Softwr

Testing · head to head

Detox vs Percy

Detox logo

Detox

Testing

Open source end-to-end testing framework for React Native apps, built and maintained by Wix

From
Free
Rated
-
Full reviewWebsite
Percy logo

Percy

Testing

Visual regression testing owned by BrowserStack, with a permanent free tier for low screenshot volume

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Detox it only benefits React Native apps; teams with native iOS, native Android, or non-React-Native hybrid apps get no advantage from its core gray-box synchronisation design and should use Appium instead.; Percy pixel-based diffing generates more false positives from font rendering and anti-aliasing noise than Applitools' AI-based comparison, which trains some teams to start ignoring diff alerts over time.
  • They diverge on capability: Detox covers Gray-box synchronisation, Percy covers Screenshot diffing.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Detox and Percy actually diverge.

Attributes where Detox and Percy differ
AttributeDetoxPercy
Pricing modelOpen source, no licence feeFreemium, paid tiers by screenshot volume
PlatformsiOS, AndroidWeb

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 Detox

  • Gray-box synchronisation
  • React Native native integration
  • Real device and simulator support
  • Jest integration
  • Element matching and actions
  • CI-friendly execution

Only in Percy

  • Screenshot diffing
  • Framework integrations
  • Responsive and cross-browser snapshots
  • Review workflow
  • Build history
  • BrowserStack platform integration

What people use each for

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

Detox

  • A React Native team wanting end-to-end tests that reliably wait for real app state rather than fixed sleep delaysnot Percy
  • A CI pipeline running mobile end-to-end tests that need to be genuinely reliable, not flaky, to avoid blocking merges on false failuresnot Percy
  • A team migrating from Appium-based React Native testing wanting tighter synchronisation with the app's async internalsnot Percy
  • An engineering organisation wanting a free, actively used-in-production framework rather than a lightly maintained side projectnot Percy

Percy

  • A team already on BrowserStack for device testing that wants to add visual regression without a separate vendor relationshipnot Detox
  • A low-traffic project that can run indefinitely on the 5,000-screenshot free tier without paying anythingnot Detox
  • A team wanting a lower cost per screenshot than Applitools and willing to tolerate more manual false-positive triagenot Detox
  • A Cypress or Playwright test suite adding visual checks without changing its existing test runnernot Detox

Where each one falls short

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

Detox

  • It only benefits React Native apps; teams with native iOS, native Android, or non-React-Native hybrid apps get no advantage from its core gray-box synchronisation design and should use Appium instead.
  • As a single-company open source project, its long-term maintenance priority is tied to Wix's own continued internal use of React Native and Detox, which is a real, if currently low, dependency risk.
  • Initial setup, particularly around build configuration for iOS and Android, has a steeper learning curve than some competing frameworks, with configuration errors being a common source of early frustration.
  • Its community and plugin ecosystem is smaller than Appium's broader, foundation-governed mobile automation ecosystem.
  • Debugging synchronisation issues when the gray-box mechanism misjudges app idle state can itself be a non-trivial troubleshooting exercise, ironically producing the same kind of flaky-test debugging it is designed to avoid.

Percy

  • Pixel-based diffing generates more false positives from font rendering and anti-aliasing noise than Applitools' AI-based comparison, which trains some teams to start ignoring diff alerts over time.
  • It is billed separately from core BrowserStack device testing, and stacking Percy with other BrowserStack modules such as Accessibility Testing materially increases total contract value beyond the headline device testing price.
  • Paid tier pricing above the free tier is not transparently published as a fixed number, requiring a quote to know actual cost at scale.
  • The free tier's 5,000-screenshot cap is easy to exceed for any team running visual tests across multiple browsers and viewports on every commit, pushing many active projects into a paid tier faster than the free number suggests.
  • As part of a larger acquired portfolio, Percy's roadmap priority within BrowserStack's broader product strategy is less certain than it would be as a standalone company's sole focus.

Pricing, plan by plan

Detox

Free
  • DetoxFree
    • Full functionality, no usage limits
    • Community support via GitHub
    • Built and maintained by Wix for its own internal React Native testing needs

Percy

Free
  • FreeFree
    • 5,000 screenshots a month
    • Unlimited users and projects
    • 30-day build history
  • Percy$undefined/month
    • Priced by screenshot volume above the free tier
    • Sold separately from core BrowserStack device testing plans
    • Get a current quote before assuming bundled pricing with other BrowserStack products

Which should you pick?

Choose Detox if

  • You need gray-box synchronisation.
  • You want to start without paying.
  • You work on iOS, Android.
  • You also want react native native integration.
Detox review

Choose Percy if

  • You need screenshot diffing.
  • You want to start without paying.
  • You also want framework integrations.
Percy review

Questions people ask

Is Detox or Percy better?
Neither clearly leads. Detox starts at Free and Percy at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Detox or Percy?
Detox starts at Free and Percy at Free.
Does Detox or Percy run on more platforms?
Detox runs on iOS, Android. Percy runs on Web.
Can I use Detox for free?
Both have a free tier, so you can try either at no cost before committing.
What is Detox best used for?
Detox is most often used for a react native team wanting end-to-end tests that reliably wait for real app state rather than fixed sleep delays, a ci pipeline running mobile end-to-end tests that need to be genuinely reliable, not flaky, to avoid blocking merges on false failures, a team migrating from appium-based react native testing wanting tighter synchronisation with the app's async internals, an engineering organisation wanting a free, actively used-in-production framework rather than a lightly maintained side project. Of those, a react native team wanting end-to-end tests that reliably wait for real app state rather than fixed sleep delays and a ci pipeline running mobile end-to-end tests that need to be genuinely reliable, not flaky, to avoid blocking merges on false failures are not what Percy is typically brought in for.
What can Detox do that Percy cannot?
Detox covers Gray-box synchronisation, React Native native integration, Real device and simulator support, Jest integration. Percy covers Screenshot diffing, Framework integrations, Responsive and cross-browser snapshots, Review workflow.

Answered from the vendors’ own pages

Detox: Is Detox owned by Wix?

Yes, it is built and maintained by Wix as an open source project, used internally across Wix's own React Native apps.

Percy: Is Percy free?

Yes for up to 5,000 screenshots a month with unlimited users and projects; beyond that it is a paid, quote-priced module.

Detox: Does Detox work with native iOS or Android apps, not just React Native?

It is specifically designed around React Native's architecture; for native or non-React-Native hybrid apps, Appium is the more appropriate choice.

Percy: Is Percy included if I already pay for BrowserStack device testing?

No, it is billed separately by screenshot volume, not bundled into core device testing plans.

Detox: Is Detox free?

Yes, entirely open source with no licence fee.

Percy: How does it compare to Applitools?

Percy uses pixel-based diffing, which is generally cheaper per screenshot but produces more false positives than Applitools' AI-based perceptual comparison.

Share

Related pages

More on Detox

More on Percy

Keep looking

Other head to heads