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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? for context.

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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.

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iOS — TestFlight

  1. Install TestFlight 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
  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.

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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.
Contact your World point of contact to get the current Android links.

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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.

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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.

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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 for coverage, critical user journeys, and known limitations.