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.
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