Mactracker for Mac lets you look up and compare the specifications of every product ever made by Apple through a straightforward interface. You can browse by category or search for a specific model, and you can even create smart categories to highlight products with certain specifications.
Detailed entries: The entry for each product listed in this app includes detailed information in a variety of categories. And to make accessing the information you're looking for even more convenient, the app features multiple categories of information for each product including General, Memory and Graphics, Connections and Expansions, History, and Notes.
My models: If you find entries you'd like to refer back to over and over again, you can add them to the My Models category. Whether you're researching an item to buy and want to compare models, or you're trying to figure out how best to expand your current system, you'll be able to streamline the research process with this feature.
Lagging updates: There are sometimes delays in adding new products or product updates to this database. Especially if you're looking for an item that just came on the market, you may have to check back a few times before you find it.
Whether you need to know about the specs of various Apple products for personal or business use, you'll find everything you're looking for in this free app. It's set up to make multiple types of searches as straightforward as possible, and information is organized in a very accessible way, so users of any experience levels will have no trouble finding their way around.