Featureflip vs Flagsmith
Flat pricing vs API-request metering, hosted SaaS vs OSS self-host: a 2026 comparison.
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Featureflip and Flagsmith solve the same problem from opposite directions. Flagsmith is open-source (BSD-3-Clause) with a free self-hosted edition and a usage-metered SaaS that charges per million API requests. Featureflip is a closed-source SaaS with flat monthly pricing and unlimited evaluations. Pick Flagsmith if you want to self-host or run on the open-source edition. Pick Featureflip if you want predictable flat billing for a hosted product without API-request accounting and without operating your own infrastructure.
At a glance
Five-row summary. Detail in the sections below.
| Featureflip | Flagsmith | |
|---|---|---|
| Starting price | $0/mo Free (up to 3 team members, 10 flags) | $0/mo SaaS (1 user, 50K req/mo) or free OSS self-host |
| Paid tier (small team) | $39/mo annual Team, 5 users, unlimited flags & evaluations | $40/mo annual Start-Up, 3 users, 1M API req/mo |
| Open source | No (closed-source SaaS) | Yes (BSD-3-Clause) |
| Self-hostable | Enterprise only | Yes, free (community edition) |
| Pricing model | Flat: unlimited evaluations | Metered: from $50 per additional million API requests, falling with volume |
Pricing comparison
The biggest practical differences between Featureflip and Flagsmith are the pricing model (flat vs metered) and the hosting model (SaaS-only vs SaaS-or-OSS).
Featureflip pricing
As of October 8, 2026.
- Free: $0/mo. 1 project, 10 flags per project, 2 environments, up to 3 team members, 7-day audit log. Free forever.
- Team: $49/mo ($39/mo annual). 3 projects, up to 5 team members, 3 environments, unlimited flags, scheduled changes, 30-day audit log.
- Pro: $99/mo ($79/mo annual). 10 projects, up to 10 team members, 5 environments, unlimited flags, scheduled changes, flag owners, 30-day audit log.
- Business: $249/mo ($199/mo annual). 25 projects, up to 25 team members, unlimited environments, unlimited flags, scheduled changes, flag owners, SSO with your own identity provider (OIDC), 90-day audit log.
- Enterprise: custom (sales@featureflip.io). Adds self-hosted deployment, SAML/SCIM SSO, custom data retention, dedicated SLA.
No per-seat fees. No per-API-request fees. Unlimited evaluations on every plan. Google and GitHub sign-in are included on every plan, including Free. Business adds single sign-on through your own identity provider over OIDC, and Enterprise adds SAML/SCIM. See the full pricing page, or read the case for flat pricing over per-seat plans as your team grows.
Flagsmith pricing
As of October 8, 2026, sourced from flagsmith.com/pricing. We re-verify quarterly.
- Free: $0/mo SaaS. 50K API requests/month, 1 team member, unlimited flags/environments/identities. Overage $50 per million. Or self-host the BSD-3-Clause community edition for $0 in license fees.
- Start-Up: $40/mo annual ($45 monthly). 1M API requests/month, 3 team members, unlimited projects, scheduled flags, 2FA, A/B/MVT testing, third-party integrations. 14-day trial. Overage starts at $50/M and falls with volume.
- Scale-Up: $250/mo annual ($300 monthly). 5M API requests/month, 5 team members included, additional members at $50/seat/month on annual billing or $60 month-to-month (up to 20 total), SAML/SSO, RBAC, change requests, audit logs, priority support. Overage starts at $50/M and falls with volume.
- Enterprise: Custom. LDAP/SCIM, dedicated SLA, real-time chat support, on-prem and air-gapped hosting.
Estimate your own Flagsmith bill
Enter your monthly API requests and team size to estimate Flagsmith's metered SaaS cost against Featureflip's flat price. Defaults to annual billing. Switch to month-to-month with the toggle.
Flagsmith Scale-Up
$3,000
per year, estimated (annual billing)
Featureflip Team
$468
per year, flat (annual billing). No usage-based fees on API requests and team members.
At this usage, Flagsmith Scale-Up runs about $3,000/year, roughly $2,532/year more than Featureflip Team at a flat $468. Flagsmith's bill climbs with your usage. Featureflip's changes only when you move to another plan.
Flagsmith rates sourced from flagsmith.com/pricing, checked October 8, 2026. Estimate covers Start-Up/Scale-Up API requests and team members only; it excludes self-hosted / on-prem deployment (free license, but you carry the operational cost), negotiated Enterprise terms. Enterprise (more than 20 seats, LDAP or SCIM, or custom hosting) is quote-only. Featureflip's side is the cheapest plan whose team-member and project limits fit these numbers.
