Split vs Flagsmith

Free tier available

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

Paid tiers are quote-based, priced by monthly tracked keys.

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

Free tier with limited monthly tracked keys.

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

Established

Harness · since 2015

Established

Flagsmith · since 2018

• Automatic metric impact on every flag catches regressions nobody thought to measure.
• Guardrail alerts stop a bad rollout before it reaches everyone.
• Strong data-platform integrations.

• 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.

• Post-acquisition roadmap now sits inside Harness's broader platform strategy.
• Requires meaningful event instrumentation before the impact analysis is useful.
• Opaque enterprise pricing.

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

Teams that want every release measured, not just deliberate experiments.

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