Sandbox Testing

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What Is Sandbox Testing?

Sandbox testing lets you test in-app purchases without using real money. It’s an essential step before launching your app.

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Create a Sandbox Account

1. Go to App Store Connect
2. Navigate to Users and Access > Sandbox Testers
3. Click the + button
4. Enter your email address (must be verifiable) You could for instance just use your email with “sandbox” in it (e.g. “steffen+sandbox@buildwithai.io”)
5. Fill in the required fields and select a region
6. Click Save

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Testing on Your Device

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Step 1: Install Your App

Install your development build on your iOS device.

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Step 2: Add Sandbox Account to Settings

Add your sandbox account on the device so it’s ready when you integrate purchases:

• iOS 13-17: Settings > App Store > Sandbox Account
• iOS 18+: Settings > Developer > Sandbox Apple Account

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Important Things to Know

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Subscription Testing

Subscription renewals are accelerated in sandbox mode:

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Common Issues

• Slow response: Sandbox purchases may take up to 15 seconds. This is normal.
• Price differences: Prices may not match what you set in App Store Connect. Focus on testing the purchase flow, not the exact prices.

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Reset Your Testing Environment

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To test as a new user:

1. Uninstall and reinstall your app
2. Create a new sandbox account if needed

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TestFlight Testing

In TestFlight, all subscription renewals happen once per day regardless of the original duration.

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Need More Help?

See Apple’s official documentation for advanced topics.