Featureflip

Overview

Featureflip is feature-flag infrastructure for changing application behavior without deploying new code, with experiments and flag cleanup built into the same toolkit. It best suits small teams and developers who want flags managed through APIs and development tools as well as a dashboard. Its strongest case is the path from rollout to removal; the free tier’s project and team limits make a close look at plan fit worthwhile.

Key features

Percentage rollouts, targeting rules, kill switches, A/B tests, and isolated environments cover the core jobs of releasing gradually and responding when a change needs to be turned off. That combination is useful for teams that want experimentation alongside operational control, though there is no visual editor for building tests.

Flag cleanup is unusually practical: a GitHub Action can open a reviewable pull request to remove a dead flag’s code path across thirteen languages, then archive the flag after the pull request is merged. This makes cleanup part of the code-review workflow rather than a separate reminder, especially for teams with many short-lived flags.

Developers can connect agents including Claude Code, Cursor, Copilot, and Cline through an MCP server, or use the Terraform provider and GitHub Action. Thirteen SDKs and OpenFeature providers, a REST Management API, and an Evaluation API offer several ways to manage and evaluate flags. Server SDKs evaluate locally from in-memory configuration and keep using the last configuration if Featureflip cannot be reached, which helps avoid making a service dependency part of every flag check.

Featureflip says its service and PostgreSQL database run on Hetzner Cloud in the EU. Evaluation context is not stored: server SDKs do not transmit it, while client SDKs send it for evaluation and it is discarded afterward. Two-factor authentication is included on every plan; account security also includes Google sign-in, hashed passwords, and temporary lockouts after repeated failed sign-ins.

Pricing

Featureflip is freemium, with a Free plan and paid plans starting at $49/mo. Free and Solo are both shown as free, billed Free forever. Free allows one project, ten flags per project, two environments per project, up to three team members, seven-day audit logs, one webhook endpoint, and community support. Solo has the same project, flag, environment, and audit-log caps, but is limited to one developer; it does not include the Free plan’s additional team members or webhook endpoint. The Free plan is the more useful starting point for a small group, while Solo fits a single developer.

Team costs $49 a month, or $39 /mo billed annually. It provides unlimited flags, three environments per project, three projects, up to five team members, 30-day audit logs, three webhook endpoints, and email support. It suits a small team that has outgrown the free project or flag caps, but the three-project and five-seat ceilings remain relevant.

Pro costs $99 a month, or $79 /mo billed annually. Its ten projects, five environments per project, up to ten team members, flag owners, 30-day audit logs, three webhook endpoints, and email support make it a better fit for teams coordinating flags across more projects. Business costs $249 a month, or $199 /mo billed annually, and raises the limits to 25 projects, unlimited environments, and up to 25 team members. It adds OIDC SSO, 90-day audit logs, unlimited webhook endpoints, and priority support for organizations that need those controls.

Enterprise has custom pricing, negotiated directly, for custom scale and requirements, custom data retention, a contracted SLA, on-premise deployment, and SAML/SCIM. There is no free trial; the Free plan offers a way to start without a paid commitment. Free includes two environments and up to three members, so teams should weigh those caps against their project needs before choosing a paid tier.

Platforms

Featureflip supports Android, iOS, macOS, web, APIs, and self-hosted deployments. Mobile SDK support and server-side testing make it relevant to teams releasing across both client and server applications.

Who it's for

Featureflip is a strong fit for indie developers, startups, consultants, and small teams that need feature control plus a maintainable route for retiring flags. Teams that rely on visual experiment editing, need more than the Free plan’s one project or three members, or require enterprise deployment and identity controls should compare their needs carefully against the relevant paid tier.

Pros and cons

• Pro: The GitHub Action turns flag removal into a reviewable pull request across thirteen languages, helping teams avoid leaving dead code paths behind.
• Pro: Local server-side evaluation with the last known configuration supports continued flag evaluation during a Featureflip outage.
• Pro: MCP, Terraform, SDKs, OpenFeature providers, and APIs give development teams multiple integration paths.
• Con: The Free plan is constrained to one project and two environments, and seats are capped at three; growing teams may need to move to a paid tier early.
• Con: There is no visual editor, so teams seeking a visual way to configure experiments should look elsewhere.

Alternatives

For a broader comparison, browse Feature Flag Software or A/B Testing Tools.

• Experimently is worth considering if self-hosting on your AWS account and a free plan with all features included are priorities.
• Apex may suit teams focused on experimentation who want a free-forever starter tier with three live experiments and 10,000 tested visits, plus a free trial.
• Confidence by Spotify is an option for teams prioritizing a free allocation of 75,000 credits per month, unlimited flags and seats, and a choice of EU or US hosting.
• Crazy Egg is a different fit for teams seeking web analytics, heatmaps, conversion analytics, and surveys in its free plan.
• DevCycle is another freemium option; its free plan has stated client and server request quotas.
• Firebase Cloud Messaging is listed as a no-cost service for teams evaluating that option.
• GrowthBook may appeal to teams wanting self-hosted open-source flags and experiments with unlimited traffic on its free plan.
• LaunchDarkly Experimentation offers a free Developer plan with experimentation usage and project limits, plus a free trial.

Verdict

Choose Featureflip if your team needs feature flags, rollout controls, and experiments, and wants flag retirement tied directly to code review. Its broad integrations and resilient server-side evaluation make it a compelling fit for developer-led teams; look elsewhere if visual editing is essential or the free tier’s project and seat caps do not fit.