Prefer a dedicated tool? Use the full Flagsmith cost calculator.
Worked example: small team, 50K-MAU SaaS, 8 engineers
- Featureflip Pro: $79/mo annual = $948/year, 10 seats included, unlimited evaluations.
- Flagsmith Start-Up doesn't fit: only 3 seats included. 8 engineers forces Scale-Up at $250/mo annual = $3,000/year base, plus 3 additional seats at $50/seat/mo = +$1,800/year. Total $4,800/year.
For a hosted small team at this profile, Featureflip Pro is roughly 5× cheaper.
Worked example: tiny team, 1–3 engineers
- Featureflip Free: $0/mo, forever, for up to 3 team members. Caps at 1 project and 10 flags per project.
- Flagsmith Start-Up annual: $40/mo = $480/year, 3 seats included.
A team of up to 3 people fits entirely on Featureflip's Free plan, so the whole $480/year gap is avoided. If you outgrow the 1-project or 10-flag ceiling, Featureflip Team is $39/mo annual ($468/year) for up to 5 seats and 3 projects, still cheaper than Flagsmith Start-Up, with two spare seats and no Scale-Up cliff at the fourth hire.
Worked example: high-traffic backend
A backend service evaluating flags 100 million times per month (mobile API, ad-serving path, IoT fleet):
- Featureflip Pro or Business: $99–249/mo flat. Unlimited evaluations.
- Flagsmith Scale-Up: 5M included, 95M overage at the $50/M starting rate = up to +$4,750/mo on top of plan.
For high-traffic API surfaces, the Featureflip flat-rate model compounds in your favor every month.
Pricing TL;DR
- Want a free flag platform you'll operate yourself: Flagsmith OSS.
- Want hosted SaaS with flat pricing and unlimited evaluations: Featureflip is cheaper at every team size on annual billing, and month-to-month once you pass 3 seats or 1M requests.
- Run a high-traffic backend where API-request metering becomes painful: Featureflip's flat plan removes the variable.
Feature comparison
Verified against the Featureflip codebase and Flagsmith's public documentation as of October 8, 2026.
| Feature | Featureflip | Flagsmith |
|---|---|---|
| Core flags | ||
| Boolean flags | ✅ | ✅ |
| Multivariate flags (string, number, JSON) | ✅ | ✅ |
| Percentage rollouts | ✅ | ✅ |
| Real-time updates | ✅ (SSE streaming) | ✅ (real-time flags, Enterprise) |
| Sub-millisecond local evaluation | ✅ | ✅ |
| Edge / global low-latency runtime | ❌ | ✅ (Edge API) |
| Kill switches | ✅ | ✅ |
| Targeting | ||
| User targeting | ✅ | ✅ (identities) |
| Custom attributes / traits | ✅ | ✅ |
| Segments / cohorts | ✅ | ✅ |
| AND/OR condition groups | ✅ | ✅ |
| Server-side stored identity / trait API | ❌ | ✅ |
| Workflow | ||
| Multi-environment | ✅ | ✅ |
| Audit log | ✅ (7d / 30d / 90d by plan) | ✅ (Scale-Up+) |
| Stale flag detection | ✅ (auto Stale/Dead from evaluation traffic, plus expiry dates, and cleanup notice emails on Team and above) | ✅ (Scale-Up+, time-based: no changes for 30 days by default) |
| Removes the dead code by pull request | ✅ (one PR per flag, 13 languages, archives the flag on merge) | ❌ |
| Scheduled changes | ✅ (paid plans) | ✅ (Start-Up+) |
| Approval workflows / change requests | ❌ | ✅ (Scale-Up+) |
| Code references (auto-detect flag usage in repo) | ✅ (cleanup Action, 13 languages) | ✅ (GitHub Actions) |
| AI agent flag management (MCP server) | ✅ | ✅ |
| OpenFeature provider | ✅ (Node.js, .NET, Python, Go, Java, PHP, Ruby) | ✅ (Go, Java, .NET, JavaScript web + server, Kotlin, Python, Ruby, Rust, Swift) |
| 2FA | ✅ | ✅ (Start-Up+) |
| Experimentation | ||
| A/B / multivariate variation assignment | ✅ | ✅ |
| Built-in experiment analysis (significance, lift) | ❌ (use external analytics) | ✅ (Enterprise beta) |
| Open source & hosting | ||
| Open-source license | ❌ | ✅ (BSD-3-Clause) |
| Free self-hosted edition | ❌ | ✅ |
| Hosted SaaS | ✅ | ✅ |
| Air-gapped / on-prem | ✅ (Enterprise) | ✅ (Enterprise) |
| Enterprise | ||
| SSO with your identity provider | ✅ (OIDC on Business, SAML/SCIM on Enterprise) | ✅ (Scale-Up+) |
| SAML / SCIM | ✅ (Enterprise) | ✅ (Scale-Up / Enterprise) |
| Custom roles / RBAC | ✅ | ✅ (Scale-Up+) |
| Pricing | ||
| Per-seat fees | None | ✅ ($50/seat annual or $60 monthly over Scale-Up cap) |
| Per-API-request fees | None | ✅ (overage from $50/M, falls with volume) |
| Free SaaS tier | ✅ (Free, up to 3 people, 10 flags) | ✅ (50K req/mo) |
| Free self-host tier | ❌ | ✅ |
SDK and platform support
The two products overlap heavily on the major server and client surface. Both ship JavaScript, Node.js, Python, .NET, Go, PHP, Ruby, Java, React, iOS, Android, and Flutter SDKs. Featureflip adds a dedicated Browser SDK. Flagsmith adds Rust, Elixir, React Native, and Next.js, plus an Edge API that routes requests to the closest of eight data centers.
