Flagsmith — Free Service Overview
Flagsmith is a free Dev Tools & IDEs service. Browse features, available discounts, and alternatives below.
Updated: May 2026
About Flagsmith
Flagsmith is a open-source feature flag platform operated by Bullet Train Limited (doing business as Flagsmith), headquartered in London, United Kingdom. The product launched in 2018 and has become a category staple. This page tracks live pricing, named tiers, supported platforms and the practical jobs where Flagsmith earns its keep against competing in the feature flag and experimentation category alongside other developer toolchain providers.
Quick Facts
- Operator: Bullet Train Limited (doing business as Flagsmith)
- Headquarters: London, United Kingdom
- Founded: 2018
- Public-market status: privately held
- Flagship paid tier: Start-up (Start-up at $45/month)
- Free tier available: Yes (Free / open-source self-host)
- Where it sells: Sold globally with USD and GBP billing
- 2025-2026 differentiator: Flagsmith differentiates as the open-source alternative for feature management with a free self-host option; the 2024-2025 roadmap layers Edge API and ML-driven experiment analysis.
What is Flagsmith?
Flagsmith is a open-source feature flag platform that launched in 2018 under Bullet Train Limited (doing business as Flagsmith). The product is built around Multi-environment flag management with percentage rollouts, User segmentation with traits and operators, A/B and multivariate flag variations, with the rest of the catalogue tracked in the platform sections below. The Subger catalogue page pulls live tier pricing from our internal database and links into cancel guides, deal hunters and renewal price trackers so subscribers can monitor Flagsmith across its full lifecycle.
Why choose Flagsmith
Product roadmap and 2025-2026 differentiation
Flagsmith is operated by Bullet Train Limited (doing business as Flagsmith) out of London, United Kingdom, and the team continues to invest in the catalogue that subscribers care about most. The latest roadmap milestone — flagsmith differentiates as the open-source alternative for feature management with a free self-host option — gives buyers a concrete reason to evaluate Flagsmith now rather than waiting for the next refresh cycle.
Feature breadth that matters
Beyond the headline, Flagsmith ships Audit log of every flag change with rollback, SDKs for 16 languages including Python, JS, Go, Java, .NET, Swift and Kotlin and Self-hosted via Docker or Kubernetes with the same UI as cloud. This depth matters because teams rarely buy a single capability — they need a system that absorbs adjacent jobs over time without forcing a vendor switch.
Integration ecosystem and developer access
Flagsmith integrates with the rest of the modern productivity and developer stack out of the box. The Flagsmith team maintains documented webhooks, public APIs and official client libraries so engineering teams can wire it into their existing identity, observability and CI/CD systems without bespoke glue code.
Flagsmith pricing in 2026
The current ladder for Flagsmith ranges from Free ($0) up to Open source self-host ($0 (BSD-3 licence)). The anchor paid tier most teams compare is Start-up at Start-up at $45/month, sourced from the public Flagsmith pricing page.
| Tier | Headline price | What's included |
|---|---|---|
| Free | $0 | 1,000,000 requests/month, basic flags, single environment |
| Start-up | $45/month | 5,000,000 requests, segments, scheduled flags |
| Scale-up | $200/month | 20,000,000 requests, audit log, role-based access |
| Enterprise | Custom | On-prem, SAML SSO, hybrid cloud, custom SLA |
| Open source self-host | $0 (BSD-3 licence) | Self-host the open-source core |
Live pricing across countries
For country-by-country billing currency, taxes and renewal pricing for Flagsmith, see the live pricing table on this page. It pulls directly from our catalogue so promotions, anchor tiers and price drops surface the moment we capture them.
Flagsmith apps and platform coverage
Flagsmith runs on the platforms its category demands. The table below summarises coverage as of 2026.
| Platform | Supported |
|---|---|
| Web dashboard | Yes |
| SDKs (Python, JS, Go, Java, .NET, Swift, Kotlin, more) | Yes |
| REST API | Yes |
| Self-hosted Docker | Yes |
Use cases Flagsmith fits
- Subscribers using multi-environment flag management with percentage rollouts as their primary reason to upgrade
- Teams that need user segmentation with traits and operators on a single billing relationship
- Buyers who value a/b and multivariate flag variations as part of the Start-up bundle
- Operators evaluating Flagsmith against competing in the feature flag and experimentation category alongside other developer toolchain providers
- Existing Flagsmith customers expanding their footprint to Start-up from a free or entry tier
Comparable products in the Subger catalogue
If you are evaluating Flagsmith alongside other tools, the Subger catalogue maintains a separate page per service with live pricing and tier names. Use the relevant hub to compare Flagsmith with adjacent open-source feature flag platform candidates on price, free-tier availability and feature coverage. For each candidate Subger also tracks the cancellation flow, current promo codes and renewal price history so total cost of ownership is visible upfront. Start with the Deals hub, the Promo codes hub and the Renewal price tracker.
