Download of MacBoot 1.0 for Mac was available from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. This free Mac app is an intellectual property of Infinity-to-the-Power-of-Infinity. According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. The software lies within System Tools, more precisely General.
From the developer:
MacBoot is an application for changing the gray apple shown during system startup to any image or icon. It is also possible to change the background. The program can use boot images created by others and made available from sites such as ResExcellence, but it is also very simple to create your own using drag and drop.
You may want to check out more software for Mac, such as Notifications Scripting or IBM Performance Analysis Suite, which might be related to MacBoot.