According to Creighton, this software "burst on the scene September
27, 1985 and was an instant best seller." Unlike competing spell
checkers at the time, you didn't have to quit [Word][1] or
[MacWrite][2] to make use of it.

> MacSpell+ operates as a desk accessory, with its massive 75,000-word
> dictionary residing on a separate disk. The dictionary takes up 399K
> of disk space and is therefore inappropriate for users with a
> single-drive system. Because of its large dictionary, MacSpell+ is
> extremely efficient at catching spelling errors and seldom flags a
> correctly spelled word (it has been known to offer misspelled
> alternatives to correctly spelled words, however). The program does
> a good job of offering corrected spellings, which is important
> because MacSpell+ doesn't allow you to access its dictionary.
> MacSpell+ is the only spelling checker reviewed that doesn't allow
> you to delete words from its dictionary; however, a utility program,
> available at extra cost, allows you to do so.
>  \- Macworld, July 1986

Versions 1.00 and 1.07 are included, as is the dictionary editor add-
on disk.



Later releases included v1.10 and v1.67.

Compatibility
Architecture: 68k

  [1]: http://macintoshgarden.org/apps/microsoft-word-105
  [2]: http://macintoshgarden.org/apps/macwrite