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Testing · head to head

Split vs Zephyr Scale

Split logo

Split

Testing

Feature flags tied to a metrics pipeline that attributes production impact to each release, now Harness FME

From
On request
Rated
-
Full reviewWebsite
Zephyr Scale logo

Zephyr Scale

Testing

Native test management for Jira

From
On request
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Split split is now a module of the Harness platform and split.io redirects to harness.io, so buying it means entering a Harness commercial relationship rather than a standalone flag vendor contract.; Zephyr Scale tightly bound to Jira; limited standalone functionality outside Jira ecosystem
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Split and Zephyr Scale actually diverge.

Attributes where Split and Zephyr Scale differ
AttributeSplitZephyr Scale
PlatformsWeb, API, iOS, Android, Java, Node.js, Python, Go, .NETWeb

Identical on both: starting price (On request), pricing model (quote), free tier (No), user rating (Not yet rated), category (Testing).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Split

  • Feature flags with targeting
  • Metrics impact engine
  • Guardrail metrics
  • Statistical significance testing
  • Event ingestion
  • SDKs and streaming updates
  • Audit and approvals
  • Harness platform integration

Only in Zephyr Scale

Nothing recorded that Split does not also cover.

What people use each for

The jobs each tool is most often brought in to do.

Split

  • A product organisation that wants every release measured against conversion and latency by default, not only deliberate experimentsnot Zephyr Scale
  • Running A/B tests with real statistical significance rather than comparing two dashboard linesnot Zephyr Scale
  • Catching a regression at five per cent rollout because a guardrail metric fires before the change reaches everyonenot Zephyr Scale
  • A team already committed to Harness for CI and CD that wants flags in the same platform and contractnot Zephyr Scale

Zephyr Scale

  • Test case management within Jira workflowsnot Split
  • Manual and automated test execution trackingnot Split
  • Cross-project test asset reusenot Split
  • Requirements traceability from stories to testsnot Split
  • CI/CD pipeline and BDD framework integrationnot Split

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Split

  • Split is now a module of the Harness platform and split.io redirects to harness.io, so buying it means entering a Harness commercial relationship rather than a standalone flag vendor contract.
  • Harness no longer publishes per-module prices, so an organisation that wants only feature management cannot get a list price and must negotiate a module out of a platform bundle.
  • The measurement engine needs traffic volume to reach significance, so a product with modest usage gets flags with an experimentation layer it will rarely be able to conclude anything from.
  • Metric attribution depends on correctly instrumented events flowing into Split, which is an integration project in its own right; without it you have paid for an experimentation platform and are using it as a flag switch.
  • As part of a larger DevOps suite the roadmap now competes with CI, CD, security and cloud cost modules for attention, so feature management is no longer the company’s single focus the way it was as an independent product.

Zephyr Scale

  • Tightly bound to Jira; limited standalone functionality outside Jira ecosystem
  • No-code automation features limited in Standard tier, expanded only in Advanced
  • Data residency feature unavailable for Essential tier, limiting enterprise compliance
  • Transparent cost structure not provided on marketing page

Pricing, plan by plan

Split

On request
  • Harness FreeFree
    • Harness Open Source and community support
    • Intended for individuals and small teams
    • Feature management capability limited at this tier
  • Harness Essentials$undefined/year
    • Bundled DevOps modules including CI, CD, IaC and security testing
    • Standard support
    • Pricing requires contacting sales
  • Harness Enterprise$undefined/year
    • Mix and match from 15 or more modules including Feature Management and Experimentation
    • Premier support with a dedicated account manager
    • Higher pipeline concurrency and organisation limits

Zephyr Scale

On request

No published plan breakdown. See the Zephyr Scale review.

Which should you pick?

Choose Split if

  • You need feature flags with targeting.
  • You work on Web, API, iOS, Android, Java, Node.js, Python, Go, .NET.
  • You also want metrics impact engine.
Split review

Choose Zephyr Scale if

Nothing in the data separates Zephyr Scale from Split on the points above - pick on price and on how each one feels to use.

Zephyr Scale review

Questions people ask

Is Split or Zephyr Scale better?
Neither clearly leads. Split starts at On request and Zephyr Scale at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Split or Zephyr Scale?
Split starts at On request and Zephyr Scale at On request.
Does Split or Zephyr Scale run on more platforms?
Split runs on Web, API, iOS, Android, Java, Node.js, Python, Go, .NET. Zephyr Scale runs on Web.
What is Split best used for?
Split is most often used for a product organisation that wants every release measured against conversion and latency by default, not only deliberate experiments, running a/b tests with real statistical significance rather than comparing two dashboard lines, catching a regression at five per cent rollout because a guardrail metric fires before the change reaches everyone, a team already committed to harness for ci and cd that wants flags in the same platform and contract. Of those, a product organisation that wants every release measured against conversion and latency by default, not only deliberate experiments and running a/b tests with real statistical significance rather than comparing two dashboard lines are not what Zephyr Scale is typically brought in for.
What can Split do that Zephyr Scale cannot?
Split covers Feature flags with targeting, Metrics impact engine, Guardrail metrics, Statistical significance testing.

Answered from the vendors’ own pages

Split: Is Split still called Split?

It is now sold as Harness Feature Management and Experimentation after the Harness acquisition, and split.io redirects to harness.io.

Zephyr Scale: How much does Zephyr Scale cost?

Zephyr Scale pricing is not published on the website. Three tiers are available: Essential, Standard, and Advanced, plus QMetry for Jira. Contact SmartBear or visit Atlassian Marketplace for pricing details.

Source
Split: Can I buy just feature flags?

Not from a price list. Harness publishes bundle tiers and directs single-module buyers to sales.

Zephyr Scale: Is there a free trial available?

Yes, Zephyr offers free trials for Essential, Standard, and Advanced tiers, as well as for QMetry. Visit the product page to start a trial.

Source
Split: What does it do that a plain flag service does not?

It attributes changes in your product metrics to specific flags with statistical significance testing and alerts on guardrail metrics.

Zephyr Scale: Does Zephyr Scale work outside of Jira?

Zephyr Scale is tightly integrated with Jira for test management. For standalone test management outside Jira, SmartBear offers QMetry as an alternative.

Source
Split: Do we need a lot of traffic?

Yes. Statistical tests need volume to conclude, so low-traffic products get limited value from the measurement layer.

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