Softwr

Testing · head to head

Cypress vs GrowthBook

Cypress logo

Cypress

Testing

JavaScript end-to-end testing framework with browser-based runner and cloud service

From
Free
Rated
-
Full reviewWebsite
GrowthBook logo

GrowthBook

Testing

Open source feature flags and A/B testing that run experiment analysis inside your own data warehouse

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Cypress limited to web applications; mobile and desktop app testing not supported; GrowthBook warehouse-native analysis is only an advantage if you have a warehouse with clean event data in it; without one, GrowthBook has nothing to compute against and you are back to buying an event-collecting platform.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which Cypress and GrowthBook actually diverge.

Attributes where Cypress and GrowthBook differ
AttributeCypressGrowthBook
Pricing modelfreemiumPer user per month
PlatformsmacOS, Windows, LinuxWeb, Self-hosted, Docker

Identical on both: starting price (Free), free tier (Yes), 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 Cypress

Nothing recorded that GrowthBook does not also cover.

Only in GrowthBook

  • Feature flags
  • Warehouse-native analysis
  • Reusable metric definitions
  • Bayesian and frequentist engines
  • CUPED variance reduction
  • Visual editor
  • Self-hosting
  • Guardrail metrics

What people use each for

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

Cypress

  • End-to-end testing for modern JavaScript web applicationsnot GrowthBook
  • Continuous integration pipelines with parallelised test executionnot GrowthBook
  • Visual regression testing and accessibility verificationnot GrowthBook
  • Flaky test detection and eliminationnot GrowthBook
  • Team collaboration on test maintenance and debuggingnot GrowthBook

GrowthBook

  • An engineering team that wants feature flags without a per-monthly-active-user bill that grows with product successnot Cypress
  • A data team that needs experiment results to reconcile exactly with the metrics reported in its BI toolnot Cypress
  • A company with data residency or privacy constraints that cannot send user-level event data to a third-party vendornot Cypress
  • Running long-tail experiments where sequential testing and CUPED shorten the time to a decision on low-traffic surfacesnot Cypress

Where each one falls short

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

Cypress

  • Limited to web applications; mobile and desktop app testing not supported
  • Free tier capped at 500 test results/month; insufficient for most development teams
  • Paid features (flake detection, analytics) not included in free tier
  • JavaScript/TypeScript focused; less suitable for polyglot organisations

GrowthBook

  • Warehouse-native analysis is only an advantage if you have a warehouse with clean event data in it; without one, GrowthBook has nothing to compute against and you are back to buying an event-collecting platform.
  • Metrics are SQL, so a marketing or product team without data engineering support cannot define or fix them, and a badly written metric silently produces a confident wrong answer.
  • Cloud Pro bills per seat and then adds CDN request and bandwidth overages, so a high-traffic site can find the variable component exceeds the seat cost it budgeted for.
  • Self-hosting means you own the Mongo database, the SDK endpoint availability and the upgrade path, and a flag service that is down is a production incident, not an analytics inconvenience.
  • The statistics engine exposes real choices, Bayesian versus frequentist, sequential testing, variance reduction, and the tool will not stop a team that configures them wrongly, so it rewards statistical literacy and punishes its absence.

Pricing, plan by plan

Cypress

Free
  • Starter (Free)Free
    • 500 test results/month
    • 100 prompt executions/month
    • Parallelisation
  • Team$67/month
    • 120k test results/year
    • 9k prompt executions/year
    • Flake detection
  • Business$267/month
    • 120k test results/year
    • 24k prompt executions/year
    • Spec prioritisation
  • Enterprise$undefined/custom
    • 1.8M test results/year
    • 60k prompt executions/year
    • Unlimited users

GrowthBook

Free
  • Open source (self-hosted)Free
    • Unlimited users, feature flags and experiments
    • One project
    • MIT licensed, you run the infrastructure
  • Starter (cloud)Free
    • Up to 3 users
    • 1 project
    • Unlimited flags, experiments and traffic
  • Pro (cloud)$40/month
    • Per seat, up to 50 users
    • 3 projects
    • CDN overage at $10 per million requests beyond the included allowance
  • Enterprise$undefined/year
    • Unlimited users and projects
    • SSO, audit logs and advanced permissions
    • Available on cloud or self-hosted

Which should you pick?

Choose Cypress if

  • You want to start without paying.
  • You work on macOS, Windows, Linux.
Cypress review

Choose GrowthBook if

  • You need feature flags.
  • You want to start without paying.
  • You work on Web, Self-hosted, Docker.
  • You also want warehouse-native analysis.
GrowthBook review

Questions people ask

Is Cypress or GrowthBook better?
Neither clearly leads. Cypress starts at Free and GrowthBook at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Cypress or GrowthBook?
Cypress starts at Free and GrowthBook at Free.
Does Cypress or GrowthBook run on more platforms?
Cypress runs on macOS, Windows, Linux. GrowthBook runs on Web, Self-hosted, Docker.
Can I use Cypress for free?
Both have a free tier, so you can try either at no cost before committing.
What is Cypress best used for?
Cypress is most often used for end-to-end testing for modern javascript web applications, continuous integration pipelines with parallelised test execution, visual regression testing and accessibility verification, flaky test detection and elimination. Of those, end-to-end testing for modern javascript web applications and continuous integration pipelines with parallelised test execution are not what GrowthBook is typically brought in for.
What can Cypress do that GrowthBook cannot?
GrowthBook covers Feature flags, Warehouse-native analysis, Reusable metric definitions, Bayesian and frequentist engines.

Answered from the vendors’ own pages

Cypress: Is Cypress free?

Yes, Cypress offers a free Starter plan with 500 test results per month, 100 prompt executions monthly, 50 users, and 30-day data retention. No credit card is required.

Source
GrowthBook: Is the self-hosted version actually usable, or crippled?

It is genuinely usable: unlimited users, flags and experiments on one project under an MIT licence. The paid tiers add multiple projects, SSO, audit logs and support.

Cypress: How much does Cypress Team cost?

Cypress Team costs $67 per month when billed monthly or $799 per year for annual billing (11% savings). It includes 120,000 annual test results, 9,000 yearly prompt executions, 50 users, 90-day data retention, flake detection, Jira integration, and email support.

Source
GrowthBook: Do I need a data warehouse?

For experiment analysis, effectively yes. Feature flagging works without one, but the reason to choose GrowthBook over a flag-only tool is the warehouse-native statistics.

Cypress: What is the difference between Cypress Team and Business?

Cypress Business costs $267 per month (or $3,199 annually) compared to Team's $67/month ($799/year). Business provides twice the prompt executions (24,000 vs. 9,000 yearly), spec prioritization, auto-cancellation, and enterprise GitHub/GitLab support.

Source
GrowthBook: How does the cost compare with LaunchDarkly or Optimizely?

GrowthBook charges per seat rather than per monthly active user or per tracked event, so cost stops scaling with traffic. At high volume that difference is large.

Cypress: Can I purchase additional test results on Cypress?

Yes, Cypress allows purchasing bundled on-demand test results. Team costs $6 per 1,000 results, Business costs $5 per 1,000, and Enterprise pricing is custom. Open-source projects qualify for complimentary cloud services.

Source
GrowthBook: Does it support mobile and server-side flags?

Yes, there are SDKs across JavaScript, React, Python, Go, Ruby, PHP, Java, Kotlin, Swift and more, covering client, server and mobile evaluation.

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