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Testing · head to head

Katalon vs Testsigma

Katalon logo

Katalon

Testing

Commercial low-code test automation platform built on Appium and Selenium, priced per seat plus separate cloud session add-ons

From
On request
Rated
-
Full reviewWebsite
Testsigma logo

Testsigma

Testing

Natural language test automation for web, mobile and API with a self hosted open source edition

From
Free
Rated
-
Full reviewWebsite

The short version

  • Only Testsigma has a free tier, so it costs nothing to try first.
  • Each has a real cost: Katalon real cost stacks three separate charges, per-seat authoring licence, the True Platform add-on for test management, and per-session cloud execution, so the advertised seat price significantly understates total spend for a team running cloud tests regularly.; Testsigma the natural language layer is a fixed vocabulary rather than real English, so testers spend the first weeks learning which phrasings the parser accepts, which is learning a language after all.
  • They diverge on capability: Katalon covers Low-code test recording, Testsigma covers Natural language authoring.
  • Prices and features above were last checked on 1 September 2026.

Where they differ

Only the attributes on which Katalon and Testsigma actually diverge.

Attributes where Katalon and Testsigma differ
AttributeKatalonTestsigma
Starting priceOn requestFree
Pricing modelPer seat per month, plus separate per-session cloud execution chargesPer user per month
Free tierNoYes
PlatformsWeb, Windows, macOSWeb, iOS, Android, Linux

Identical on both: 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 Katalon

  • Low-code test recording
  • Built on Selenium and Appium
  • Object repository
  • AI-assisted test generation
  • TestCloud execution
  • TestOps management

Only in Testsigma

  • Natural language authoring
  • Unified web, mobile and API tests
  • Self hosted community edition
  • Cloud device and browser grid
  • Data driven runs
  • Custom functions

What people use each for

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

Katalon

  • A QA team wanting a lower-code authoring layer over Selenium and Appium for testers without deep coding backgroundsnot Testsigma
  • An organisation wanting test management and AI-assisted test maintenance bundled with automation authoring in one commercial productnot Testsigma
  • A team needing occasional cross-browser or device cloud sessions without maintaining its own device lab or Selenium Gridnot Testsigma
  • An enterprise wanting a single vendor and support contract for test authoring, management and cloud execution togethernot Testsigma

Testsigma

  • A team maintaining separate Selenium and Appium suites that wants one place for web and native mobile coveragenot Katalon
  • Organisations that must keep test data and execution on premises for regulatory reasonsnot Katalon
  • QA groups with manual testers being asked to automate without first learning Javanot Katalon
  • Evaluating low code test automation properly before committing budget, by running the free edition against the real applicationnot Katalon

Where each one falls short

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

Katalon

  • Real cost stacks three separate charges, per-seat authoring licence, the True Platform add-on for test management, and per-session cloud execution, so the advertised seat price significantly understates total spend for a team running cloud tests regularly.
  • Since it is built on Selenium and Appium underneath, a team with strong automation engineers can replicate most of the core capability for free, paying only for optional cloud execution elsewhere, making Katalon's value proposition mainly about authoring speed rather than unique capability.
  • The steep first-three-seats discount versus the fourth-seat-and-beyond price means cost per seat rises sharply as a team scales past three testers on Katalon Studio alone.
  • Low-code recorded tests can become brittle and hard to maintain at scale in the same way any record-and-playback approach does, requiring the team to still write real code for complex scenarios.
  • Enterprise pricing is quote-only, so the largest deployments lose the pricing transparency the published seat tiers otherwise offer.

Testsigma

  • The natural language layer is a fixed vocabulary rather than real English, so testers spend the first weeks learning which phrasings the parser accepts, which is learning a language after all.
  • Anything conditional or arithmetic falls through to custom Java or JavaScript, and that code lives in the platform editor rather than your repository, where it gets no code review and no version history you control.
  • The community edition lags the cloud product and is not the version the vendor demonstrates, so a self hosted evaluation can understate or overstate what you would actually buy.
  • Cloud execution is billed separately from authoring seats, so a suite that grows from two hundred to two thousand tests changes the bill without anyone changing the plan.
  • Support and engineering are concentrated in Indian time zones, which slows incident turnaround for teams working in the Americas.

