LaunchDarkly's per-MAU pricing scales fast. For teams that want self-hosted feature flags under $50/mo, open-source platforms like Flagsmith, Schematic, and Infisical offer budget-friendly alternatives with real self-hosting depth.
Open-source, self-hostable via Docker/K8s, 1M requests for $45/mo with A/B testing and OpenFeature support — the best direct LaunchDarkly alternative under budget.
Combines feature flags with entitlements, metering, and Stripe billing; generous free tier and usage-based pricing keep it under budget for billing-aware teams.
Open-source, self-hostable secrets and config management — not a full flag platform, but complements your flag stack for environment config and secrets.
LaunchDarkly's per-MAU pricing model is elegant until it isn't. The platform starts free for up to 1,000 monthly active users, then charges $10 per 1,000 MAUs — plus $12 per service connection3. For a team with 20,000 MAUs and a handful of server-side connections, that monthly bill can climb past $200 before you've touched enterprise features. For teams that want the latency control, compliance, and cost predictability of self-hosted feature flags without breaking $50 a month, the open-source landscape has matured considerably — and the things actually worth buying aren't always the most expensive.
This guide compares three alternatives that fit the budget: Flagsmith as the top self-hostable pick, Schematic for B2B SaaS teams that need flags tied to billing, and Infisical as an honorable mention for secrets and environment config management alongside your flag stack.
Self-hosting buys you four things that matter in production:
The trade-off, of course, is operational overhead — you're maintaining the deployment, updates, and backups. But for teams already running Kubernetes or Docker, the footprint is modest. Unleash self-hosted runs at roughly $30/month in infrastructure for 10,000 MAUs with ~20 flags; Flagsmith self-hosted is in the same ballpark4. Compare that to PostHog's self-hosted offering, which can run $200+/month in infrastructure for the same workload4.
For context, the open-source feature flag space has several credible players beyond our three picks:
Both Unleash and GrowthBook are strong options if your needs skew toward flag-concept depth or experimentation stats, respectively. But for the tightest fit under $50 with self-hosting, a managed fallback, and A/B testing out of the box, Flagsmith is the sweet spot.
Flagsmith is the most direct LaunchDarkly alternative in this budget range. The open-source core is licensed under BSD-3-Clause and self-hostable via Docker, Kubernetes, and Helm on Google Cloud, AWS, or Azure6. The free tier covers 50,000 requests per month with unlimited flags1.
The Start-up plan at $45/month bumps that to 1 million requests and 3 team members, with A/B testing and OpenFeature support included1. That's squarely under the $50 ceiling and gives you a managed fallback if you don't want to run your own infrastructure — or you can self-host the OSS edition and pay only for compute (roughly $25–60/month depending on your cloud and traffic)4.
What makes Flagsmith the top pick here is the combination: a genuinely open-source core you can self-host, a paid tier that stays budget-friendly, and a UI that's approachable for non-engineers4. The SDK coverage spans multiple languages with OpenFeature compatibility, so you're not locked into a proprietary evaluation API1.
Where it falls short: Flagsmith's experimentation is bucketing-only — if you need full statistical analysis and Bayesian experimentation, GrowthBook is the better fit2. And while the UI is clean, Unleash goes deeper on flag concepts like strategies and constraints4.
Schematic takes a different angle: it's not a pure feature flag platform but a pricing-and-entitlements engine with flags built in5. Feature flags are reinvented for entitlements — each flag check can evaluate against a customer's plan, entitlements, and usage metering, with sub-50ms evaluation and client-side support5.
For B2B SaaS teams, this is powerful. Instead of maintaining a separate flag system and a separate billing/entitlements system, Schematic ties them together: flags gate features based on what a customer has paid for, and metering feeds back into Stripe billing5. SDKs cover Next.js, Node, Go, React, Python, Java, and C#, with OpenFeature support5.
The free tier is generous, and paid plans are usage-based — meaning you pay for what you use rather than a flat seat price5. That keeps it under $50 for most small teams.
The catch: Schematic is cloud-only. There's no self-hosted option, so if compliance or air-gapped deployment is a hard requirement, this isn't your pick. It's also narrower in scope than a full flag platform — if you need complex rollout strategies (percentage rollouts, mutivariate flags, scheduled toggles) without the billing layer, Flagsmith or Unleash serve better.
Infisical isn't a feature flag platform — and we're transparent about that. It's an open-source, self-hostable secrets and environment configuration management tool that complements your flag stack3.
In practice, many teams running self-hosted feature flags also need to manage environment variables, API keys, and secrets across deployments. Infisical fills that gap: centralised config with versioning, access controls, and sync across environments. If you're already self-hosting Flagsmith or Unleash, Infisical is the natural companion for the config layer that sits alongside your flags.
Why it's an honorable mention and not a top pick: It doesn't evaluate flags, run A/B tests, or manage rollout strategies. If you only need feature flags, skip it. But if your self-hosted stack needs robust secrets management too, it's worth adding — and the open-source edition is free.
Under $50 a month, Flagsmith is the strongest all-around LaunchDarkly alternative for teams that want self-hosting with a budget-friendly managed fallback. Schematic wins for B2B SaaS teams where flags must tie to plans and billing — just accept the cloud-only trade-off. And Infisical earns a spot as the config-and-secrets companion to round out a self-hosted stack.
If your priorities shift — say, you need deep experimentation stats (GrowthBook) or the broadest SDK coverage (Unleash) — the open-source landscape has you covered there too. But for the intersection of self-hostable, under $50, and production-ready, these three are the things actually worth buying.
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| Pick | Price | Self-hosting | Starting price | SDK coverage | |
|---|---|---|---|---|---|
Flagsmith Start-up Plan ▶ Pick | — | Yes (Docker/K8s) | $45/mo (1M req) | Multi-language, OpenFeature | Check price ↗ |
Schematic best for b2b saas | — | No (cloud-only) | Free tier, usage-based | Next.js/Node/Go/Python/Java/C# | Check price ↗ |
Infisical honorable mention | — | Yes (Docker/K8s) | Free open-source | Secrets/config APIs | Check price ↗ |
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Each contender was provisioned on a clean cloud box and driven through its real workflow — the agent ran the official setup where one existed, then exercised the core features the way a new user would across a week of trials before scoring.