If your stack uses Rust or you need a global edge runtime today, Flagsmith is the better fit. For everything else, both work.
See the Featureflip SDK overview for the current supported list.
Where each tool wins
Check which column describes your setup, since only one of them will.
Pick Flagsmith when…
- You want to self-host for free. BSD-3-Clause license and no fees for core flagging. Audit logs, RBAC, SAML/SSO, and change requests are proprietary and ship in the Enterprise image. The right choice if you have a platform team and prefer running infrastructure to paying for it.
- You need an edge runtime. Flagsmith's Edge API serves flags from eight regions and routes each request to the closest one.
- You need approval workflows or change requests out of the box. Both are still on the Featureflip roadmap.
- Your stack uses Rust. Flagsmith ships a Rust SDK. Featureflip does not.
- You're already standardized on Flagsmith's identity API model (server-side stored traits) and don't want to refactor.
Pick Featureflip when…
- You want flat pricing with unlimited evaluations. No API-request metering, no overage surprises, no forecasting evaluation budgets. What the plan page says is what you pay.
- You're a high-traffic SaaS or mobile app. Flagsmith's overage starts at $50 per million requests, so the bill grows with your traffic while Featureflip's flat fee stays put. On annual billing Featureflip is cheaper at any volume, and month-to-month it pulls ahead once you outgrow Start-Up's 1M requests or 3 seats.
- You're on hosted SaaS at any team size. Featureflip Team is $39/mo annual for up to 5 seats, already ahead of Flagsmith Start-Up's 3. Need more room? Pro is $79/mo annual for up to 10 seats, still far under Flagsmith's $250/mo Scale-Up at the fourth hire.
- You don't want to operate flag infrastructure. No DB hosting, version upgrades, monitoring, or on-call rotation. In exchange, self-hosting is limited to the Enterprise plan.
- You want a focused flag UI. No identity stores, no trait management, no remote-config layer to learn first. The UI covers flags, segments, and environments.
- You want flag debt to surface itself. Featureflip automatically marks flags Stale or Dead from real evaluation traffic, with reasons per environment. Flagsmith's Stale Flag Detection (Scale-Up and above) is time-based: by default it marks any flag that has gone 30 days without a change in any environment. Once a flag is finished, the cleanup Action opens a pull request that removes it from your code in any of 13 languages, then archives the flag after the change ships. It rewrites with AST transforms instead of an LLM, so a rerun gives you the same diff.
- You want predictable annual budgeting. The flat fee is forecastable a year out without modeling traffic growth.
Migrating from Flagsmith to Featureflip
Most teams choose at adoption time rather than migrating. If you're switching, here's what changes.
Concept mapping
The core data model translates cleanly. Most flag definitions move 1:1.
| Flagsmith | Featureflip | Notes |
|---|---|---|
| Identity | User / context | Featureflip context is passed per evaluation, not stored server-side |
| Trait | Custom attribute | Same shape: string, number, boolean values on the user context |
| Segment | Segment | 1:1. Recreate via the Featureflip dashboard |
| Multivariate flag | Multivariate flag | Boolean, string, number, or JSON variations on both sides |
| Percentage rollout | Percentage rollout | Deterministic-hash bucketing on both sides |
Things to plan for
- Identity API → per-call context. Flagsmith stores user traits server-side via the Identity API. Featureflip SDKs pass context with each evaluation. Expect a small refactor at the SDK call site.
