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PRO3: Grammar, Spelling, Dictionary, AutoCorrect, and AutoType for macOS

Grammarian PRO3 Download

The Perfect Mac Grammar Checker - 64-bit

Ever wonder whether it would have been different if you would have made a better impression with your writing? Writing is your other means of communication besides speaking. This is particularly true these days with email and web sites as the computer and the internet have become the other means of communication. Because of new technology, writing is now a very important daily function. And now communicating with above-average writing skills is becoming the norm. And many people do not have these skills, or many are neglecting these skills.

Grammarian PRO3 X solves this and more, by making you appear scholarly and by making your writing look stylish and professional. Grammarian PRO3 X is the next best thing to having your English teacher sitting right beside you.


New in PRO3

Grammarian's Improved UI

New user interface

We've created a new streamlined user interface to reduce clutter and improve efficiency.

Grammarian's Improved Grammar Check Accuracy

More grammar and spell checking with improved accuracy

Inspire confidence with Grammarian PRO3's improved accuracy and correctness.

Grammar Check: Statistics Analsyis

Dark Mode

Grammarian PRO3 supports Dark Mode.

Grammarian PRO3 grammar check catches homophones

Catch correctly spelled words that are used incorrectly

Use Grammarian PRO3 to catch errors that nothing else can possibly even try, such as words like it's and its, be and bee, except and accept, to, too, two, etc.

Grammarian's Statistics

Sentence Readability/Statistics as you check

Graph comparable sentence-by-sentence reports in real time. Grammarian PRO3 uses a new patent pending trademarked process that gives the best fit suggestions to make your writing more readable.

Grammarian's input method


Compatible with all applications running on macOS.

Grammarian's Improved Performance

Improved performance

PRO3 is the fastest yet.

Grammarian's grammar check automarkup


Automatically mark up the document or a copy for full review before making corrections. This can be printed out as a hard copy.

Grammarian's html checking

Edit Document Clipboard

Edit any section of the Document while checking (Edit Clipboard).


Grammarian PRO3 MmacOS

Full support for macOS 13.0 Ventura

Grammarian PRO3 is 64-bit and works on macOS 10.6.8 to macOS 13.0.

Grammarian Grammar Check

Grammar and spelling

Grammarian PRO3 has the most comprehensive error-check writing and editing capability.

Grammarian PRO3 has over 300 built-in primary spelling and grammar writing rules compared to MS Office's 26 error corrections.


Dictionary and thesaurus

Grammarian PRO3's built-in U.S. English thesaurus offers over two million entries for almost 250,000 words. Entry words contain definitions and parts of speech.

Grammarian PRO3 AutoCorrect

AutoCorrect and AutoType

Grammarian PRO3 automatically corrects 4,000 common typos (for US English) and spelling mistakes.

Let Grammarian PRO3 fix typo mistakes and do the repetitive typing for you. Automatically, instantly, invisibly-often without you even noticing.

Grammar Check: Statistics Analsyis

Statistics Analysis

Use Grammarian PRO3's professional Statistics tools to review your writing in order to target your audience.





System Requirements

macOS 10.6 and later


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