Frequently asked questions
Who operates Flagsmith?
The legal operator is Bullet Train Limited (doing business as Flagsmith). The product was founded in 2018; the parent's public-market status today is privately held.
How much does Flagsmith cost in 2026?
The flagship paid tier (Start-up) is Start-up at $45/month. The full ladder — Free, Start-up, Scale-up, Enterprise, Open source self-host — is in the pricing table above with feature differences per tier.
Does Flagsmith offer a free tier or trial?
Yes — Free / open-source self-host is available at $0 with the usage caps shown in the pricing table above. You can also browse the Subger deals page for promotional pricing on paid tiers.
What platforms does Flagsmith run on?
Flagsmith covers the platforms shown in the platform table above. Mobile, desktop and API surfaces vary by tier, and the vendor's release notes track new integrations as they ship.
What's new in Flagsmith for 2025-2026?
In short, the team continues to invest where it matters most: flagsmith differentiates as the open-source alternative for feature management with a free self-host option. That is the development most likely to influence whether Flagsmith is the right choice for a buyer evaluating open-source feature flag platform options in 2026.
How does Flagsmith compare to other open-source feature flag platform options?
Flagsmith differentiates on multi-environment flag management with percentage rollouts and user segmentation with traits and operators plus the broader feature ladder shown above. For a side-by-side comparison with adjacent products, see the Subger category hub linked at the bottom of this page.
Can I cancel Flagsmith anytime?
Yes — cancellation is self-service from flagsmith.com under Organisation → Billing. Subger maintains a step-by-step cancellation guide on the cancel hub that covers the specific in-product flow, refund eligibility and what data is preserved after cancel.
Does Flagsmith offer team, family or enterprise pricing?
Yes — the higher tiers (Open source self-host) target larger deployments with admin controls, audit logs and dedicated support. Quoted pricing depends on seat count and contract length; the pricing table above shows the published anchors.
Is Flagsmith available outside the United States?
Yes. Flagsmith is sold across the following markets: Sold globally with USD and GBP billing. See the live pricing table for country-specific tier pricing in local currencies where applicable.
Where can I find Flagsmith deals and promo codes?
The Subger deals page tracks current Flagsmith promotional pricing, and the renewal price tracker stores historical price points so subscribers can spot post-trial price hikes. Both are linked in the related guides section below.
Get started with Flagsmith
To sign up for Flagsmith, head to the live pricing table at the top of this page. Pick the tier that matches usage: Free for evaluation or Start-up for production usage at Start-up at $45/month, or the Open source self-host tier for advanced deployments. After signup, bookmark this Subger page to monitor renewal pricing and catch any tier or anchor-price changes from Bullet Train Limited (doing business as Flagsmith).
