Most Apple devices are set to update apps automatically, however in some cases, you may need to manually install an update in order to keep watching.
Follow the instructions below for updating the SLING app on your iOS (iPhone, iPad, iPod Touch) device:
- Launch the App Store, then tap Today on the bottom of the screen
- Tap the profile icon at the top of the screen
- Scroll down to see pending updates; tap Update next to the SLING app, or tap Update All to install all available updates