# Grammarly, Ludwig vs Writesonic Comparison | | Grammarly | Ludwig | Writesonic | |---|---|---|---| | **Star Rating** | 4.7 out of 5 | 4.3 out of 5 | 4.7 out of 5 | | **Total Reviews** | 13,696 | 14 | 2,111 | | **Largest Market Segment** | Small-Business (51.9% of reviews) | Small-Business (57.1% of reviews) | Small-Business (91.5% of reviews) | | **Entry Level Price** | No pricing available | No pricing available | Free Trial 1 User | --- ## Top Pros & Cons ### Grammarly Pros: - Writing Improvement (2173 reviews) - Ease of Use (1765 reviews) Cons: - Incorrect Corrections (620 reviews) - Inaccuracy (559 reviews) ### Ludwig **Not enough data** ### Writesonic Pros: - Content Creation (46 reviews) - Ease of Use (38 reviews) Cons: - Expensive (20 reviews) - High Costs (17 reviews) --- ## Ratings Comparison | Rating | Grammarly | Ludwig | Writesonic | |---|---|---|---| | **Meets Requirements** | 9.2 (10403 reviews) | 9.2 (10 reviews) | 9.2 (1275 reviews) | | **Ease of Use** | 9.4 (10675 reviews) | 9.7 (10 reviews) | 9.4 (1302 reviews) | | **Ease of Setup** | 9.4 (4570 reviews) | Not enough data | 9.4 (473 reviews) | | **Ease of Admin** | 9.3 (2694 reviews) | Not enough data | 9.3 (427 reviews) | | **Quality of Support** | 9.0 (6757 reviews) | 8.5 (8 reviews) | 9.0 (1056 reviews) | | **Has the product been a good partner in doing business?** | 9.4 (2652 reviews) | Not enough data | 9.3 (401 reviews) | | **Product Direction (% positive)** | 9.4 (10682 reviews) | 7.7 (10 reviews) | 9.1 (1085 reviews) | --- ## Pricing ### Grammarly #### Entry-Level Pricing No pricing available #### Free Trial Yes ### Ludwig #### Entry-Level Pricing No pricing available #### Free Trial No information available ### Writesonic #### Entry-Level Pricing Plan: Free Trial Price: Free Trial 1 User Description: Experience all AI SEO and Content features with no commitment. Note: AI search visibility (GEO) is included in Professional and higher plans only. Key Features: - 1 user included - 1 project included - 3 AI Agent generations (one-time) [Browse all 4 editions](https://www.g2.com/products/writesonic/pricing) #### Free Trial Yes --- ## Features Comparison By Category ### AI Writing Assistant | Product | Score | Reviews | |---|---|---| | **Grammarly** | 8.5/10 | 6881 | | **Ludwig** | N/A | N/A | | **Writesonic** | 8.8/10 | 1049 | #### Grammar | Feature | Grammarly | Ludwig | Writesonic | |---|---|---|---| | **Grammar Check** | 9.6 (5487 reviews) | Not enough data | 8.9 (818 reviews) | | **Tone Check** | 9.0 (5237 reviews) | Not enough data | 8.8 (822 reviews) | | **Sentence Formatting** | 9.2 (5282 reviews) | Not enough data | 8.9 (871 reviews) | #### Formatting | Feature | Grammarly | Ludwig | Writesonic | |---|---|---|---| | **Plagiarism Check** | 8.3 (4477 reviews) | Not enough data | 8.7 (701 reviews) | | **Style Editor** | 8.7 (4790 reviews) | Not enough data | 8.8 (333 reviews) | | **Citation Finder** | 7.8 (4109 reviews) | Not enough data | 8.5 (291 reviews) | #### Content | Feature | Grammarly | Ludwig | Writesonic | |---|---|---|---| | **Idea Recommendation** | 8.5 (4560 reviews) | Not enough data | 9.1 (865 reviews) | | **Content Generation** | 8.3 (4322 reviews) | Not enough data | 9.1 (903 reviews) | | **Form Generation** | 7.9 (4034 reviews) | Not enough data | 8.8 (684 reviews) | #### Product Type | Feature | Grammarly | Ludwig | Writesonic | |---|---|---|---| | **Standalone Application** | 8.5 (4370 reviews) | Not enough data | 8.9 (718 reviews) | | **Plugin** | 