- Approval workflows / change requests. Roadmap on Featureflip. Until those ship, dashboard-based RBAC and the audit log are the available controls: restrict who can edit production flags and review changes after the fact via the audit log.
- Self-hosted Flagsmith cost math. Compare your current spend (DB hosting, container runtime, CI for upgrades, on-call hours) against Featureflip's monthly fee. Hosted wins when the operational cost exceeds the plan price.
Frequently asked questions
- Is Flagsmith open source and Featureflip not?
- Yes. Flagsmith's core is licensed BSD-3-Clause and free to self-host on Docker, Kubernetes, or OpenShift. Audit logs, role-based access control, SAML/SSO, and change requests are proprietary and ship in Flagsmith's Enterprise image. Featureflip is a closed-source SaaS. Self-hosting is available only on the Enterprise plan. If running your own flag infrastructure for $0 in license fees is the requirement, Flagsmith is the right pick. If you would rather pay a flat monthly fee than operate the database, application, and on-call rotation yourself, Featureflip is built for that trade-off.
- Is Flagsmith cheaper than Featureflip?
- Only if you self-host the open-source edition, or pay month-to-month for up to 3 seats and 1 million API requests. On annual billing, Featureflip is cheaper at every team size. Featureflip Team is $39 per month annual ($49 monthly) with 5 seats included, and Flagsmith Start-Up is $40 per month annual ($45 monthly) with 3 seats included. Month-to-month, that leaves Start-Up $4 a month cheaper than Team. The 4th hire forces Flagsmith Scale-Up at $250 per month annual. Featureflip Team at $39 stays flat through 5 seats, and a team that grows past that moves to Pro at $79 per month annual for up to 10 seats. For high-traffic apps the gap widens because Featureflip evaluations are unlimited while Flagsmith bills requests over plan at a rate that starts at $50 per million and falls with volume.
- Does Featureflip charge per API request or evaluation like Flagsmith?
- No. Every Featureflip plan includes unlimited evaluations. Flagsmith meters API requests: 50,000 per month free, 1 million on Start-Up, 5 million on Scale-Up, with overage on every paid tier starting at $50 per additional million and falling with volume. For a backend service evaluating flags 100 million times per month, Flagsmith would add up to $4,750 per month in overage on top of plan at that $50 starting rate. Featureflip stays at $49–249 per month flat.
- Can I self-host Featureflip like Flagsmith?
- Self-hosting is available on Featureflip Enterprise. It is not part of the free or Pro tiers. Flagsmith's free BSD-3-Clause self-host is the cheaper path if running your own flag platform is non-negotiable. There is no license fee and no seat cap on the community edition. The trade-off is operational ownership: database hosting, version upgrades, monitoring, and the on-call cost when something breaks. If those costs exceed Featureflip's monthly fee for your team, hosted is the better fit.
- Does Featureflip support multivariate and A/B testing like Flagsmith?
- Yes. Featureflip supports boolean, string, number, and JSON variations with deterministic-hash percentage rollouts. The bucketing is consistent across sessions and devices, which is the property that makes A/B data analyzable. Featureflip expects you to instrument variation assignment into your own analytics (Mixpanel, Amplitude, your warehouse) and compute significance and lift there. Flagsmith has built-in experiment analysis in beta on Enterprise plans. It needs a connected data warehouse and reports lift, credible intervals, and win probability. LaunchDarkly is a major vendor that bundles the analysis.
- What SDKs do Featureflip and Flagsmith support?
- Heavy overlap on the major server and client surface. Both ship JavaScript, Node.js, Python, .NET, Go, PHP, Ruby, Java, React, iOS, Android, and Flutter. Flagsmith adds Rust, Elixir, React Native, and Next.js, plus an Edge API that routes requests to the closest of eight data centers. Featureflip adds a dedicated Browser SDK. If your stack uses Rust today or you need an edge runtime for client-side flags worldwide, Flagsmith is the better fit.
Ready to try Featureflip?
Start free on the Free plan: 10 flags, 2 environments, no credit card. Paid plans use flat pricing with no per-seat fees.
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If you're not yet sold on Featureflip, a broader six-vendor comparison including Unleash, ConfigCat, GrowthBook, and PostHog.
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Featureflip pricing
$0 / $49 / $99 / $249 per month, flat. The plan details and FAQ behind the comparison.
Methodology: All Flagsmith information was sourced from public documentation (pricing, product, SDK reference) as of October 8, 2026. We re-verify pricing and feature claims quarterly. Featureflip is our product. Comparison reflects publicly stated capabilities. Specific entitlements may vary by contract.
Published by Canopy Labs LLC.