iAt Home is an image editing and screen capture utility designed for Mac. With its help, you can take screenshots with a few clicks, resize pictures, and convert your favorite photos to other image formats.
The application features an intuitive interface, supports multiple input formats, and provides you with various image editing tools. You won't need much graphic design experience in order to handle this utility as it comes with a straightforward interface and provides you with easy-to-configure settings. On its main menu you will find the screenshot options and on the right side of its interface you will see the available editing options (adjust brightness, crop, etc.).
Unfortunately, this program comes with many disadvantages. For starters, it supports a small amount of output formats (PNG, TIFF, JPEG, and IATPROJ). Secondly, the application displays annoying ads when exporting the images (the ads are for another app from the same developer). Furthermore, it might take a while to launch the utility on your Mac.
In my opinion, you should try a different Mac program for taking screenshots and editing images. You can find plenty of other screen capture utilities that provide you with more features and work perfectly.