# Composal vs Detox

By Composal. Sources reviewed: 2026-10-15.

Detox is tailored to native React Native application tests and can coordinate with app internals. Composal verifies web apps from the browser and explores additional user-facing behavior.

## Composal

Composal sends AI browser agents to use your running web app and check the outcomes you care about. Define journeys as plain-English Scenarios, map existing flows with Discovery, or explore for bugs with Deep Scan. Runs keep recordings and reproduction steps so your team or coding agent can investigate a Finding.

[Verify documentation](https://composal.ai/docs/verify)

## Detox

React Native end-to-end testing

Detox is an open-source end-to-end testing framework for React Native apps. It uses a gray-box approach with access to application internals and provides synchronization for mobile test execution.

[Official product or project documentation](https://wix.github.io/Detox/docs/)

## Where each fits

Choose Detox when your product’s critical surface is a React Native mobile application. Choose Composal when the release includes a web app journey that needs hosted browser Scenarios and exploratory Findings.

## Try this evaluation

Take a cross-platform account journey with shared backend rules. Run Detox against the native flow and Composal against the web flow; compare coverage of the common requirement and how defects are reproduced.

### Coverage

Which user outcomes must this release prove, and which specialist checks must stay in your existing stack?

### Setup

Who prepares accounts, test data, permissions and access to the deployment being tested?

### Evidence

Can the engineer reproduce a reported failure from the recording and steps, without asking the tester to investigate again?

### Ownership

Who updates the checks when the product changes, and can the team review what a passing result actually proves?

## Sources and scope

Prepared by Composal with AI-assisted research using the linked first-party product pages and documentation. These are workflow comparisons, not independent benchmarks or an exhaustive feature inventory. A documented capability is not a guarantee for every plan or environment; validate your own requirements in a trial.

- [Detox](https://wix.github.io/Detox/docs/)
- [Composal Verify](https://composal.ai/docs/verify)
- [Composal Deep Scan](https://composal.ai/product/deep-scan)

No comparative speed, price or accuracy score is claimed here. Product names belong to their respective owners.

## Related comparisons

- [Composal vs TestCafe](https://composal.ai/compare/composal-vs-testcafe.md)
- [Composal vs Nightwatch.js](https://composal.ai/compare/composal-vs-nightwatch.md)
- [Composal vs Playwright](https://composal.ai/compare/composal-vs-playwright.md)

[All comparisons](https://composal.ai/compare.md)