[ Pricing ]

Free

Full simulator, CLI, and desktop appFree for personal, non-commercial useDetox and Maestro test driversLocal screenshots and recordings

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Pay as you go

$10/top-up

$5 free to start

License for CIRemote simulatorsGitHub playable build on each commitGitHub preview flows on each PRCloud recordings

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Enterprise

Custom

Unlimited team sizeEmbed the simulatorSSO / SAML and security reviewSLA and account management

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API

Create keys in Billing on rnx or Contrast. Each key belongs to the account, has scopes, and expires.

GET/api/v1/buildslatest GitHub builds by repo, branch, and platform

POST/api/v1/previewspublish a hosted preview from any CI

POST/api/v1/test-runsrecord a test run with its full trace

REST API reference →

Usage

No subscription. Verify your account for $5 of free usage, then top up your balance in $10 increments. The free grant draws first, then prepaid balance.

Build or share upload$0.10

AI walkthrough$0.20

Test suite$0.15 per 20m

Preview retention90 days

Live preview builds on every commit

Every push becomes a build anyone can open in a browser. No install. Works in modern browsers on iOS and Android.

AI walkthroughs on every PR

Every pull request gets a comment with a video walkthrough and a live demo viewers can take over.

Remote simulators

rnx ios --remote runs your app on a hosted iOS simulator instead of your machine. People and agents drive it with the same rnx commands and SDK, from a laptop or a CI job.

Test traces

Recordings, steps, logs, React tree, and a performance profile on one shareable page. Maestro and Detox run unmodified.

Instant share links

Share recordings, screenshots, and demos as a link. No export, no upload step.

Desktop recording

Record a session in the rnx desktop app and get a hosted link.

Steerable demos

A walkthrough is a live demo. Viewers can take over at any point.

GitHub app

Install once per org and pick repos.

Dashboard

Builds and previews by repo, branch, and PR.

Screenshot decks

Hosted screenshots at every required device size.

3D demos

3D mode is free. Hosting the result is metered.

On demand

Run walkthroughs from the dashboard any time.

CI API keys

Keys belong to the account, with scopes and an expiration.

Team dashboard with builds and previews organized by repo and PR

A React Native app posed on the 3D device stage

[ FAQ ]

Is it really running my actual React Native code?

Yes. rnx runs your real Metro bundle without a plugin. It provides browser implementations for native modules used by Reanimated, Gesture Handler, Screens, FlashList, and Skia. Support varies by API and platform; check the compatibility explorer for package details and measured results.Reanimated and Gesture Handler run off-thread, so animations, scrolls, and gestures stay smooth even when JS is busy.

Is it free?

rnx is free for personal use. The browser simulator for iOS and Android, the React Native-aware CLI, the desktop app, and the Detox and Maestro test drivers all run on your machine at no cost for personal, non-commercial projects.Commercial use needs a paid account after a 30-day evaluation. Embedding the simulator in your own product, docs, or site needs an Enterprise agreement.

What do I pay for?

There is no subscription. Verify your account and the first $5 of usage is free; after that you top up your balance in $10 increments and pay only for what you run. A funded account carries the commercial-use license and unlocks shareable demo links, automatic PR builds, and AI walkthroughs.Shareable demos are $0.10 each and PR previews are $0.20 each. Anything you record is kept for 90 days.

How do PR previews work?

On each pull request, rnx builds an interactive preview of your app. An AI agent records a walkthrough of what changed, as a video and as a live app, in minutes.It is 10x cheaper and faster than a native build, available for later reference, loads in seconds, and stays responsive because it does not stream a VM.

Can I use it in CI/CD?

Yes. A funded account issues API keys for local and CI runs. Detox and Maestro flows run in CI as cheaply as a plain Linux job, with no build step and no simulator boot.

Do I need a Mac?

No. rnx runs in any modern browser, and as a desktop app on Mac, Linux, and Windows. You do not need Xcode, Java, or a cloud Mac to stream.