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Lock an app on iPhone

Step-by-step iOS 18 guides to lock or hide 2,548 finance, health, photo, messaging and password apps behind Face ID, Touch ID or your passcode.

Every guide uses the same built-in iOS 18 feature: touch and hold the app, tap Require Face ID, confirm. Each page adds why that particular app is worth locking and the other settings to check.

Other question hubs: Does it track you? · Is it safe? · All apps by category · Data types

Facts on this page come from Apple App Store privacy labels, as reported by the developer. Checked November 2026. How we collect data · Report a correction