> ## Documentation Index
> Fetch the complete documentation index at: https://docs.world.org/llms.txt
> Use this file to discover all available pages before exploring further.

# How to get access

> Install the sandbox World ID app and point your integration at the Sandbox environment.

Getting set up in Sandbox has two parts: install the **sandbox World ID app** on your
test device, and point your **integration** at the Sandbox environment. Both are
covered below.

New here? Start with [What is Sandbox?](/world-id/sandbox/what-is-sandbox) for context.

## 1. Install the sandbox World ID app

The sandbox builds are not published to the App Store or Google Play. You install them
directly using the links below.

### iOS — TestFlight

1. Install [TestFlight](https://apps.apple.com/app/testflight/id899247664) from the
   App Store if you don't have it.
2. Open the public TestFlight link to join the external tester group:
   [testflight.apple.com/join/VZEurhHe](https://testflight.apple.com/join/VZEurhHe)
3. Install the **World ID (Sandbox)** build from TestFlight.

No App Store Connect account or per-email invite is required — the public link admits
you to the external tester group directly.

### Android

The sandbox build is distributed via **Firebase App Distribution**.

1. Open the invite/download link we provide.
2. Follow the link to install the **World ID (Sandbox)** build.

You may be prompted to install the App Tester helper the first time.

<Note>
  Contact your World point of contact to get the current Android links.
</Note>

## 2. Point your integration at Sandbox

1. **Update IDKit** to the latest version.
2. **Set `environment: sandbox`** in your IDKit configuration.

Nothing else is required — the handoff will open the sandbox World ID app and return a
proof to your session over the bridge.

## Things to know

* **Sandbox apps aren't in the app stores.** Because the builds are distributed
  directly to testers, install/store deep links won't route to a store listing the way
  they do in production. Testers install via TestFlight (iOS) or the Android link
  instead — so any journey that depends on a real store install can't be exercised
  exactly as it will be in production.
* **Proofs are non-production.** Identities and proofs issued in Sandbox are for
  integration validation only.
* **Accounts are resettable.** You can delete and recreate accounts freely while
  testing.

## Next step

Once you're installed and pointed at Sandbox, you're ready to run the Selfie Check
integration flows. See [Testing Selfie Check in Sandbox](/world-id/sandbox/testing-selfie-check)
for coverage, critical user journeys, and known limitations.