Feature Flags · true cost · Updated June 2026

The true cost of feature flags

What you'll actually pay. Of the 9 feature flags tools we track, 2 publish no self-serve price (quote-only), 3 charge usage overages. Here's every tool's entry price and its hidden-cost flags — each linked to its sourced record.

The hidden-cost picture

  • No public price: 2 of 9 are quote-only (contact sales).
  • Usage overages: 3 charge for going over plan limits.
  • Cheapest published: LaunchDarkly from $10/mo.
  • No overage or setup fee: LaunchDarkly, GrowthBook, Unleash, ConfigCat.

As of · re-verified with each catalog refresh

Feature Flags — entry price & hidden-cost flags

Every feature flags tool we track, published prices first, quote-only last. Each name links to its sourced pricing record.
ToolEntry priceUsage overagesSetup fee
LaunchDarkly $10/mo
GrowthBook $40/mo
Flagsmith $45/mo Yes
Unleash $75/mo
ConfigCat $110/mo
Statsig $150/mo Yes
DevCycle $500/mo Yes
Harness Feature Management (formerly Split) Quote-only
PostHog Quote-only

Prices and fee terms re-verified with each catalog refresh. Last catalog update 2026-06-15. "Quote-only" means the vendor publishes no self-serve price.

Frequently asked questions

Does feature flags have hidden fees?

Across the 9 feature flags tools we track: 2 publish no self-serve price (quote-only), 3 charge usage overages. As of 2026-06-15.

What is the cheapest feature flag with published pricing?

LaunchDarkly, from $10/mo. Verified 2026-06-15.

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