# Alternatives to LaunchDarkly

LaunchDarkly is a feature management platform for progressive rollouts, targeting, experimentation, and kill switches across server and client SDKs.

LaunchDarkly ranks #5 of 8 in Feature flag platforms, with an Alt Score of 86. It is proprietary, freemium from $10/mo per Service Connection (Foundation plan) and available on the web. 13 of 13 checklist rows are verified against a public source.

Source: https://altcatalog.com/alternatives/launchdarkly/
Category: Feature flag platforms

## Overview

- **Who it's for**: Engineering teams — from a single free-tier developer up to large enterprises — who need to control feature releases, run experiments, and manage AI agent configs safely in production without redeploying code.
- **What you get**: A hosted feature-flag and experimentation platform with percentage-based progressive and guarded rollouts, individual/segment-based user targeting, kill switches, A/B/n experimentation with Bayesian and frequentist analysis, approval workflows, a full change history (audit log), SSO/SAML with SCIM provisioning, and 30+ server-side, client-side, mobile, and edge (Cloudflare, Fastly, Akamai, Vercel) SDKs. A free Developer plan offers unlimited seats and unlimited feature flags; paid Foundation and Enterprise plans add usage-based scale, unlimited change history, and approvals.
- **How it works**: Developers wrap code paths in flags managed through the LaunchDarkly web app, then embed a LaunchDarkly SDK in their application; server-side SDKs stream the full flag ruleset and evaluate flags in-process/in-memory without a network call per evaluation, while edge SDKs evaluate flags inside the edge provider itself. Optionally, teams run the self-hosted Relay Proxy to cache and forward the streaming connection to many app instances, though the flag-management service itself remains LaunchDarkly's hosted SaaS.

## Profile

- **License**: Proprietary (verified 2026-07-17)
- **Pricing model**: Freemium (verified 2026-07-17)
- **Starts at**: $10/mo per Service Connection (Foundation plan) (verified 2026-07-17)
- **Platforms**: Web
- **Status**: active (verified 2026-07-17)

## Ranked alternatives

| # | App | Alt Score | Licence | Platforms |
|---|-----|-----------|---------|-----------|
| 1 | [Flagsmith](https://altcatalog.com/alternatives/flagsmith.md) | 100 | BSD-3-Clause | Web |
| 2 | [Unleash](https://altcatalog.com/alternatives/unleash.md) | 100 | AGPL-3.0-or-later | Web |
| 3 | [GrowthBook](https://altcatalog.com/alternatives/growthbook.md) | 96 | MIT (with GrowthBook Enterprise License for enterprise-only directories) | Web |
| 4 | [DevCycle](https://altcatalog.com/alternatives/devcycle.md) | 86 | Proprietary | Web |
| 5 | [ConfigCat](https://altcatalog.com/alternatives/configcat.md) | 83 | Proprietary (platform); MIT (SDKs) | Web |
| 6 | [Split](https://altcatalog.com/alternatives/split.md) | 83 | Proprietary | Web |
| 7 | [Reflag](https://altcatalog.com/alternatives/bucket.md) | 72 | Proprietary (platform); MIT (SDKs) | Web |

Alt Score = Verified coverage (90%) + Visibility (10%). See https://altcatalog.com/how-alt-score-works/

## Feature comparison

Legend: Yes / No / Partial / ? (not verified).

| Feature flag platforms checklist | LaunchDarkly | Flagsmith | Unleash | GrowthBook | DevCycle | ConfigCat |
|---|---|---|---|---|---|---|
| Pricing model | Freemium | OSS + paid hosting | OSS + paid hosting | OSS + paid hosting | Freemium | Freemium |
| Starts at | $10/mo per Service Connection (Foundation plan) | $45/month | $75/seat/month (USD) | $40/seat/month | $500 USD/month (Business plan, billed annually; $625/month billed monthly) | $110/month |
| License | Proprietary | BSD-3-Clause | AGPL-3.0-or-later | MIT (with GrowthBook Enterprise License for enterprise-only directories) | Proprietary | Proprietary (platform); MIT (SDKs) |
| Platforms | Web | Web | Web | Web | Web | Web |
| Open source | No | Yes | Yes | Yes | No | No |
| Self-hostable | No | Yes | Yes | Yes | No | Yes |
| Percentage / gradual rollouts | Yes | Yes | Yes | Yes | Yes | Yes |
| User targeting & segments | Yes | Yes | Yes | Yes | Yes | Yes |
| A/B testing / experimentation | Yes | Yes | Yes | Yes | Yes | Partial |
| Kill switches | Yes | Yes | Yes | Yes | Yes | Yes |
| SDKs (server + client) | Yes | Yes | Yes | Yes | Yes | Yes |
| Local evaluation / edge | Yes | Yes | Yes | Yes | Yes | Yes |
| Audit logs | Yes | Yes | Yes | Yes | Yes | Yes |
| Approval workflows | Yes | Yes | Yes | Yes | Yes | ? |
| Analytics integration | Yes | Yes | Yes | Yes | Yes | Yes |
| Free tier flag limit | Yes | Yes | Yes | Yes | Yes | Yes |
| SSO / SAML | Yes | Yes | Yes | Partial | Yes | Yes |

## Sources

Sources for LaunchDarkly. Each alternative is sourced on its own page.

