Downloading Guso 1.0.15 for Mac from the developer's website was possible when we last checked. We cannot confirm if there is a free download of this app available. The actual developer of this free Mac application is Suji. Guso for Mac lies within Lifestyle Tools, more precisely Entertainment. Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe.
From the developer:
Guso is a simple and user-friendly application that allows users to Google-search more efficiently. Guso is a menu icon that lives in your status bar and can be accessible at any time. The app offers “Google Suggestions” and auto-correction for a smoother and more efficient search.
You may want to check out more software for Mac, such as Rhyme Genie, Cuelux or minutor, which might be related to Guso.