"To update the app" means to make changes or improvements to the software on a mobile device or computer program to ensure that it works better, performs new functions, or fixes any problems. Full definition
It's accessible via any device, with the added option of downloading their recently updated apps for android and iphone after you've registered. (mydatingdirectory.net)
It will reach the core apps first, but the third - party developers could also update their apps with smooth animations and transparent blur elements. (windowsphonearea.com)