PerfectIt vs Grammarly

by Gralio Feb 25, 2025

PerfectIt and Grammarly cater to different writing needs. PerfectIt is ideal for ensuring consistent, style-guide compliant documents, particularly in formal settings. Grammarly offers broader writing support for grammar, clarity, and tone across various platforms, making it suitable for everyday writing tasks.

At Gralio.ai we help to simplify your decision-making process by offering detailed, side-by-side software comparisons like this one, to help you confidently choose the tool that aligns with your business goals.

This comparison was created by analysing 3138 reviews and 60 websites, saving 17 hours, 56 minutes of reading.

PerfectIt

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Grammarly

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About

PerfectIt is a proofreading software designed for professionals who need polished, consistent documents. It catches errors in consistency, style, and terminology that regular grammar checkers miss. PerfectIt is highly customizable, letting you enforce your organization's specific style guide. Used by editors, writers, and professionals in various fields, PerfectIt helps ensure your documents make the best possible impression.

Grammarly is an AI-powered writing assistant that helps improve your writing across various applications. It checks for grammar, spelling, punctuation, clarity, and tone. The software provides personalized suggestions based on your writing style and the intended audience. Grammarly integrates seamlessly with platforms like email, social media, and document editors. With a focus on privacy, Grammarly ensures your data remains secure. Besides individual plans, Grammarly offers solutions for businesses and educational institutions.

Summary

Main difference

PerfectIt is a specialized proofreading tool focusing on consistency and style guide adherence, particularly valuable for formal documents and regulated industries. Grammarly is a broader writing assistant emphasizing grammar, clarity, and tone, suitable for everyday writing and diverse content creation.

Relative strengths of PerfectIt (compared to Grammarly)

Exhaustive consistency checks: PerfectIt excels at catching inconsistencies in style, terminology, and numbering that general grammar checkers often miss.
Customizable style guides: PerfectIt allows for granular control over style rules, aligning perfectly with specific organizational or industry standards.
Strong integration with Microsoft Word: PerfectIt's seamless integration with Word streamlines the proofreading workflow for heavy Word users.

Relative weaknesses of PerfectIt (compared to Grammarly)

Limited platform compatibility: PerfectIt's focus on Word limits its use on other platforms and operating systems.
Steeper learning curve: Mastering PerfectIt's advanced features and customization options requires more time and effort.
Narrower focus: PerfectIt primarily focuses on consistency and style, lacking the broader writing assistance features of Grammarly.

Who is using PerfectIt and Grammarly?

No data

Jake Ward

SEO expert; 150K LinkedIn followers

Connor Gillivan

SEO expert; 7x Founder (Exit in 2019)

Anna York

Digital Marketing Consultant at Anna York Consulting

Who should use PerfectIt VS. Grammarly

PerfectIt is a must-have for professionals seeking polished, consistent documents. It excels at catching inconsistencies often missed by standard grammar checkers, ensuring your work makes a strong impression. Users praise its thoroughness and time-saving automation, but some Mac users have reported stability issues.

Grammarly is an AI-powered writing assistant ideal for businesses and individuals looking to enhance their written content. It offers grammar and spell checking, tone adjustments, and clarity improvements. Users praise its seamless integrations and personalized suggestions. However, some find the pricing high and experience occasional performance issues.

PerfectIt is best suited for small companies and individual professionals.
Ideal for media, marketing, and writing-intensive businesses.

Best for small to enterprise businesses seeking efficient writing solutions.
Ideal for Education, Marketing, Media, Software, Finance, and E-commerce.

PerfectIt and Grammarly features

Supported

Partially supported

Not supported

Type in the name of the feature or in your own words tell us what you need

Content rewriting

Not supported

PerfectIt does not rewrite content in different styles.

Partially supported

Grammarly helps rewrite sentences and adjust tone but does not fully rewrite content in different styles.
Paragraph rewrites

Not supported

PerfectIt does not rewrite paragraphs to improve clarity or conciseness.

Supported

Grammarly supports rewriting paragraphs using its AI rewording and sentence rewriting tools.
Structure suggestions

Not supported

PerfectIt does not offer structure suggestions.

Supported

Grammarly supports structuring writing through clarity and advanced suggestions, and customizable writing preferences.
Grammar check

Not supported

Grammar checking is not supported.

Supported

Grammarly offers comprehensive grammar checking, including real-time feedback and AI-powered suggestions.
Spell check

Supported

PerfectIt checks spelling and suggests corrections, but its focus is broader consistency.

Supported

Grammarly supports spell checking and suggests corrections.
Spelling check

Supported

PerfectIt offers various spelling checks, including preferred spellings and common typos.

Supported

Grammarly supports spelling check across its platforms.

Qualities

Value and Pricing Transparency

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Customer Service

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Ease of Use

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Reliability and Performance

No data

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Ease of Implementation

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Scalability

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PerfectIt and Grammarly Pricing

No data

See full Pricing page

Grammarly offers different plans for individual users and businesses of all sizes. Grammarly provides various writing assistance features like tone suggestions, sentence rewrites, plagiarism detection, and more.

Plans

See full Pricing page

PerfectIt and Grammarly review insights

Users love

Thorough consistency checks, catching inconsistencies in hyphenation, capitalization, spelling, and numbering.
Time-saving automation of mechanical editing tasks.
Customizable style sheets for different clients and style guides.
Integration with the Chicago Manual of Style (CMOS).
Helpful and responsive customer support.

