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APIs · head to head

Janus Gateway vs Maestro

Janus Gateway logo

Janus Gateway

APIs

WebRTC gateway and media server for real-time communication

From
Free
Rated
-
Full reviewWebsite
Maestro logo

Maestro

Mobile Development

Open source mobile UI testing with YAML flows, and a cloud priced per concurrent device rather than per test minute

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: Janus Gateway no commercial pricing published; open-source project without official commercial offerings; Maestro cloud pricing is per concurrent device at 250 USD per month, so the cost is driven by how quickly you need the suite to finish rather than by how much you test, and a team wanting a fast pull request gate buys several devices at once.
  • They diverge on capability: Janus Gateway covers WebRTC Gateway, Maestro covers YAML test flows.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Janus Gateway and Maestro actually diverge.

Attributes where Janus Gateway and Maestro differ
AttributeJanus GatewayMaestro
Pricing modelopen-sourcePer concurrent cloud device per month
PlatformsLinux, MacOS, BSDiOS, Android, Web, macOS, Linux, Windows
CategoryAPIsMobile Development
Founded2010Unknown

Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated).

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 Janus Gateway

  • WebRTC Gateway
  • Media Routing
  • Video Conferencing
  • RTP
  • SRTP
  • REST API
  • Linux support
  • MacOS support

Only in Maestro

  • YAML test flows
  • Built-in flakiness tolerance
  • Maestro Studio
  • Open source CLI
  • Cloud device runs
  • CI and pull request integration

What people use each for

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

Janus Gateway

  • API Developmentnot Maestro
  • API Gatewaynot Maestro
  • API Testingnot Maestro
  • API Documentationnot Maestro
  • Microservicesnot Maestro

Maestro

  • A mobile team replacing an Appium suite that spends more engineering time on maintenance than on new coveragenot Janus Gateway
  • Running smoke tests on every pull request without buying and maintaining a physical device labnot Janus Gateway
  • Letting a QA specialist who does not write application code author and own the end-to-end suitenot Janus Gateway
  • Reproducing a reported bug by recording the exact flow in Studio and committing it as a regression testnot Janus Gateway

Where each one falls short

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

Janus Gateway

  • No commercial pricing published; open-source project without official commercial offerings
  • Community-supported only; no vendor commercial support or SLA available

Maestro

  • Cloud pricing is per concurrent device at 250 USD per month, so the cost is driven by how quickly you need the suite to finish rather than by how much you test, and a team wanting a fast pull request gate buys several devices at once.
  • YAML is deliberately limited, so tests with real conditional logic or data-driven permutations end up in embedded scripting blocks where the readability advantage that justified the format disappears.
  • Maestro drives the app as a black box, so it cannot assert on internal state, mock a network layer from inside the process or inspect application memory the way an in-process framework can.
  • The hosted device catalogue is narrower than dedicated device clouds, so testing against a long tail of specific manufacturer builds and older operating system versions still requires another provider.
  • The project rebranded from mobile.dev to Maestro, so a share of existing tutorials, blog posts and links point at old domains and documentation that no longer match the current tooling.

Pricing, plan by plan

Janus Gateway

Free
  • Open SourceFree
    • Core WebRTC gateway
    • Community support

Maestro

Free
  • LocalFree
    • Free and open source CLI
    • Maestro Studio, Viewer and MCP
    • Runs on your own simulators, emulators and devices
  • Cloud$250/month
    • Per device per month
    • Unlimited hosted test runs
    • Hosted Android, iOS and web devices
  • Enterprise Cloud$undefined/year
    • Quoted
    • SSO and dedicated support
    • Custom contracts

Which should you pick?

Choose Janus Gateway if

  • You need webrtc gateway.
  • You want to start without paying.
  • You work on Linux, MacOS, BSD.
  • You also want media routing.
Janus Gateway review

Choose Maestro if

  • You need yaml test flows.
  • You want to start without paying.
  • You work on iOS, Android, Web, macOS, Linux, Windows.
  • You also want built-in flakiness tolerance.
Maestro review

Questions people ask

Is Janus Gateway or Maestro better?
Neither clearly leads. Janus Gateway starts at Free and Maestro at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Janus Gateway or Maestro?
Janus Gateway starts at Free and Maestro at Free.
Does Janus Gateway or Maestro run on more platforms?
Janus Gateway runs on Linux, MacOS, BSD. Maestro runs on iOS, Android, Web, macOS, Linux, Windows.
Can I use Janus Gateway for free?
Both have a free tier, so you can try either at no cost before committing.
What is Janus Gateway best used for?
Janus Gateway is most often used for api development, api gateway, api testing, api documentation. Of those, api development and api gateway are not what Maestro is typically brought in for.
What can Janus Gateway do that Maestro cannot?
Janus Gateway covers WebRTC Gateway, Media Routing, Video Conferencing, RTP. Maestro covers YAML test flows, Built-in flakiness tolerance, Maestro Studio, Open source CLI.

Answered from the vendors’ own pages

Janus Gateway: How much does Janus Gateway cost?

Janus Gateway has no pricing model; it is a free open-source WebRTC server developed by Meetecho. The general-purpose server is available for download at no cost. There are no subscription tiers or commercial licensing fees.

Source
Maestro: Is Maestro free?

The CLI, Studio and local execution are free and open source. The hosted device cloud is 250 USD per device per month.

Janus Gateway: Is Janus Gateway supported commercially?

Janus Gateway is community-supported open-source software with no official commercial support or SLA from the vendors. While Meetecho developed the project, users must rely on community documentation and forums for assistance.

Source
Maestro: What exactly does per device mean?

It is a concurrency slot. One device runs one test at a time, so suite duration is a function of how many devices you buy.

Maestro: How does it compare with Appium?

Tests are YAML rather than code and flakiness handling is built in, which reduces maintenance, at the cost of lower-level control.

Maestro: Can it test web applications too?

Yes, the cloud offers hosted web devices alongside Android and iOS, though the product centre of gravity is mobile.

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