8.7 (4601 reviews) | Not enough data | 8.4 (559 reviews) | #### Generative AI | Feature | Grammarly | Ludwig | Writesonic | |---|---|---|---| | **AI Text Generation** | 8.1 (3115 reviews) | Not enough data | 8.8 (128 reviews) | | **AI Text Summarization** | 8.1 (3079 reviews) | Not enough data | 8.9 (121 reviews) | ### SEO Tools | Product | Score | Reviews | |---|---|---| | **Grammarly** | N/A | N/A | | **Ludwig** | N/A | N/A | | **Writesonic** | 8.2/10 | 76 | #### SEO Auditing & Monitoring | Feature | Grammarly | Ludwig | Writesonic | |---|---|---|---| | **SEO Alerting** | Not enough data | Not enough data | 8.5 (37 reviews) | | **SEO Auditing** | Not enough data | Not enough data | 8.9 (40 reviews) | | **SEO Change Tracking** | Not enough data | Not enough data | 8.8 (38 reviews) | | **Technical SEO** | Not enough data | Not enough data | 8.5 (35 reviews) | #### Agentic AI - SEO Tools | Feature | Grammarly | Ludwig | Writesonic | |---|---|---|---| | **Autonomous Task Execution** | Not enough data | Not enough data | 7.1 (8 reviews) | | **Multi-step Planning** | Not enough data | Not enough data | 7.8 (9 reviews) | | **Cross-system Integration** | Not enough data | Not enough data | 7.1 (8 reviews) | | **Adaptive Learning** | Not enough data | Not enough data | 8.3 (9 reviews) | | **Natural Language Interaction** | Not enough data | Not enough data | 8.1 (9 reviews) | | **Proactive Assistance** | Not enough data | Not enough data | 8.0 (9 reviews) | | **Decision Making** | Not enough data | Not enough data | 8.3 (9 reviews) | #### SEO Content & Rankings | Feature | Grammarly | Ludwig | Writesonic | |---|---|---|---| | **Link Building** | Not enough data | Not enough data | 8.1 (34 reviews) | | **Keyword Research** | Not enough data | Not enough data | 8.4 (37 reviews) | | **SERP Rank Tracking** | Not enough data | Not enough data | 8.4 (34 reviews) | | **Localization** | Not enough data | Not enough data | 8.1 (35 reviews) | | **Content Insights** | Not enough data | Not enough data | 8.4 (38 reviews) | #### SEO Reporting | Feature | Grammarly | Ludwig | Writesonic | |---|---|---|---| | **Competitor Analysis** | Not enough data | Not enough data | 8.1 (36 reviews) | | **Data Visualization** | Not enough data | Not enough data | 7.6 (33 reviews) | | **Custom Reports** | Not enough data | Not enough data | 7.6 (33 reviews) | | **White Label** | Not enough data | Not enough data | Feature Not Available | #### Generative AI | Feature | Grammarly | Ludwig | Writesonic | |---|---|---|---| | **AI Text Generation** | Not enough data | Not enough data | 9.1 (25 reviews) | | **AI Text Summarization** | Not enough data | Not enough data | 8.7 (25 reviews) | ### Plagiarism Checker | Product | Score | Reviews | |---|---|---| | **Grammarly** | 8.4/10 | 1938 | | **Ludwig** | N/A | N/A | | **Writesonic** | N/A | N/A | #### Database Type | Feature | Grammarly | Ludwig | Writesonic | |---|---|---|---| | **Custom Database** | 8.2 (1226 reviews) | Not enough data | Not enough data | | **Internet Content** | 8.6 (1297 reviews) | Not enough data | Not enough data | | **Proprietary Database** | 8.2 (1206 reviews) | Not enough data | Not enough data | | **Academic Databases** | 8.2 (1224 reviews) | Not enough data | Not enough data | #### Content Features | Feature | Grammarly | Ludwig | Writesonic | |---|---|---|---| | **Private Cloud** | 8.0 (1198 reviews) | Not enough data | Not enough data | | **CMS Integrations** | 8.0 (1179 reviews) | Not enough data | Not