Pricing, plan by plan

Katalon

On request
  • Katalon Studio$84/month
    • Annual billing, first three seats at 84 US dollars a seat a month
    • Fourth seat and beyond at 150 US dollars a seat a month
    • Low-code recording, object repository, Selenium and Appium engine underneath
  • True Automation$167/month
    • Annual billing, per seat
    • Includes Studio features plus test management and AI agents
    • True Platform TestOps and TestCloud sold as a further add-on at 700 US dollars a seat a year
  • Enterprise$undefined/year
    • Custom quote for private SaaS and hybrid licensing
    • Dedicated support
    • Negotiated cloud session volume

Testsigma

Free
  • Community Edition$undefined/month
    • Self hosted, open source, no licence fee
    • You supply the infrastructure and the browser or device grid
  • Cloud$undefined/month
    • Priced per authoring user with additional charges for parallel cloud executions and device minutes
    • Published tiers exist but the figures that matter at team scale come from sales

Which should you pick?

Choose Katalon if

  • You need low-code test recording.
  • You work on Web, Windows, macOS.
  • You also want built on selenium and appium.
Katalon review

Choose Testsigma if

  • You need natural language authoring.
  • You want to start without paying.
  • You work on Web, iOS, Android, Linux.
  • You also want unified web, mobile and api tests.
Testsigma review

Questions people ask

Is Katalon or Testsigma better?
Neither clearly leads. Katalon starts at On request and Testsigma at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Katalon or Testsigma?
Testsigma has a free tier; the other does not. Paid plans start at On request for Katalon and Free for Testsigma.
Does Katalon or Testsigma run on more platforms?
Katalon runs on Web, Windows, macOS. Testsigma runs on Web, iOS, Android, Linux.
Can I use Testsigma for free?
Yes. Testsigma has a free tier, so you can try it without paying. Katalon starts at On request.
What is Katalon best used for?
Katalon is most often used for a qa team wanting a lower-code authoring layer over selenium and appium for testers without deep coding backgrounds, an organisation wanting test management and ai-assisted test maintenance bundled with automation authoring in one commercial product, a team needing occasional cross-browser or device cloud sessions without maintaining its own device lab or selenium grid, an enterprise wanting a single vendor and support contract for test authoring, management and cloud execution together. Of those, a qa team wanting a lower-code authoring layer over selenium and appium for testers without deep coding backgrounds and an organisation wanting test management and ai-assisted test maintenance bundled with automation authoring in one commercial product are not what Testsigma is typically brought in for.
What can Katalon do that Testsigma cannot?
Katalon covers Low-code test recording, Built on Selenium and Appium, Object repository, AI-assisted test generation. Testsigma covers Natural language authoring, Unified web, mobile and API tests, Self hosted community edition, Cloud device and browser grid.

Answered from the vendors’ own pages

Katalon: Is Katalon free?

No, though a 30-day free trial with no credit card is offered; the product is commercial with per-seat licensing.

Testsigma: Is the open source edition genuinely usable in production?

Yes for self hosted execution, though it trails the cloud version on newer features and you maintain the grid yourself.

Katalon: Does Katalon replace Selenium and Appium?

No, it is built on top of them; Katalon adds a low-code authoring layer, test management and cloud execution rather than a different automation engine.

Testsigma: Do testers need to know Selenium?

Not to write ordinary steps. They will need someone who does as soon as the suite needs custom functions or awkward waits.

Katalon: Is cloud execution included in the seat price?

No, TestCloud cross-browser and mobile sessions are billed separately, at 197 US dollars a session monthly or 1,899 annually per session.

Testsigma: Can it test native iOS and Android applications?

Yes, through Appium underneath, on the hosted device grid or your own devices.

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