- **License**: Proprietary — <https://launchdarkly.com/policies/terms-of-service/> (verified 2026-07-17)
  - Note: The LaunchDarkly platform is proprietary, hosted SaaS. Its client/server SDKs are separately published as open source (e.g. js-client-sdk is Apache License 2.0 per its GitHub LICENSE.txt), but that do
  - Quote: “grants to Customer a limited, non-sublicensable, non-exclusive, non-transferable”
- **Pricing model**: Freemium — <https://launchdarkly.com/pricing> (verified 2026-07-17)
  - Note: Free Developer plan ($0/mo) plus paid Foundation (usage-based, e.g. $10/mo per Service Connection) and custom-priced Enterprise/Guardian plans.
  - Quote: “One platform for features and agents. Free to start.”
- **Starts at**: $10/mo per Service Connection (Foundation plan) — <https://launchdarkly.com/pricing> (verified 2026-07-17)
  - Note: Cheapest paid tier (Foundation) is usage-based, billed per Service Connection and per 1K client-side MAU ($8.33/mo per 1k client-side MAU), not a flat seat price.
  - Quote: “CodeControl: $10 per Service Connection / mo”
- **Platforms**: Web — <https://launchdarkly.com/pricing> (verified 2026-07-17)
  - Note: LaunchDarkly is a SaaS web platform; flag evaluation happens via SDKs embedded in customer apps across many languages/runtimes, not a distinct desktop/mobile LaunchDarkly app.
  - Quote: “One platform for features and agents.”
- **Status**: active — <https://launchdarkly.com/docs/home/changelog> (verified 2026-07-17)
  - Note: Documentation changelog shows entries dated within days of this research (2026-07-17), indicating active ongoing development.
  - Quote: “July 15, 2026”
- **Open source**: No — <https://launchdarkly.com/policies/terms-of-service/> (verified 2026-07-17)
  - Note: The platform is licensed under restrictive SaaS subscription terms, not an open source license. (SDKs are separately OSS, but the flag-management platform is not.)
  - Quote: “grants to Customer a limited, non-sublicensable, non-exclusive, non-transferable”
- **Self-hostable**: No — <https://raw.githubusercontent.com/launchdarkly/ld-relay/v8/README.md> (verified 2026-07-17)
  - Note: The Relay Proxy caches/forwards flag data from LaunchDarkly's cloud; it does not let customers run the flag-management server itself. The ToS confirms LaunchDarkly is delivered as 'the hosted LaunchDa
  - Quote: “The LaunchDarkly Relay Proxy establishes a connection to the LaunchDarkly streaming API, then proxies that stream connection to multiple clients.”
- **Percentage / gradual rollouts**: Yes — <https://launchdarkly.com/docs/home/releases/create-progressive-rollouts> (verified 2026-07-17)
  - Quote: “Adjust the percentage of traffic and the duration of each step if needed.”
- **User targeting & segments**: Yes — <https://launchdarkly.com/docs/home/flags/individual-targeting> (verified 2026-07-17)
  - Quote: “The flag's Targeting tab allows you to assign individual contexts to a particular flag variation, based on the context key.”
- **A/B testing / experimentation**: Yes — <https://launchdarkly.com/docs/home/experimentation> (verified 2026-07-17)
  - Quote: “Compare multiple variations of one experience (A/B/n testing): Assign contexts to two or more flag or AgentControl config variations and measure which variation performs best on the metrics you attach”
- **Kill switches**: Yes — <https://launchdarkly.com/docs/home/flags/killswitch> (verified 2026-07-17)
  - Note: Enabled" (true) and "Disabled" (false)."
  - Quote: “Kill switch flags, sometimes called circuit breaker flags, are permanent boolean flags with two variations: ”
- **SDKs (server + client)**: Yes — <https://launchdarkly.com/docs/sdk/concepts/client-side-server-side> (verified 2026-07-17)
  - Quote: “LaunchDarkly attempts to keep all SDKs at feature parity with each other. Even so, slight feature differences exist between server-side, client-side, mobile, and edge SDKs.”
- **Local evaluation / edge**: Yes — <https://launchdarkly.com/docs/sdk/concepts/client-side-server-side> (verified 2026-07-17)
  - Note: LaunchDarkly also offers dedicated Edge SDKs (Akamai, Cloudflare, Fastly, Vercel) that evaluate flags within the edge provider itself.
  - Quote: “Server-side SDKs can evaluate flags because these SDKs know your complete flag ruleset. These SDKs can determine contexts' flag variations without having to make requests to LaunchDarkly's servers for”
- **Audit logs**: Yes — <https://launchdarkly.com/docs/home/releases/change-history> (verified 2026-07-17)
  - Quote: “The LaunchDarkly change history used to be called the audit log. The LaunchDarkly REST API still references the audit log.”
- **Approval workflows**: Yes — <https://launchdarkly.com/docs/home/releases/approvals> (verified 2026-07-17)
  - Quote: “When an account member plans a change to a feature flag, AgentControl config, experiment, or segment, they have the option to request approval for that change from a member or team in their LaunchDark”
- **Analytics integration**: Yes — <https://launchdarkly.com/docs/integrations/data-export> (verified 2026-07-17)
  - Quote: “Data Export provides a real-time export of raw analytics data, including feature flag requests, analytics events, custom events, Experimentation events, and more.”
- **Free tier flag limit**: Yes — <https://launchdarkly.com/pricing> (verified 2026-07-17)
  - Note: The free Developer plan ($0/mo) includes unlimited seats and unlimited feature flags, but limited Client-side MAU and Service Connections.
  - Quote: “Unlimited feature flags”
- **SSO / SAML**: Yes — <https://launchdarkly.com/docs/home/account/saml> (verified 2026-07-17)
  - Quote: “If you're a LaunchDarkly administrator or account Owner, you can configure LaunchDarkly to use your IdP when account members authenticate.”

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Ranked by verified data, never by who paid. https://altcatalog.com/trust/