enough data | | **Itemized Reporting** | 8.1 (1197 reviews) | Not enough data | Not enough data | | **Real-Time Evaluation** | 8.8 (1315 reviews) | Not enough data | Not enough data | #### Software Type | Feature | Grammarly | Ludwig | Writesonic | |---|---|---|---| | **Browser Application** | 8.9 (1364 reviews) | Not enough data | Not enough data | | **Desktop Application** | 8.8 (1340 reviews) | Not enough data | Not enough data | ### Proofreading | Product | Score | Reviews | |---|---|---| | **Grammarly** | 8.4/10 | 9051 | | **Ludwig** | N/A | N/A | | **Writesonic** | N/A | N/A | #### Grammar Tools | Feature | Grammarly | Ludwig | Writesonic | |---|---|---|---| | **Vocabulary Recommendations** | 8.9 (7594 reviews) | Not enough data | Not enough data | | **Sentence Rephrasing** | 8.8 (7690 reviews) | Not enough data | Not enough data | | **Dictionary** | 8.8 (7288 reviews) | Not enough data | Not enough data | #### Writing Support | Feature | Grammarly | Ludwig | Writesonic | |---|---|---|---| | **Text Reader** | 8.2 (6603 reviews) | Not enough data | Not enough data | | **Machine Translation** | 7.7 (5935 reviews) | Not enough data | Not enough data | | **Custom Style Guides** | 8.2 (6430 reviews) | Not enough data | Not enough data | | **Reporting** | 8.2 (6243 reviews) | Not enough data | Not enough data | #### Software Availability | Feature | Grammarly | Ludwig | Writesonic | |---|---|---|---| | **Word Processor** | 8.8 (6904 reviews) | Not enough data | Not enough data | | **Integrations** | 8.5 (6770 reviews) | Not enough data | Not enough data | | **Browser Plug-In** | 8.8 (7200 reviews) | Not enough data | Not enough data | #### Generative AI | Feature | Grammarly | Ludwig | Writesonic | |---|---|---|---| | **AI Text Generation** | 7.8 (4993 reviews) | Not enough data | Not enough data | | **AI Text-to-Speech** | Feature Not Available | Not enough data | Not enough data | | **AI Text Summarization** | 7.8 (4950 reviews) | Not enough data | Not enough data | ### Answer Engine Optimization (AEO) | Product | Score | Reviews | |---|---|---| | **Grammarly** | N/A | N/A | | **Ludwig** | N/A | N/A | | **Writesonic** | 9.4/10 | 30 | #### AI Visibility & Tracking | Feature | Grammarly | Ludwig | Writesonic | |---|---|---|---| | **AI Mention Tracking** | Not enough data | Not enough data | 7.7 (11 reviews) | | **AI Search Ranking Insights** | Not enough data | Not enough data | 8.8 (14 reviews) | #### Sentiment & Brand Analysis | Feature | Grammarly | Ludwig | Writesonic | |---|---|---|---| | **AI Sentiment Monitoring** | Not enough data | Not enough data | 7.8 (9 reviews) | | **AI Hallucination Detection** | Not enough data | Not enough data | 6.7 (9 reviews) | #### Competitive Benchmarking | Feature | Grammarly | Ludwig | Writesonic | |---|---|---|---| | **Industry AI Sentiment Benchmarking** | Not enough data | Not enough data | 7.6 (9 reviews) | | **Competitor AI Presence Comparison** | Not enough data | Not enough data | 7.0 (11 reviews) | #### AI Content Optimization | Feature | Grammarly | Ludwig | Writesonic | |---|---|---|---| | **Semantic Optimization for AI Models** | Not enough data | Not enough data | 7.6 (9 reviews) | | **AI-Driven Content Recommendations** | Not enough data | Not enough data | 8.2 (12 reviews) | #### Reporting & Alerts | Feature | Grammarly | Ludwig | Writesonic | |---|---|---|---| | **Real-Time AI Mention Alerts** | Not enough data | Not enough data | 7.8 (9 reviews) | | **AI Visibility Reporting** | Not enough