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Top Rated AI Writing Assistant Software with Grammar Check in 2026

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Verified reviewer profile picture

All user reviews are verified by in-house moderators and provider data by our software research team.  Learn more

Last updated: April 2026

Grammar check improves clarity and professionalism in writing by detecting and correcting grammatical errors in real-time. It provides valuable suggestions for sentence structure and word usage, enhancing the overall quality of written communication. Our reviewers in AI writing assistant software rated this feature as important.

3 Best AI Writing Assistant Software with Grammar Check

  • Grammarly Business - Highest rated for grammar check
  • ProWritingAid
  • Writesonic

See other top AI Writing Assistant products with grammar check

How we picked the 3 top rated products

We chose the high-performing solutions on this list based on verified user ratings on our site. Depending on available data, qualifying products either had to be among the most user-reviewed or the most searched-for products in the ai writing assistant software category. They also needed to have sufficient reviews about grammar check, have a minimum user rating of 3 out of 5 for that feature, and show evidence of U.S. market presence. We then added a distinction for the product with the highest rating for grammar check based on our proprietary ratings and reviews. Sponsorship or client status has no influence on the selection of these products, but it may impact the order in which products appear.

Details for the 3 best products

Grammarly Business logo
4.7
(7.2K)
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User insights about the grammar check feature

Reviewers appreciate Grammarly Business's grammar check capabilities for their accuracy and real-time corrections. They find it particularly valuable for non-native English speakers, as it helps improve writing quality and ensures error-free communication. Users highlight its integration with various platforms, making it easy to use across different applications. They also mention that it provides helpful suggestions and explanations for grammatical errors, enhancing their understanding and writing skills. However, some users note occasional inaccuracies and the need for further improvements in specific contexts.
“Grammar Check lets us ensure that all of our correspondence--whether it is with donors, clients, vendors, or board members--is properly worded and formatted. It serves as a safety net for us so that our reputation does not suffer from unprofessional communication. ”
KM

Keith M.

Program Director

“I like that Grammarly Business offers advanced grammar checking capabilities that help enhance the clarity and professionalism of written communication. It provides real-time suggestions for improving writing,”
DR

D'Andre R.

Contributer

AI Writing Assistant key features coverage

Grammarly Business offers 4 out of the 5 key features for AI Writing Assistant software identified by reviewers:

Automated Text Generation
Spell Check4.9
Content Ideas --
Natural Language Processing4.4
Text Editing4.7

Pros and cons based on 7,202 verified reviews

76% of users rated Grammarly Business 5 out of 5 stars, while 0% gave it 1 or 2 stars. To determine these pros and cons insights we analyzed 7,202 reviews and identified the topics where users expressed positive and negative sentiment.

Pros:

Enhancing professionalism

Boosting communication quality

Improving writing quality

Refining writing tone

Polishing email communication

Cons:

High subscription cost

Premium features cost

Inaccurate suggestions

Editing interface issues

Problematic word corrections

See pros and cons details

Pricing

Starting price:$12 per user/per month|Free version:Available|Free trial:Available

Prices may vary depending on the number of users and features.

ProWritingAid logo
4.7
(497)
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User insights about the grammar check feature

Reviewers indicate that ProWritingAid's grammar check is thorough and effective, helping them identify and correct errors in their writing. They appreciate its ability to explain grammatical rules and provide sensible suggestions. Users find it particularly useful for improving their writing quality and maintaining professionalism. However, some mention that it can be slower than other grammar checkers and may occasionally flag false errors. Despite these minor drawbacks, users consider it an indispensable tool for enhancing their writing skills.
“With both my creative writing and studies in linguistics, perfect grammar is paramount. If I forget any grammar rules, ProWritingAid quickly ameliorates my mistakes. ”
LD

Leona D.

Student

“ Grammar checker allows you to check any sentence for grammar mistakes that can ruin the whole document and make the message conveyed to be unclear.”
SN

Sithandazile N.

Accountant

AI Writing Assistant key features coverage

ProWritingAid offers 3 out of the 5 key features for AI Writing Assistant software identified by reviewers:

Automated Text Generation
Spell Check4.8
Content Ideas
Natural Language Processing4.5
Text Editing4.5

Pros and cons based on 497 verified reviews

72% of users rated ProWritingAid 5 out of 5 stars, while 1% gave it 1 or 2 stars. To determine these pros and cons insights we analyzed 497 reviews and identified the topics where users expressed positive and negative sentiment.

