SimpleText is the native text editor for the Apple classic Mac OS. SimpleText allows text editing and text formatting (underline, italic, bold, etc.), fonts, and sizes. It was developed to integrate the features included in the different versions of TeachText that were created by various software development groups within Apple Computer.
It can be considered similar to Windows' WordPad application. In later versions, it also gained additional read-only display capabilities for PICT files, as well as other Mac OS built-in formats like Quickdraw GX and QTIF, 3DMF and even QuickTime movies. Like TeachText, SimpleText was also limited to only 32 kB of text in a document,