data | Not enough data | 7.7 (10 reviews) | ### AI Search Visibility Optimization Tools | Product | Score | Reviews | |---|---|---| | **Grammarly** | N/A | N/A | | **Ludwig** | N/A | N/A | | **Writesonic** | N/A | N/A | #### AI Content Structuring - AI Search Visibility Optimization tools | Feature | Grammarly | Ludwig | Writesonic | |---|---|---|---| | **AI-Optimized Content Structuring** | Not enough data | Not enough data | Not enough data | | **Schema & Structured Data Optimization** | Not enough data | Not enough data | Not enough data | | **AI-Readable Content Formatting** | Not enough data | Not enough data | Not enough data | | **LLM-Ready Content Preparation** | Not enough data | Not enough data | Not enough data | #### Semantic Optimization & Entity Intelligence - AI Search Visibility Optimization tools | Feature | Grammarly | Ludwig | Writesonic | |---|---|---|---| | **Entity Recognition & Mapping** | Not enough data | Not enough data | Not enough data | | **Knowledge Graph & Entity Linking** | Not enough data | Not enough data | Not enough data | | **Semantic Content Analysis** | Not enough data | Not enough data | Not enough data | | **Topic Authority Optimization** | Not enough data | Not enough data | Not enough data | #### AI Retrieval Optimization - AI Search Visibility Optimization tools | Feature | Grammarly | Ludwig | Writesonic | |---|---|---|---| | **Passage & Chunk Optimization** | Not enough data | Not enough data | Not enough data | | **AI Citation Optimization** | Not enough data | Not enough data | Not enough data | | **Retrieval Readiness Analysis** | Not enough data | Not enough data | Not enough data | | **AI Query Matching Analysis** | Not enough data | Not enough data | Not enough data | #### AI Visibility Monitoring & Analytics - AI Search Visibility Optimization tools | Feature | Grammarly | Ludwig | Writesonic | |---|---|---|---| | **AI Citation Monitoring** | Not enough data | Not enough data | Not enough data | | **AI Answer Visibility Tracking** | Not enough data | Not enough data | Not enough data | | **Generative Search Performance Analytics** | Not enough data | Not enough data | Not enough data | #### Workflow & Platform Integrations - AI Search Visibility Optimization tools | Feature | Grammarly | Ludwig | Writesonic | |---|---|---|---| | **CMS & Publishing Workflow Integrations** | Not enough data | Not enough data | Not enough data | --- ## Categories **Shared Categories (1):** [AI Writing Assistants](https://www.g2.com/categories/ai-writing-assistant) **Unique to Grammarly (2):** [Plagiarism Checker Software](https://www.g2.com/categories/plagiarism-checker), [Proofreading Software](https://www.g2.com/categories/proofreading) **Unique to Writesonic (3):** [AI Search Visibility Optimization Tools Software](https://www.g2.com/categories/ai-search-visibility-optimization-tools), [Answer Engine Optimization (AEO) Tools](https://www.g2.com/categories/answer-engine-optimization-aeo), [SEO Tools](https://www.g2.com/categories/seo-tools) --- ## Reviewer Demographics ### By Company Size | Segment | Grammarly | Ludwig | Writesonic | |---|---|---|---| | **Small-Business** | 51.9% | 57.1% | 91.5% | | **Mid-Market** | 35.8% | 14.3% | 6.4% | | **Enterprise** | 12.3% | 28.6% | 2.1% | ### By Industry #### Grammarly - **Non-Profit Organization Management:** 12.0% - **Marketing and Advertising:** 8.0% - **Computer Software:** 7.7% - **Information Technology and Services:** 7.4% - **Higher Education:** 4.6% - **Education