xAI has released a new update for its Grok app, version 1.1.47, now available on the App Store. This update includes bug fixes and major improvements to Grok Imagine, the app's image generation feature. Grok, described by xAI as the "World’s Smartest AI Advisor," continues to gain traction as the fastest growing AI on Android and iOS platforms. The release of Grok-4 has driven substantial usage growth, particularly noted in July, accelerating the app's expansion. Industry observers recognize Grok as an underrated AI tool that is rapidly improving and expanding its user base.