Previewed at WWDC, launching in the fall.
Confide Introducing New 'ScreenShield' SDK That Will Allow Developers to 'Screenshot-Proof' Their Apps
Called ScreenShieldKit, the new SDK prevents screenshots, screen recording, QuickTime recording, Screen mirroring, Xcode screenshots, and viewing an app's contents in the App Switcher on both the iPhone and the iPad.
There is no dedicated API to stop screenshots from being taken in iOS like there is in Android, so ScreenShieldKit is using a whiteout feature instead. In an app that has ScreenShieldKit enabled, screenshots taken are a blank aside from a single status bar at the top. The same goes for recordings.
Apple does have a feature that prevents screenshots from being taken in apps that stream video content from a server, such as Netflix and iTunes, but since Confide does not stream from a server, Confide's developers tell us it took quite a bit of tweaking and work to develop ScreenShieldKit.
The Confide team used a "collection of technologies" to get ScreenShieldKit to work, and they believe they're the first to come up with this screenshot proofing concept on iOS devices. ScreenShieldKit uses only public APIs, and no private APIs, and it's a seamless experience for end users.
The current version of the Confide confidential messaging app already protects against screenshots by revealing just one line of text at a time, but the new ScreenShield feature is being implemented into the app to provide even more robust screenshot protection.
In the Confide app, ScreenShield will make it so any screenshot captured will show no message content. Confide also already uses end-to-end encryption and erases messages after they've been viewed to provide a secure messaging platform.
While Confide's ScreenShield feature will prevent on-device screenshots, there is, of course, no way to stop people from taking a photo of an iPhone's screen with a secondary device. Still, for on-device use, it's a solid solution that many developers may be interested in adopting.
Confide is offering the ScreenShieldKit feature to developers, with more information available on the ScreenShieldKit website.
The Confide app, with ScreenShield built in, can be downloaded from the App Store for free. [Direct Link]