_:nca3eb8cd574241ad843d7c81e329a074xb0
<http://schema.org/abstract>
"iOS (originally iPhone OS) is a mobile operating system owned by Apple. Introduced in 2007 for the iPhone, it was later merged with other Apple products, such as iPod Touch and iPad. There are more than 1 million apps available for download, one of them being Fur Fighters: Viggo on Glass. Due to system updates, some versions of Viggo on Glass are not compatible with certain versions of the iOS, resulting in an immediate closure of the game."
<https://furfighters.fandom.com/wiki/IOS>