Head to head
Flagsmith vs Split
As a feature flag API, Split rates higher on the APIbenchmarks Index, 81.1 to 79.1, a 2-point gap. Here is how they compare on each criterion.
Criterion by criterion
| Criterion | Flagsmith | Split |
|---|---|---|
| Documentation & DX | ||
| Reliability | ||
| Ecosystem & SDKs | ||
| Accessibility | ||
| APIbenchmarks Index | 79.1 | 81.1 |
Specifications
| Flagsmith | Split | |
|---|---|---|
| Best for | Open-source, self-hostable feature flags + remote config | Feature management + experimentation (Harness FME) |
| Free tier | Free cloud: 50k requests/mo, 1 seat, unlimited flags (self-host fully free) | Free Developer tier: up to 10 seats, 50 feature flags |
| Pricing | Per request (API calls) | Per-seat (usage-based at scale) |
| Official SDKs | 12 languages | 12 languages |
Is Flagsmith better than Split?
On the APIbenchmarks Index, Split rates higher (81.1 vs 79.1). It leads on the four weighted criteria, but price is reported separately, so the best choice still depends on your budget.
Verdict in one line
Split leads by 2 points (81.1 vs 79.1) and wins 3 of 4 criteria; Flagsmith wins 1.
Winner by criterion
| Criterion | Winner | ||
|---|---|---|---|
| Documentation & DX | 78 | 80 | |
| Reliability | 74 | 84 | |
| Ecosystem & SDKs | 80 | 82 | |
| Accessibility | 86 | 78 |
Choose Flagsmith if… / choose Split if…
- →accessibility matters most to you (86 vs 78)
- →your use case matches its focus: open-source, self-hostable feature flags + remote config
- →documentation & dx matters most to you (80 vs 78)
- →reliability matters most to you (84 vs 74)
- →ecosystem & sdks matters most to you (82 vs 80)
- →your use case matches its focus: feature management + experimentation (harness fme)
Pricing side by side
- Model
- Per request (API calls)
- Free tier
- Free cloud: 50k requests/mo, 1 seat, unlimited flags (self-host fully free)
- Free$0
- Start-Up$40-45/mo
- Scale-Up$250-300/mo
- EnterpriseCustom
- Open Source (self-hosted)Free
- Model
- Per-seat (usage-based at scale)
- Free tier
- Free Developer tier: up to 10 seats, 50 feature flags
- Free / Developer$0
- Team (Starter)from $33 / seat / month
- Business / GrowthCustom (contact sales)
- EnterpriseCustom (contact sales)
Vendor-published pricing, verified 2026-06-27 (Flagsmith) and 2026-06-27 (Split).
SDK and language coverage
Both · 9
JavaScriptReact / React NativeFlutterPythonJavaPHPRubyGo.NET / C#
Only Flagsmith · 3
Swift/iOSKotlin/AndroidNode.js
Only Split · 3
AndroidiOSAngular & Redux utilities
Strengths and weaknesses
- +Fully open-source (BSD-3) core that can be self-hosted with no request limits or per-seat fees
- +Broad official SDK coverage: 15+ client- and server-side languages/platforms
- +Genuinely usable free SaaS tier (50k req/mo) plus low Start-Up pricing vs LaunchDarkly
- –No built-in experimentation stats engine; needs Amplitude/Mixpanel/Statsig to determine winners
- –Lacks advanced safety features like automated rollbacks and guardrail-metric monitoring
- –On-prem/private hosting and SCIM/LDAP gated behind custom-priced Enterprise tier
- +Experimentation is first-class: rolling out a flag automatically attributes it to business/operational metrics with statistical significance testing
- +Local, in-memory SDK evaluation backed by Fastly CDN + streaming means sub-millisecond treatment evaluation and millisecond flag propagation
- +Strong, granular customer segmentation/targeting ("splits") on user attributes
- –Premium pricing, generally more expensive than LaunchDarkly, with metered "traffic keys"/MTUs that make scaling costs hard to predict
- –Pricing is opaque: Growth/Enterprise require contacting sales, and most advanced features (data export, SSO, audit logs) are gated to Enterprise
- –Weaker native CI/CD pipeline integration than competitors; some connections need custom webhooks or Zapier
Flagsmith vs Split: questions
- Which has better documentation, Flagsmith or Split?
- Split scores higher on documentation and developer experience: 80 vs 78 out of 100.
- Which is more reliable, Flagsmith or Split?
- Split scores higher on reliability: 84 vs 74 out of 100.
- Do Flagsmith and Split have a free tier?
- Flagsmith: yes (Free cloud: 50k requests/mo, 1 seat, unlimited flags (self-host fully free)). Split: yes (Free Developer tier: up to 10 seats, 50 feature flags).
- How are Flagsmith and Split priced?
- Flagsmith: Per request (API calls). Split: Per-seat (usage-based at scale).
- Which has more official SDKs?
- Both list 12 official SDKs.