Management:** 3.9% - **Financial Services:** 3.1% - **Primary/Secondary Education:** 2.6% - **Consulting:** 2.4% - **Hospital & Health Care:** 2.3% - **Other:** 46.1% #### Ludwig - **Higher Education:** 14.3% - **Translation and Localization:** 7.1% - **Telecommunications:** 7.1% - **Public Relations and Communications:** 7.1% - **Medical Practice:** 7.1% - **Marketing and Advertising:** 7.1% - **Internet:** 7.1% - **Hospitality:** 7.1% - **Furniture:** 7.1% - **Entertainment:** 7.1% - **Other:** 21.4% #### Writesonic - **Marketing and Advertising:** 21.4% - **Information Technology and Services:** 5.9% - **Writing and Editing:** 5.8% - **Computer Software:** 4.3% - **Health, Wellness and Fitness:** 3.5% - **Education Management:** 2.5% - **Design:** 2.2% - **E-Learning:** 2.2% - **Higher Education:** 2.2% - **Accounting:** 2.0% - **Other:** 47.9% --- ## Alternatives ### Alternatives to Grammarly - [ProWritingAid](https://www.g2.com/products/prowritingaid/reviews) — 4.5/5 stars (48 reviews) - [Jasper](https://www.g2.com/products/jasper-ai/reviews) — 4.7/5 stars (1270 reviews) - [Rytr](https://www.g2.com/products/rytr/reviews) — 4.7/5 stars (819 reviews) - [Semrush](https://www.g2.com/products/semrush/reviews) — 4.5/5 stars (3381 reviews) - [Pepper](https://www.g2.com/products/pepper-content-pepper/reviews) — 4.6/5 stars (496 reviews) - [Anyword](https://www.g2.com/products/anyword/reviews) — 4.8/5 stars (1226 reviews) - [Wordtune](https://www.g2.com/products/ai21labs-wordtune/reviews) — 4.6/5 stars (196 reviews) - [Simplified](https://www.g2.com/products/simplified/reviews) — 4.6/5 stars (5008 reviews) - [Notion](https://www.g2.com/products/notion/reviews) — 4.6/5 stars (11816 reviews) - [Feedback Studio](https://www.g2.com/products/feedback-studio/reviews) — 4.3/5 stars (125 reviews) ### Alternatives to Ludwig - [Jasper](https://www.g2.com/products/jasper-ai/reviews) — 4.7/5 stars (1270 reviews) - [Rytr](https://www.g2.com/products/rytr/reviews) — 4.7/5 stars (819 reviews) - [Notion](https://www.g2.com/products/notion/reviews) — 4.6/5 stars (11816 reviews) - [Zoom Workplace](https://www.g2.com/products/zoom-workplace/reviews) — 4.5/5 stars (56368 reviews) - [Intuit Mailchimp Email Marketing](https://www.g2.com/products/intuit-mailchimp-email-marketing/reviews) — 4.3/5 stars (12962 reviews) - [ClickUp](https://www.g2.com/products/clickup/reviews) — 4.6/5 stars (12352 reviews) - [Apollo.io](https://www.g2.com/products/apollo-io/reviews) — 4.7/5 stars (9647 reviews) - [Constant Contact](https://www.g2.com/products/constant-contact/reviews) — 4.1/5 stars (7391 reviews) - [Canva](https://www.g2.com/products/canva/reviews) — 4.7/5 stars (7469 reviews) - [Simplified](https://www.g2.com/products/simplified/reviews) — 4.6/5 stars (5008 reviews) ### Alternatives to Writesonic - [Scalenut](https://www.g2.com/products/scalenut/reviews) — 4.7/5 stars (315 reviews) - [Semrush](https://www.g2.com/products/semrush/reviews) — 4.5/5 stars (3381 reviews) - [Jasper](https://www.g2.com/products/jasper-ai/reviews) — 4.7/5 stars (1270 reviews) - [Frase.io](https://www.g2.com/products/frase-io/reviews) — 4.8/5 stars (302 reviews) - [INK](https://www.g2.com/products/ink-content-inc-ink/reviews) — 4.8/5 stars (169 reviews) - [SE Ranking](https://www.g2.com/products/se-ranking/reviews) — 4.8/5 stars (1547 reviews) - [Simplified](https://www.g2.com/products/simplified/reviews) — 4.6/5 stars (5008 reviews) - [Anyword](https://www.g2.com/products/anyword/reviews) — 4.8/5 