9 Best LaunchDarkly Alternatives for Feature Flags

The quick answer

Quick answer: if you want flags and experiments with a generous free tier, Statsig (free up to 2M events, Pro $150 a month) and GrowthBook (free for up to 3 users, Pro $40 per seat a month) are the closest LaunchDarkly alternatives. PostHog is the pick if you also want analytics and replay, with 1M flag requests free a month. For a bill that does not grow with traffic, Unleash charges $75 per seat a month with unlimited MAU, and ConfigCat has flat plans from $110 a month billed annually. Flagsmith and Flipt suit teams that want open source and self-hosting, DevCycle has a free tier up to 1,000 client-side MAUs, and Datadog Feature Flags fit teams already on Datadog. Prices are as of October 2026, checked on each vendor's own site.

LaunchDarkly today, and why teams look elsewhere

LaunchDarkly now sells two products, CodeControl for feature flags and AgentControl for AI agents, alongside experimentation and observability. Its plans as of October 2026:

• Developer: $0 a month with unlimited seats and flags, 5 service connections, 1K client-side MAU, 100K experimentation MAU, and 1 project with 3 environments.
• Foundation: a 14-day trial, then pay as you go at $10 per service connection a month (one server-side SDK connected to one environment) and $8.33 per 1,000 client-side MAU a month, billed yearly. The first 5 service connections are included, and Kubernetes, serverless, Python and Ruby setups get custom rates.
• Enterprise: custom pricing, with Guardian (release monitoring and automatic rollback) as a separately priced add-on.

Teams usually look elsewhere for three reasons. The bill moves with both the number of server-side connections and client-side traffic, which can be hard to forecast as you scale. Flag scheduling, approval workflows, custom roles, audit logging and code references are Enterprise features. And the platform now spans flags, experiments, observability and AI agent controls, which is more than many product teams need.

LaunchDarkly alternatives compared

1. Statsig

Who it is for: teams that use LaunchDarkly mainly for experiments and want analytics in the same tool.

Pricing: Developer is free with 2M events, unlimited flag and config checks and 50,000 session replays a month. Pro is $150 a month for 5M events, then $0.05 per 1,000 events. Enterprise is custom, with warehouse-native deployment.

Strengths: flags are free to check at any volume, every flag can be measured as an experiment, and the statistics include CUPED, sequential testing, holdouts and multi-arm bandits.

Limits: Statsig's blog says Amplitude acquired it on May 5, 2026, after a 2025 agreement to join OpenAI; the original team stayed at OpenAI. We cover the options in Statsig alternatives.

2. GrowthBook

Who it is for: teams that want LaunchDarkly-style flags and experiments with an open-source core.

Pricing: Starter is free on cloud for up to 3 users and 1 project. Pro is $40 per seat a month for up to 30 users. Enterprise is custom. The open-source edition is free to self-host with unlimited flags, experiments and traffic.

Strengths: most of the code is MIT licensed, experiments run on your own data warehouse, and Pro adds multi-arm bandits, safe rollouts with auto-rollback and an AI visual editor.

Limits: approval workflows, ramp schedules and SCIM are Enterprise features, as at LaunchDarkly.

3. PostHog

Who it is for: product-led teams that want flags next to product analytics, session replay and surveys.

Pricing: the first 1M flag requests each month are free, then $0.0001 per request, decreasing with volume. Experiments are billed with flags, and there are no minimums.

Strengths: percentage rollouts, multivariate flags, JSON payloads, beta opt-ins and an MCP server for managing flags from the editor.

Limits: PostHog is a suite of many products, each with its own meter. Our PostHog alternatives guide covers that trade-off.

4. Unleash

Who it is for: teams that want a bill tied to headcount, not traffic.

Pricing: Pay-As-You-Go is $75 per seat a month, billed monthly by credit card, with a 14-day trial. Cloud includes 53M API requests a month, then $5 per million. Enterprise is an annual contract for cloud, self-hosted or hybrid. Unleash Open Source is free.

Strengths: unlimited client-side MAU and service connections, no charge for flag evaluations, and four-eyes approvals, SSO and audit logs on every paid plan.

