Secure Folder: Incogni Vault

Secure Folder: Incogni Vault is an independently developed iPhone privacy app. It moves private photos, videos, files, documents, scans, and notes into protected on-device storage behind a separate PIN or Face ID, with a decoy vault (second PIN), local intruder alerts for wrong-PIN attempts, alternative disguise icons, and quick lock. No account is required and vault content is not uploaded to a developer-operated cloud.

Website: https://getsecurefolder.com
App Store: https://apps.apple.com/app/secure-folder-incogni-vault/id6755857874
Developer: Mehmet Ali Kisacik (independent developer)