Grammar Checkers: Comparisons

 

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The following examples were taken from an online review: Grammarly doesn't do all it claims to do

The test samples:

Legend: Yes = catches and corrects. No = does not catch.

Obvious spellings errors

I definately love cats.

Grammarly - No
After the Deadline - Yes
Ginger - Yes
grammarcheck.net Yes
Grammarian PRO2 - Yes

Less obvious spelling errors

I got a letter form my girlfriend.

Grammarly - No
After the Deadline - No
Ginger - No
grammarcheck.net No
Grammarian PRO2 - Yes

She said she wont ever stop loving me.

Grammarly - No
After the Deadline - No
Ginger - Yes
grammarcheck.net No
Grammarian PRO2 - Yes

Grammar and punctuation mistakes

I don't understand it's point.

Grammarly - Yes
After the Deadline - No
Ginger - Yes
grammarcheck.net No
Grammarian PRO2 - Yes

The term paper had no typo's.

Grammarly - No
After the Deadline - No
Ginger - Yes
grammarcheck.net No
Grammarian PRO2 - No

So the student and me had a talk after class.

Grammarly - No
After the Deadline - No
Ginger - Yes
grammarcheck.net No
Grammarian PRO2 - Yes

I said it was well written, however the argument was confusing.

Grammarly - Partially
After the Deadline - No
Ginger - No
grammarcheck.net No
Grammarian PRO2 - Yes

Commonly confused words

I made a concerted effort.

Grammarly - No
After the Deadline - No
Ginger - No
grammarcheck.net No
Grammarian PRO2 - No

The politicians make it hard for anyone to affect change.

Grammarly - No
After the Deadline - No
Ginger - No
grammarcheck.net No
Grammarian PRO2 - Yes

No one cares about the corral reefs.

Grammarly - No
After the Deadline - No
Ginger - No
grammarcheck.net No
Grammarian PRO2 - Yes

Redundancies

We have various different specialties.

Grammarly - No
After the Deadline - No
Ginger - No
grammarcheck.net No
Grammarian PRO2 - Yes

You and I are equally as good at tennis.

Grammarly - Yes, but falsely flags other errors
After the Deadline - No
Ginger - No
grammarcheck.net No
Grammarian PRO2 - Yes

The general consensus is that you're better.

Grammarly - No, and falsely flags other errors
After the Deadline - No
Ginger - No
grammarcheck.net No
Grammarian PRO2 - Yes

The whole entire world is wrong.

Grammarly - No, and falsely flags other errors
After the Deadline - No
Ginger - No
grammarcheck.net No
Grammarian PRO2 - Yes

Questionable style choices

This was the 11th time it had happened.

Grammarly - No
After the Deadline - No
Ginger - No
grammarcheck.net No
Grammarian PRO2 - Yes

Troublesome compounds

I refuse to cleanup after you.

Grammarly - No
After the Deadline - No
Ginger - No
grammarcheck.net No
Grammarian PRO2 - Yes

We are already to go.

Grammarly - No
After the Deadline - No
Ginger - No
grammarcheck.net No
Grammarian PRO2 - No

Your tardiness has become an every day thing.

Grammarly - Yes
After the Deadline - No
Ginger - No, and falsely flags other errors
grammarcheck.net No
Grammarian PRO2 - Yes

New words, colloquialisms, and nonstandard variants

Next week is a whole nother season.

Grammarly - No
After the Deadline - No
Ginger - No
grammarcheck.net No
Grammarian PRO2 - Yes

Let's hope she can afford preventative care.

Grammarly - No
After the Deadline - No
Ginger - No
grammarcheck.net No
Grammarian PRO2 - Yes

 

Summary

 

Scores:

	Caught	Not Caught
Grammarian PRO2	17	3
Grammarly	4	16
Ginger	4	16
After the Deadline	1	19
grammarcheck.net	1	19

 

 

1. In these tests, Grammarian PRO2 is the leader.

2. The tests show that some of the online checkers are of the same code.

3. Grammarly makes claims of "the most accurate grammar checker in the world." This is a false claim. Knowledgeable unbiased online reviewers catch these claims.

4. The samples are from an unbiased online Grammarly review.

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