How to Fix "App Integrity Could Not Be Verified" on iPhone

Are you getting the "This app cannot be installed because its integrity could not be verified" error on your iPhone 17 or iPad? In January 2026, with iOS 26.2, this error is usually caused by a revoked developer certificate, an expired provisioning profile, or a conflict with the new "Stolen Device Protection" location security. This updated tutorial covers the "Manual Trust" fix, the "Date & Time Handshake," and how to handle enterprise app certificate revocations in 2026. In this video, we cover: The "Manual Trust" Fix: How to navigate to Settings - General - VPN & Device Management to manually trust the Enterprise or Developer profile after the 2026 security prompt appears. The Date & Time Sync: Why iOS 26.2 will reject app certificates if your clock is even a few seconds off—how to toggle "Set Automatically" to fix the handshake. Certificate Revocation Check: How to tell if Apple has revoked the app’s digital signature and why you might need to wait for the developer to release a "Re-signed" IPA or build. Stolen Device Protection Conflict: Why the new 2026 security layers might block "Untrusted" app installations if you aren't at a Familiar Location (Home/Work), and how to bypass the 1-hour delay. Clearing Safari & System Cache: How to use Settings - Apps - Safari Clear History and Website Data to remove corrupted certificate tokens that prevent the "Trust" button from working. The Airplane Mode Reset: A quick 2026 trick—toggling Airplane Mode for 10 seconds to force the Secure Enclave to re-verify the app’s integrity against Apple’s servers.