Best for
Best for individuals and teams who want grammar, clarity and tone help across every app they write in.
- Freelancers
- Small and mid-sized
- Enterprise
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AI Writing Comparison
At a glance
Best for
Best for individuals and teams who want grammar, clarity and tone help across every app they write in.
Best for
Best for enterprise marketing, sales and support teams that need every AI output to follow approved brand voice, terminology and governance rules.
Cataleo does not name a winner. Both statements come from the vendors themselves.
| Criterion | Grammarly | Writer |
|---|---|---|
| Starting price | Free tier; Pro from $12 / user / month $12 per member per month billed annually, $30 billed monthly. Enterprise is custom. | Not stated |
| Free trial | Free tier with 100 AI prompts per month | 14-day free trial on Starter, no credit card required |
| Commercial use | Yes | Not stated |
| Output | Grammar, clarity and tone suggestions, plus generative AI drafts | Documents, presentations, dashboards and spreadsheets |
| Hosting | Not stated | Cloud, fully managed by the vendor |
| Content types | Emails, documents, business and academic writing | Documents, presentations, blog posts, customer communications, dashboards and spreadsheets |
| Brand voice | Yes, brand tone and style guide (unlimited on Enterprise) | Yes, voice and personality profiles per team, approved terminology and restricted-term rewriting, with departmental profiles on Enterprise |
| Content scoring | Yes, writing performance score and tone detection | Every output is checked against your rules for punctuation, capitalization, grammar, readability and inclusivity before review |
| Drafting tools | Yes, generative AI prompts, rewrites and tone adjustments | WRITER Agent plans and executes multi-step work, with canvas editing, multi-modal outputs, code execution, browser automation and data analysis |
| Templates | No preset template library; generation runs from prompts and built-in AI agents | Playbooks and an Agent Library of more than 100 prebuilt agents; an uploaded slide template is reused for generated presentations |
| Team workflows | Yes, team analytics, snippets and shared style guide | Yes, shareable playbooks, scheduled routines, chained cross-team workflows, approvals, role-based access and audit logs |
| API | No public API; the Text Editor SDK for developers was discontinued in 2024 | Yes, API access with published developer documentation and SDKs; expanded rate limits on Enterprise |
| Deployment | Cloud (SaaS), Browser-based | Cloud (SaaS), Browser-based |
| Support | Not stated | Email helpdesk |
| Onboarding | Not stated | Documentation and knowledge base, Guided onboarding, On-site training |
| Company size | more entries Freelancers, Small and mid-sized, Enterprise | Small and mid-sized, Enterprise |
| Integrations | Not stated | Salesforce, Contentful, Adobe Experience Manager, Asana, Atlassian (Confluence and Jira), Databricks, FactSet, Gong, Google BigQuery |
Adds a column to the table, from the tools in this category.
Row where the values differ The small markers point at the lower number, the longer list or the stated feature. They describe the data, they are not a verdict.
The short version
Every line is one datapoint from the table above, picked automatically. Nothing here is written text.
The trade-offs
Grammarly
Strengths
Limitations
Writer
Strengths
Limitations
Plans
Grammarly
Writer
What users say
Grammarly
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Writer
No reviews yet. Be the first to review this tool. Every review is checked for fairness before it appears, and the vendor cannot have one removed.
Where this comes from
Grammarly https://www.grammarly.com · no check date recorded yet
Writer https://writer.com · no check date recorded yet
This table lists factual criteria taken from information the vendors publish themselves. For how we put it together, see the methodology.