Best for
Best for authors and long-form writers who want deep style reports and story critique inside the app they already write in.
- Freelancers
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AI Writing Comparison
At a glance
Best for
Best for authors and long-form writers who want deep style reports and story critique inside the app they already 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 | ProWritingAid | Writer |
|---|---|---|
| Starting price | Free tier; Premium from $10 / month $10 per month billed yearly ($120 a year), $30 billed monthly. Premium Pro is $12 billed yearly ($144) or $36 monthly. Lifetime licences are $399 (Premium) and $699 (Premium Pro). | Not stated |
| Free trial | Free plan with a 500-word limit, 2 report runs per report per day, 10 rephrases and 3 Sparks per day | 14-day free trial on Starter, no credit card required |
| Output | Grammar and style suggestions, 25+ writing reports, rephrasing and story critique | Documents, presentations, dashboards and spreadsheets |
| Hosting | Cloud, with desktop apps for Windows and macOS and browser extensions | Cloud, fully managed by the vendor |
| Content types | Fiction manuscripts and general prose; more than 40 document types can be set for tailored suggestions | Documents, presentations, blog posts, customer communications, dashboards and spreadsheets |
| Brand voice | Custom style guide with your own rules, plus terminology management from an uploaded term base (Premium and above) | Yes, voice and personality profiles per team, approved terminology and restricted-term rewriting, with departmental profiles on Enterprise |
| Content scoring | Yes, more than 25 writing analysis reports covering readability, structure, overused words and sensory detail, plus comparison against 90 fiction authors | Every output is checked against your rules for punctuation, capitalization, grammar, readability and inclusivity before review |
| Drafting tools | Rephrase and Sparks rewrite, enhance, summarize, expand or continue text; the vendor states its AI features are not intended to write for you | WRITER Agent plans and executes multi-step work, with canvas editing, multi-modal outputs, code execution, browser automation and data analysis |
| Templates | No template library; Snippets store frequently used pieces of text for reuse | Playbooks and an Agent Library of more than 100 prebuilt agents; an uploaded slide template is reused for generated presentations |
| Team workflows | Document sharing with real-time comments; the published plans are individual rather than team seats | Yes, shareable playbooks, scheduled routines, chained cross-team workflows, approvals, role-based access and audit logs |
| API | Yes, a Grammar and Style checking API at api.prowritingaid.com, licensed and paid for separately from the writing subscription. The licence covers unlimited servers and locations but forbids shipping it inside an SDK or using it to build a competing checker | 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 | Documentation and knowledge base, Live online demos and webinars | more entries Documentation and knowledge base, Guided onboarding, On-site training |
| Company size | Freelancers | more entries Small and mid-sized, Enterprise |
| Integrations | more entries Microsoft Word, Google Docs, Scrivener, Vellum, Apple Notes, Atticus, Wattpad, Chrome, Edge, Firefox | 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
ProWritingAid
Strengths
Limitations
Writer
Strengths
Limitations
Plans
ProWritingAid
Writer
What users say
ProWritingAid
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Writer
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Where this comes from
ProWritingAid https://prowritingaid.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.