VWO vs Flagsmith

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

From $45 per month (indicative, Start-up plan)

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

Considerably cheaper than LaunchDarkly, and self-hosting removes usage pricing entirely.

Free starter plan with limited monthly tracked users.

Free cloud tier with a monthly request allowance; open-source self-hosting is unlimited.

Widely used

Wingify · since 2010

Established

Flagsmith · since 2018

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

• Genuinely easy self-hosting with a Docker image and Helm chart.
• Simple, comprehensible pricing.
• Remote config alongside flags, which covers a lot of mobile use cases.

• 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.

• Experimentation features are basic.
• Smaller company and community than the leaders.
• Fewer governance controls for large organisations.

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

Teams wanting straightforward flags without LaunchDarkly pricing or Unleash's operational depth.