Pros:

Enhanced writing skills

Versatile writing enhancement

Seamless software integration

Cons:

Noticeable performance slowdown

Issues with sentence and word management

See pros and cons details

Pricing

Starting price:$20 flat rate/per month|Free version:Available|Free trial:Available

Prices may vary depending on the number of users and features.

Writesonic logo
4.8
(2.1K)
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User insights about the grammar check feature

Reviewers find Writesonic's grammar check feature helpful for ensuring content accuracy and readability. They appreciate its integration with Grammarly, which enhances its effectiveness. Users report that it saves time during the editing process and helps maintain professional writing standards. However, some reviewers mention that it occasionally misses errors and could benefit from further improvements. Overall, users value the grammar check feature for its role in producing polished and error-free content.
“I like that Writesonic's grammar check feature is very comprehensive and user friendly. It quickly and accurately identifies potential grammar mistakes in written text, and provides helpful recommendations on how to fix them. It also allows users to customize the grammar rules they want to be checked against and offers a variety of language settings to accommodate different writing styles.”
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Phebe B.

content writer

“Grammar Check helps in Writesonic because it Ensures Error-Free Content. It Helps users detect and correct grammatical errors, ensuring content is polished and professional. 2. Improves Readability”
FA

Francis A.

Legal secretary

AI Writing Assistant key features coverage

Writesonic offers 5 out of the 5 key features for AI Writing Assistant software identified by reviewers:

Automated Text Generation4.7
Spell Check4.6
Content Ideas4.6
Natural Language Processing4.7
Text Editing4.6

Pros and cons based on 2,102 verified reviews

80% of users rated Writesonic 5 out of 5 stars, while 1% gave it 1 or 2 stars. To determine these pros and cons insights we analyzed 2,102 reviews and identified the topics where users expressed positive and negative sentiment.

Pros:

Efficient social media content

Boosts creativity and ideas

Effective marketing content

Versatile content generation

Streamlined blog writing

Cons:

Restrictive credit system

Inadequate word limits

High costs and restrictions

Inconsistent grammar and spelling check

Limited free trial

See pros and cons details

Pricing

Starting price:$10 flat rate/per month|Free version:Not available|Free trial:Available

Prices may vary depending on the number of users and features.

Other Top Rated AI Writing Assistant Software with Grammar Check in 2026

Grammarly Business logo

Proofreader, plagiarism checker & tone detection solution

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Grammarly Business helps enterprises generate grammatically correct content across email, web pages, social media posts, academic papers & more. AI technology and natural language processing help users improve content readability, word choice, and writing style via real-time suggestions.

Read more about Grammarly Business

Users also considered
Writesonic logo
Category Leaders

Write anything, publish anywhere.

learn more
Writesonic is an AI-powered writing assistant with a mission to empower everyone in the world to write anything and publish anywhere. It's like Canva for writing, with tools that simplify the process of creating, editing, and publishing articles, blog posts, ads, landing pages, and more.

Read more about Writesonic

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Scalenut logo
Category Leaders

AI that powers your entire content lifecycle.

learn more
Scalenut is an all-in-one GEO platform to plan, create, audit, and optimize content while tracking AI-driven visibility in AI search.

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ProWritingAid logo
Category Leaders

Grammar checker, manuscript editor, & writing trainer

learn more
ProWritingAid is a web-based grammar checking, manuscript editing, and personal writing solution designed to help fiction/non-fiction writers, bloggers, students, and content writers improve style, eliminate errors, visualize sentence variations, and more within written content.

Read more about ProWritingAid

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1min.AI logo

Powerful all-in-one AI app

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1min.ai is an all-in-one artificial intelligence (AI) app that offers a wide range of AI features powered by top-notch AI models, including OpenAI ChatGPT, DALLE, Whisper TTS, and many others. With 1min.ai, users can easily and efficiently perform various AI-powered tasks, from text-to-speech to image and video generation.

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Frase logo

Better SEO Content, Faster.

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Frase helps you create better SEO content, faster.

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Simplified logo
Category Leaders

Create, collaborate, and scale all your content creation in

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Simplified helps you design everything, scale your brand, and collaborate with your team like never before. Create stunning designs, videos, and write copy using our ai copywriter tool. Then, get started with our free forever plan.