Widely praised for its accurate grammar and spell-checking capabilities.
Seamless integration with various platforms and applications.
Personalized writing suggestions based on tone and style preferences.
AI writing assistance helps refine sentences and generate content quickly.

Users dislike

Limited functionality for Mac users, especially regarding customization and style sheets.
Software instability on Macs, including freezing, crashing, and hanging.
Overzealous serial comma detection.
Slow processing speed, particularly for large documents.
Difficulty customizing style sheets and understanding advanced features.

Slow loading times and occasional freezing reported by some users.
High pricing, especially for premium features, is a common complaint.
AI-powered suggestions sometimes change the meaning or tone in undesirable ways.
Occasional glitches with real-time suggestions and corrections.

PerfectIt and Grammarly Ratings

G2

4.8/5

(164)
Capterra

4.9/5

(346)

G2

4.7/5

(2517)
TrustPilot

4.5/5

(119)
Glassdoor

3.9/5

(265)

Company health

Employee growth

No change in the last year

18% increase in the last year

Web traffic

68% increase in the last quarter

21% decrease in the last quarter

Financing

No data

July 2021 - $400M

How does PerfectIt's customization compare to Grammarly's broader platform integration?

PerfectIt excels in customization, allowing users to tailor the software to specific style guides, whereas Grammarly focuses on broader platform integrations, seamlessly working across various applications like email and social media. While PerfectIt allows for deep customization within its own environment, Grammarly prioritizes accessibility and ease of use across different platforms.

Which product best handles consistent style guide enforcement in long documents?

PerfectIt is the better choice for consistent style guide enforcement in long documents. Its core functionality is focused on ensuring stylistic consistency and catching errors often missed by standard grammar checkers. While Grammarly is a strong general writing tool, PerfectIt's specialized features and customizable style sheets make it more suitable for maintaining a uniform style throughout lengthy documents.

What are the advantages of PerfectIt?

PerfectIt excels at catching inconsistencies in style, formatting, and terminology that typical grammar checkers miss. Its customizable style sheets allow for enforcement of specific guidelines, making it ideal for organizations with strict style requirements. Users appreciate its thoroughness and automation of tedious editing tasks.

What are the disadvantages of PerfectIt?

PerfectIt has some disadvantages based on user feedback. It suffers from performance issues on Macs, including instability, freezing, and crashing. Customizing stylesheets can be difficult, and the advanced features are not always easy to understand. Finally, some users find its serial comma detection to be overzealous and its processing speed slow for large documents.

Alternatives to PerfectIt and Grammarly

ProWritingAid

ProWritingAid is a writing enhancement tool that helps businesses and individuals improve their writing quality and originality. It offers grammar and style checking, along with a plagiarism checker that compares your text against a vast database. ProWritingAid integrates with popular platforms like Microsoft Word, Google Docs, and web browsers, making it accessible wherever you write. Its customizable features allow you to tailor the software to your specific writing style and needs.

PerfectTense

PerfectTense is an AI-powered software that helps users improve their writing by identifying and correcting spelling and grammar errors. It integrates seamlessly into websites and platforms, offering users an embedded proofreading tool without requiring individual downloads or sign-ups. This makes it ideal for mid-sized companies in any industry where clear and error-free communication is essential. PerfectTense aims to enhance team communication, elevate the quality of written content, and improve the overall user experience.

Narrato Workspace

Narrato Workspace is an all-in-one platform designed to streamline content creation and management for marketing teams of all sizes. It features AI-powered tools for generating ideas, writing and optimizing content, as well as project management features like calendars, workflows and team collaboration tools. Narrato Workspace integrates with popular platforms like WordPress and social media, allowing you to publish content directly from the platform. It aims to increase content production speed, improve content quality and simplify the overall content creation process.

QuillBot

QuillBot is an AI-powered writing platform designed to help users improve their writing and boost productivity. It offers a suite of tools including a paraphraser, grammar checker, plagiarism checker, summarizer, and citation generator. QuillBot integrates with platforms like Google Chrome and aims to make writing clearer, faster, and more efficient.

Hemingway

Hemingway is a writing enhancement tool that helps make your writing clearer and more concise. It analyzes your text and highlights overly long or complex sentences, adverbs, passive voice, and words with simpler alternatives. This helps you identify areas to simplify your writing, making it easier for your audience to understand. Hemingway offers a free basic version and a paid "Plus" version with additional features such as grammar and spelling checks, as well as AI-powered rewriting suggestions.

DALL·E 2

DALL·E 2 is an AI system from OpenAI that generates images from text descriptions. You can create realistic images, expand pictures beyond their original borders, and make edits to existing images by simply describing the changes you want. DALL·E 2 understands shadows, reflections, and textures for realistic results. You can also use it to generate variations of an image based on the original.

Page co-authored by

Michal Kaczor

CEO at Gralio

Michal has worked at startups for many years and writes about topics relating to software selection and IT management. As a former consultant for Bain, a business advisory company, he also knows how to understand needs of any business and find solutions to its problems.

Tymon Terlikiewicz

CTO at Gralio

Tymon is a seasoned CTO who loves finding the perfect tools for any task. He recently headed up the tech department at Batmaid, a well-known Swiss company, where he managed about 60 software purchases, including CX, HR, Payroll, Marketing automation and various developer tools.

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