An app can receive a notification when a screenshot has been taken, so it could theoretically edit the last image saved to Photos. https://developer.apple.com/

An app can receive a notification when a screenshot has been taken, so it could theoretically edit the last image saved to Photos. https://developer.apple.com/forums/thread/93362 https://developer.apple.com/forums/thread/93362 However, I'm not really sure that would work, since I don't think that would be able to bypass iOS prompting you to give that app access to your photo library. There's a third-party "ScreenShieldKit" which claims to be able to do this: https://screenshieldkit.com https://screenshieldkit.com So, apparently it's technically possible to block this, but AFAIK, Apple doesn't provide an equivalent to Android's FLAG_SECURE ("treat the content of the window as secure, preventing it from appearing in screenshots or from being viewed on non-secure displays"). DRM-protected video can't be recorded (or screenshotted) in iOS, but as another comment noted, that seems to be a video-specific thing.