stars (1226 reviews) - [Rytr](https://www.g2.com/products/rytr/reviews) — 4.7/5 stars (819 reviews) - [Pepper](https://www.g2.com/products/pepper-content-pepper/reviews) — 4.6/5 stars (496 reviews) --- ## Top Discussions ### Grammarly - Title: [How the readability score in Grammarly calculated? And what does it means?](https://www.g2.com/discussions/how-the-readability-score-in-grammarly-calculated-and-what-does-it-means) — 98 comments, 3 upvotes > **Top comment:** "Grammarly's readability score is based on the average length of sentences and words in your document, using a formula known as the Flesch reading ease test...." - Title: [What are the benefits of using Grammarly Business for maintaining professionalism and clarity in business communication?](https://www.g2.com/discussions/what-are-the-benefits-of-using-grammarly-business-for-maintaining-professionalism-and-clarity-in-business-communication) — 16 comments, 4 upvotes > **Top comment:** "It helps with ensuring that your correspondence is precise and written with clarity." - Title: [Is it possible to install it on all apps including powerpoint and browsers?](https://www.g2.com/discussions/is-it-possible-to-install-it-on-all-apps-including-powerpoint-and-browsers) — 12 comments, 1 upvote > **Top comment:** "When you download the correct extensions, it should work with many of your apps. It doesn't apply to all of them, however - excel for example - but it's..." - Title: [What is Grammarly Business used for?](https://www.g2.com/discussions/what-is-grammarly-business-used-for) — 5 comments, 7 upvotes > **Top comment:** "In writing effective emails with right tone and no mistakes!" - Title: [What is the business model of Grammarly?](https://www.g2.com/discussions/what-is-the-business-model-of-grammarly) — 4 comments, 2 upvotes > **Top comment:** "Grammarly's business model revolves around providing a premium grammar and spell-checking service for individuals, teams, and enterprise customers. The..." ### Ludwig No discussions available for this product. ### Writesonic - Title: [When using the Writing tools, what have you done to get the best results?](https://www.g2.com/discussions/when-using-the-writing-tools-what-have-you-done-to-get-the-best-results) — 7 comments, 1 upvote > **Top comment:** "The best app forever" - Title: [Are the 50 credits being auto top-up monthly?](https://www.g2.com/discussions/49958-are-the-50-credits-being-auto-top-up-monthly) — 4 comments, 2 upvotes > **Top comment:** "I actually don't know this. I am using writesonic since only one week" - Title: [How can I generate more lengthy content with writesonic?](https://www.g2.com/discussions/51175-how-can-i-generate-more-lengthy-content-with-writesonic) — 3 comments, 1 upvote > **Top comment:** "use ai long form" - Title: [How to best use Writesonic to create marketing campaigns?](https://www.g2.com/discussions/49925-how-to-best-use-writesonic-to-create-marketing-campaigns) — 3 comments, 1 upvote > **Top comment:** ""I would like them to share on the blog how not to waste the credits we have."" - Title: [How did you build this tool? How long did it take to make?](https://www.g2.com/discussions/how-did-you-build-this-tool-how-long-did-it-take-to-make) — 2 comments, 1 upvote > **Top comment:** "just a matter of minutes it was fast and very easy do not miss the opportunity to join this great team" --- **Source:** [G2.com](https://www.g2.com) | [Comparison Page](https://www.g2.com/compare/grammarly-vs-ludwig-vs-writesonic)