--- title: "Building the Passport App for iOS" slug: "dpo-customize-passport-app-for-ios-build-in-xcode" updated: 2026-10-27T20:13:21Z published: 2026-10-27T20:13:21Z canonical: "docs.onespan.com/dpo-customize-passport-app-for-ios-build-in-xcode" --- > ## Documentation Index > Fetch the complete documentation index at: https://docs.onespan.com/llms.txt > Use this file to discover all available pages before exploring further. # Building the Passport App for iOS Before building a Passport App, you must have an Apple Developer account. Without this account, you cannot build and deploy Passport App. To build Passport App: 1. Launch the Passport App in Xcode by double-clicking the NokNokPassport.xcodeproj file. 2. Connect a Touch ID or Face ID-capable device to your build machine. 3. Select the connected iOS device as the target. 4. Click ► to build and run on the device. Apple enforces that apps in its ecosystem must have a unique bundle ID. Since your version of Passport App is different from the Digipass version, you must provision a bundle ID. See the Apple documentation.