Staxly

Flagsmith vs LaunchDarkly

Open-source feature flags + remote config — SaaS, private cloud, self-host
vs. Enterprise feature management, experimentation, release automation

Flagsmith websiteLaunchDarkly website

Pricing tiers

Flagsmith

Free
$0. 50,000 API requests/mo. 1 team member. Unlimited flags. Community support.
Free
Self-hosted
$0 (OSS). Host yourself via Docker/K8s. Fair-source license (non-compete).
$0 base (usage-based)
Start-up
$40/mo. 1,000,000 API requests/mo. 3 team members. Standard support.
$40/mo
Scale-up
$200/mo. 5,000,000 API requests. 10 team members. Priority support + SLA.
$200/mo
Enterprise
Custom. Unlimited API requests, SSO, SAML, RBAC, audit logs, on-prem.
Custom
Flagsmith website

LaunchDarkly

Developer (Free)
Free forever. Unlimited seats + flags + projects. 30 SDKs. 5K session replays/mo. 10M logs/traces.
Free
Foundation
$12/month per service connection + $10/month per 1K client-side MAU. Unlimited seats, experimentation, SSO.
$12/mo
Enterprise
Custom. Advanced targeting, release automation, workflows, approvals, SAML/SCIM, custom roles.
Custom
Guardian
Custom. All Enterprise + release monitoring, guardrail metrics, auto pause/rollback.
Custom
LaunchDarkly website

Free-tier quotas head-to-head

Comparing free on Flagsmith vs developer on LaunchDarkly.

MetricFlagsmithLaunchDarkly
No overlapping quota metrics for these tiers.

Features

Flagsmith · 14 features

  • A/B TestingMultivariate flag splits.
  • Audit LogFull history of flag changes.
  • Change RequestsApproval workflow for flag changes.
  • Edge APIGlobal low-latency flag eval.
  • Feature FlagsBoolean + multivariate + JSON flags.
  • Local EvaluationServer SDKs eval flags locally — no per-req API call.
  • Percentage RolloutsGradual traffic ramp.
  • Remote ConfigNon-boolean config values.
  • Role-Based AccessFine-grained permissions.
  • Scheduled FlagsTime-based flag changes.
  • SegmentsRule-based targeting.
  • Self-HostingDocker/Helm install.
  • SSO + SAMLEnterprise SSO.
  • WebhooksOutbound event streaming.

LaunchDarkly · 15 features

  • AI ConfigsManage AI prompts, models, and parameters as flags.
  • ApprovalsRequire co-sign before flag changes in prod.
  • Audit LogEvery change logged with user + timestamp.
  • Auto Pause/RollbackGuardrail metrics auto-revert a bad release.
  • Code ReferencesScan code for flag references + stale flag cleanup.
  • ContextsMulti-context targeting: user + organization + device in one evaluation.
  • ExperimentationA/B/n testing with stat significance. Bayesian + frequentist.
  • Feature FlagsBoolean, multivariate (string/number/JSON) flags with targeting rules.
  • ObservabilityLogs + traces + errors linked to flag changes.
  • Relay ProxySelf-hosted evaluation proxy for compliance / low-latency.
  • Release PipelinesProgressive rollout workflows with guards + approvals.
  • SAML / SCIMEnterprise SSO + SCIM provisioning.
  • Session ReplayFrontend session recordings tied to flag exposure.
  • Targeting RulesRule-based targeting on user attributes, country, device, custom contexts.
  • WorkflowsScheduled flag changes + conditional workflows.

Developer interfaces

KindFlagsmithLaunchDarkly
CLIFlagsmith CLILaunchDarkly Relay Proxy
SDKflagsmith-android, flagsmith-go, flagsmith-ios, flagsmith-java, flagsmith-js (browser), flagsmith-nodejs, flagsmith-python, flagsmith-rubygo-server-sdk, launchdarkly-android-client-sdk, launchdarkly-ios-client-sdk, launchdarkly-java-server-sdk, launchdarkly-js-client-sdk, launchdarkly-node-server-sdk, launchdarkly-react-client-sdk, launchdarkly-react-native-client-sdk, LaunchDarkly.ServerSdk, launchdarkly-server-sdk-python
RESTFlagsmith REST APILaunchDarkly REST API
OTHERFlagsmith Dashboard, Flagsmith WebhooksStreaming Flag Eval, Webhooks
Staxly is an independent catalog of developer platforms. Outbound links to Flagsmith and LaunchDarkly are plain references to their official websites. Pricing is verified against vendor pages at publication time — reconfirm before buying.

Want this comparison in your AI agent's context? Install the free Staxly MCP server.