Limits: self-hosted Pay-As-You-Go has a 5-seat minimum, and the open-source edition stops at 1 project and 2 environments.

5. ConfigCat

Who it is for: smaller teams that want flags with a fixed monthly price.

Pricing: Forever Free includes 10 flags and 2 environments. Pro is $110 a month billed annually ($120 monthly), Smart $325 and Enterprise $900 a month billed annually.

Strengths: unlimited seats, MAUs and service connections on every plan, and the free plan has the same feature set as paid plans.

Limits: plans are sized by config downloads and flag count, so heavy polling pushes you up a tier.

6. Flagsmith

Who it is for: teams that want open-source flags and remote config, hosted or on their own servers.

Pricing: Free covers 50,000 requests a month for 1 team member. Start-Up is $40 a month billed yearly ($45 monthly) for 1M requests and 3 members, and Scale-Up is $250 a month billed yearly. Enterprise adds private cloud and self-hosted options.

Strengths: BSD-3-Clause licensed core, unlimited flags, environments and segments, and A/B testing from Start-Up.

Limits: SAML, roles and change requests start at Scale-Up.

7. Flipt

Who it is for: engineering teams that want flags managed through Git.

Pricing: Flipt Open Source is free. Pro is $200 a month on monthly billing (20% less annually), covers up to 10 instances and has a 14-day trial. Enterprise is custom.

Strengths: every change made in the UI becomes a Git commit, Pro can open pull requests from the UI, and pricing has no per-seat fees.

Limits: its plans focus on flag delivery and Git workflows and list no experiment analysis, so A/B results need another tool.

8. DevCycle

Who it is for: teams that like LaunchDarkly's MAU model but want a lower entry point.

Pricing: Free allows up to 1,000 client-side MAUs with unlimited seats and flags. Business is $500 a month billed annually for 100,000 MAUs, then $2.50 per 1,000. Enterprise is custom.

Strengths: OpenFeature support across all SDKs, A/B testing on every plan, and stale flag detection on Business.

Limits: DevCycle says it is now part of Dynatrace, following Dynatrace's asset purchase of the platform.

9. Datadog Feature Flags

Who it is for: teams already on Datadog that want flags tied to their monitoring.

Pricing: Feature Flags are free below 1M monthly flag configuration requests, then $55 per 1M billed annually ($89 monthly). Datadog Experiments, built from its acquisition of Eppo, starts at $450 per launched experiment a month billed annually.

Strengths: built on OpenFeature, with flag states visible next to APM, RUM and product analytics data.

Limits: flag impact analysis in APM, RUM or Product Analytics requires those Datadog products.

How to choose a LaunchDarkly alternative

Look at what drives your LaunchDarkly bill. If client-side MAU is the problem, Unleash and ConfigCat do not charge for it. If you mostly run experiments, Statsig and GrowthBook include stronger statistics on cheaper plans. If you need self-hosting, compare GrowthBook, Unleash, Flagsmith and Flipt. Our feature flag tools roundup also covers Firebase Remote Config and AWS AppConfig.

Measure what each rollout does to user activation, not just error rates. For in-app onboarding or surveys shown to a segment, PLG OS's Growth plan ($149 a month) lists custom events, attributes and feature flags with audience segmentation; it complements a flag platform rather than replacing one.

FAQs

What is the best alternative to LaunchDarkly?

Statsig and GrowthBook are the closest for flags plus experiments, Unleash and ConfigCat are the most predictable to budget for, and PostHog suits teams that also want analytics.

Is there a free alternative to LaunchDarkly?

Yes. GrowthBook, Unleash, Flagsmith and Flipt have free open-source editions, and Statsig, ConfigCat, DevCycle and PostHog have free cloud tiers.

How much does LaunchDarkly cost?

As of October 2026, Developer is free, Foundation costs $10 per service connection and $8.33 per 1,000 client-side MAU a month billed yearly, and Enterprise is custom.

Which LaunchDarkly alternative does not charge per MAU?

Unleash charges per seat with unlimited client-side MAU, and ConfigCat includes unlimited MAUs on every plan.

Can I self-host a LaunchDarkly alternative?

Yes. GrowthBook, Unleash, Flagsmith and Flipt all offer self-hosted editions.