Related Subger guides
- Cancel Flagsmith — step-by-step cancellation guide for the current portal
- Flagsmith deals and promo codes — live promotional offers tracked across the year
- Flagsmith true price tracker — renewal-price history and post-trial cost watch
- Flagsmith promo codes — coupon and code archive with expiration tracking
- Browse the full Subger services catalogue
Pricing
| Regional pricing | Startup | Scale-Up | Enterprise |
|---|---|---|---|
| 🇺🇸United StatesUSD | $45.00 | $200.00 | $0.00 |
| 🇦🇷ArgentinaARS | ARS 39,150.00 | ARS 174,000.00 | ARS 0.00 |
| 🇦🇺AustraliaAUD | A$68.85≈ $49.85 | A$306.00≈ $221.56 | A$0.00≈ $0.00 |
| 🇧🇷BrazilBRL | R$223.65≈ $45.63 | R$994.00≈ $202.78 | R$0.00≈ $0.00 |
| 🇨🇦CanadaCAD | CA$61.20≈ $44.78 | CA$272.00≈ $199.02 | CA$0.00≈ $0.00 |
| 🇨🇿Czech RepublicCZK | CZK 1,044.00≈ $50.48 | CZK 4,640.00≈ $224.34 | CZK 0.00≈ $0.00 |
| 🇩🇰DenmarkDKK | DKK 309.15≈ $48.67 | DKK 1,374.00≈ $216.33 | DKK 0.00≈ $0.00 |
| 🇫🇷FranceEUR | €41.40≈ $48.71 | €184.00≈ $216.48 | €0.00≈ $0.00 |
| 🇩🇪GermanyEUR | €41.40≈ $48.71 | €184.00≈ $216.48 | €0.00≈ $0.00 |
| 🇮🇳IndiaINR | ₹3,735.00≈ $39.19 | ₹16,600.00≈ $174.16 | ₹0.00≈ $0.00 |
| 🇮🇱IsraelILS | ₪164.25≈ $56.49 | ₪730.00≈ $251.08 | ₪0.00≈ $0.00 |
| 🇮🇹ItalyEUR | €41.40≈ $48.71 | €184.00≈ $216.48 | €0.00≈ $0.00 |
| 🇯🇵JapanJPY | ¥6,728.00≈ $42.82 | ¥29,900.00≈ $190.28 | ¥0.00≈ $0.00 |
| 🇲🇽MexicoMXN | MX$769.50≈ $44.69 | MX$3,420.00≈ $198.61 | MX$0.00≈ $0.00 |
| 🇳🇱NetherlandsEUR | €41.40≈ $48.71 | €184.00≈ $216.48 | €0.00≈ $0.00 |
| 🇳🇿New ZealandNZD | NZ$73.35≈ $43.62 | NZ$326.00≈ $193.85 | NZ$0.00≈ $0.00 |
| 🇳🇴NorwayNOK | NOK 472.50≈ $51.34 | NOK 2,100.00≈ $228.18 | NOK 0.00≈ $0.00 |
| 🇵🇱PolandPLN | PLN 180.00≈ $49.95 | PLN 800.00≈ $221.99 | PLN 0.00≈ $0.00 |
| 🇸🇬SingaporeSGD | SGD 60.30≈ $47.49 | SGD 268.00≈ $211.07 | SGD 0.00≈ $0.00 |
| 🇿🇦South AfricaZAR | ZAR 841.50≈ $51.17 | ZAR 3,740.00≈ $227.41 | ZAR 0.00≈ $0.00 |
| 🇰🇷South KoreaKRW | ₩59,400.00≈ $40.33 | ₩264,000.00≈ $179.24 | ₩0.00≈ $0.00 |
| 🇪🇸SpainEUR | €41.40≈ $48.71 | €184.00≈ $216.48 | €0.00≈ $0.00 |
| 🇸🇪SwedenSEK | SEK 468.00≈ $50.62 | SEK 2,080.00≈ $224.99 | SEK 0.00≈ $0.00 |
| 🇨🇭SwitzerlandCHF | CHF 39.60≈ $50.85 | CHF 176.00≈ $225.98 | CHF 0.00≈ $0.00 |
| 🇦🇪United Arab EmiratesAED | AED 165.15 | AED 734.00 | AED 0.00 |
| 🇬🇧United KingdomGBP | £35.55≈ $48.36 | £158.00≈ $214.93 | £0.00≈ $0.00 |
Prices converted at current exchange rate
Available Guides
Sources
Subger is not affiliated with, endorsed by, or connected to Flagsmith or its parent companies. All trademarks, service marks, and logos belong to their respective owners. Information on this page is provided for informational and comparison purposes only. Pricing and plan details are sourced from publicly available information and may not reflect current offerings — please verify with the official provider. If you are a representative of this service and believe any information is inaccurate, please contact us at info@subger.com.
Track all your subscriptions in one place
Subger helps you manage subscriptions, find deals, and get notified about price changes across 12,000+ services.
Try Subger FreeAdvertisement: Some links on this page may be affiliate links. If you make a purchase through these links, Subger may earn a small commission at no extra cost to you. This helps us keep the site free and continue providing accurate subscription information. We only recommend services we believe provide value.