WhatTheFont 1.1.1 for Mac was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The most popular version among WhatTheFont for Mac users is 1.1.
The bundle id for this app is com.fluidapp.FluidApp.WhatTheFont. This free Mac app was originally developed by MyFonts. The software lies within Education Tools, more precisely Reference. 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:
WhatTheFont allows you to identify the fonts in a photo or web graphic. WhatTheFont for iPhone connects directly to MyFonts' acclaimed WhatTheFont™ font identification service, which has been helping customers pinpoint mystery fonts at the MyFonts.com web site for 12 years. It works via Wi-Fi or the mobile phone network, so you can get your font fix right there on the spot.
You may want to check out more Mac applications, such as Mayjay, Synapsen or USA-Manual-Mac, which might be similar to WhatTheFont.