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TextCortex AI logo

Save 3 work days a month/per employee.

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Transform your business communication and knowledge collaboration through personalizations specifically tailored to your enteprise needs. Craft customized proposals and pitches, targeted email sequences, dedicated AI assistants that will ensure consistent brand voice across all communications.

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Fusebase logo

Collaboration and information management tool

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An all-in-one, AI-powered tool designed to streamline client collaboration with advanced yet intuitive features for real-time collaboration and project management. Optimize daily operations with our advanced FuseBase AI assistant.

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Evercopy logo
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AI-Powered Marketing Agency

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Evercopy helps brands autonomously grow; leveraging AI to plan, operate and optimize cross-channel marketing campaigns in seconds.

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contents.ai logo

AI-powered content generation platform

learn more
Writing well has never been so easy! With the Contents.ai AI Writing Assistant, you can easily and quickly write and improve your texts. Whether you're writing an email, a social media post, a blog article, or translating a text, AI is always ready to help you directly on the webpage!

Read more about contents.ai

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Writeseed logo
Category Leaders

AI writing tool for creating SEO-optimized marketing copies

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Writeseed enables users to write SEO-optimized marketing copy for blogs, Facebook ads, Google Ads, and more to increase clicks, conversions, and sales. It offers unlimited content with no word limit.

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Elephas logo

AI Powered Research Assistant

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AI-powered knowledge assistant for Mac, iPhone & iPad. Chat with your documents, notes & files. Get instant answers with source citations. 20+ formats supported. 100% offline mode. Trusted by 3,000+ professionals. Transform information into insights.

Read more about Elephas

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Linguix logo

Get clean and crisp copy with Linguix

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Check grammar, punctuation and style instantly and in real-time on your favorite sites. Get context-appropriate recommendations and speed up your writing with intelligent snippets. Best for: Marketers and SEO experts, non-native English writers.

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Wordtune logo

AI-powered reading & writing companion

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Wordtune provides AI-driven rewriting suggestions, and summarizing features to enhance productivity.

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Cuppa logo
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Cloud-based AI Writing assistant for marketers.

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Cuppa is an AI-powered content marketing suite that enables users to generate optimized content for various purposes. The platform offers unlimited word generation capabilities and supports multiple content types including blog posts, buyers guides, social media content, and newsletters. Cuppa integrates with popular APIs like OpenAI and Anthropic while providing features such as bulk content generation, SEO optimization tools, and customizable knowledge bases for personalized outputs.

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MailMaestro logo

Your AI email copilot

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MailMaestro uses AI in Gmail and Outlook to help you write easy, stress-free emails by quickly transforming simple prompts into high quality drafts. Boost productivity by freeing up time for things that matter.

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Yaara AI logo

AI-based writing assistant

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Yaara AI is a writing assistant powered by artificial intelligence that enables users to write and publish content across various platforms.

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i-Resonate - most powerful AI content writing platform designed specifically for professionals. Create a powerful brand communication for your product, services or yourself ! Your content is proofread like never before. Now have the confidence on your content quality using our patented AI tools !

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TechOctave logo

AI writing assistant software

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TechOctave is an AI-powered content writing platform that helps businesses create optimized and unique content for websites, blogs, and social media channels. The platform enables managers to research, write, and optimize blog posts, ensuring that the content is unique, engaging, and optimized for search engines.

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Key features for AI Writing Assistant software

Based on GetApp's analysis of verified user reviews collected between July 2021 and August 2024.

  • Automated Text Generation: Reviewers appreciate the automated text generation for its ability to save time, enhance productivity, and generate high-quality, contextually relevant content. 97% of reviewers rated this feature as important or highly important.
  • Spell Check: Reviewers highlight the spell check feature for ensuring error-free, polished writing, which enhances professionalism in business communication. 96% of reviewers rated this feature as important or highly important.
  • Content Ideas: Reviewers find the content ideas feature valuable for sparking creativity and providing diverse, relevant suggestions that help overcome writer's block. 92% of reviewers rated this feature as important or highly important.
  • Natural Language Processing: Users emphasize the importance of natural language processing in understanding context, enhancing communication, and providing tailored content suggestions. 92% of reviewers rated this feature as important or highly important.
  • Text Editing: Reviewers appreciate the text editing feature for its ability to refine content by correcting grammar, improving clarity, and offering stylistic enhancements. 90% of reviewers rated this feature as important or highly important.