and media companies with GDPR-driven vendor requirements.