AI writing assistant for grammar, clarity, tone and generative rewriting across apps.
Copy.ai vs ProWritingAid
Features, pricing, strengths and trade-offs — and which one fits your situation.
The verdict
Summary
Copy.ai is best for automating repeatable sales and marketing content workflows for GTM teams, while ProWritingAid is best for deep style and structure editing for novelists and long-form writers. Only ProWritingAid offers grammar & style checking. Both Copy.ai and ProWritingAid offer a free plan, so you can try each before paying.
Which should you choose?
Choose Copy.ai if…
- You need automating repeatable sales and marketing content workflows for GTM teams
- You're one of: sales and revops teams, b2b marketing teams, agencies running repeatable content processes
- Workflows automate repetitive GTM content at scale
Choose ProWritingAid if…
- You need deep style and structure editing for novelists and long-form writers
- Grammar & style checking matters to you
- You're one of: fiction authors, non-fiction and long-form writers, editors
- More detailed style reports than general-purpose checkers
At a glance
| Copy.ai | ProWritingAid | |
|---|---|---|
| Best for | Automating repeatable sales and marketing content workflows for GTM teams | Deep style and structure editing for novelists and long-form writers |
| Free plan | Yes | Yes |
| Starting price | From $29/mo | From $10/mo |
| Learning curve | Medium | Medium |
| Platforms | Web, API | Web, Windows, macOS, Chrome extension |
| Ideal for | Sales and RevOps teams, B2B marketing teams, Agencies running repeatable content processes | Fiction authors, Non-fiction and long-form writers, Editors, Students writing theses |
Feature comparison
| Copy.ai | ProWritingAid | |
|---|---|---|
| Grammar & style checking | No | Yes |
| Paraphrasing / rewriting | Yes | Yes |
| Long-form drafting | Yes | Limited |
| Brand voice / style guide | Yes | Limited |
| Plagiarism checker | No | Limited |
| AI content detection | No | — |
| Works in browser / other apps | — | Yes |
| Languages | — | English only |
| Team workspace | Yes | Limited |
IncludedLimited / higher plansNot available— Not confirmed
Security & enterprise
| Copy.ai | ProWritingAid | |
|---|---|---|
| Business / enterprise plan | Yes | Yes |
| SSO (SAML / OIDC) | Enterprise plan | Enterprise plan |
| SCIM user provisioning | — | — |
| SOC 2 | Type II | — |
| ISO 27001 | — | — |
| HIPAA (BAA available) | — | — |
| GDPR DPA | — | Enterprise plan |
| Data residency options | — | US, EU (Azure) |
| No training on your data | — | Yes |
| Audit logs | — | — |
| Admin controls | Yes | Yes |
| Deployment | Cloud | Cloud |
From each vendor's security documentation. "—" = not confirmed. What to ask vendors · Compare all tools
What each tool does
Copy.ai
Copy.ai started as an AI copywriter and is now a go-to-market AI platform built around Workflows, Agents, Tables, Chat, Brand Voice and an Infobase of company knowledge. It connects to CRMs and sales tools to automate tasks such as prospect research, outreach drafts and content repurposing. Fullcast acquired Copy.ai in October 2025 and is folding it into its RevOps suite.
Key features- Chat for one-off writing and research tasks
- Workflows that automate multi-step content processes
- Copy Agents for automated task execution
- Brand Voice and Infobase for company context
- Choice of models from OpenAI, Anthropic, Google and others
- Integrations with Salesforce, HubSpot, Gong and Zapier
ProWritingAid
ProWritingAid is a grammar checker and style editor with 25+ reports covering readability, pacing, dialogue, overused words and more. It adds AI tools such as Rephrase, Sparks, Chapter Critique and full Manuscript Analysis, plus a Virtual Beta Reader and story planning tools. It is used mostly by fiction authors, non-fiction writers and editors working on long documents.
Key features- 25+ in-depth writing reports (pacing, dialogue, readability)
- Rephrase and Sparks AI suggestions
- Chapter Critique and Manuscript Analysis
- Story Canvas planning tools
- Integrations with Word, Google Docs and Scrivener
- Desktop apps and browser extensions
Pricing
Copy.ai
Free plan: yes; Chat plan ~$29/mo ($24/mo annual), Agents/Growth plans much higher (custom)
ProWritingAid
Free plan. Premium ~$10/mo billed annually ($120/yr) or $30 monthly; Premium Pro ~$144/yr; lifetime options.
Prices last checked September 2026. Plans change often — confirm on each vendor's site.
Pros and cons
Copy.ai
Strengths- Workflows automate repetitive GTM content at scale
- Connects to CRM and sales engagement tools
- Chat plan covers several users on one subscription
- Model-agnostic, so you are not tied to one AI provider
- Workflow and agent plans are priced for companies, not individuals
- Product direction is shifting after the Fullcast acquisition
- No grammar checker, plagiarism checker or AI detector
- Building useful workflows takes setup time
Not ideal for: Individuals who want a writing editor or proofreader, or a simple copy generator, will find the GTM focus more than they need.
ProWritingAid
Strengths- More detailed style reports than general-purpose checkers
- Handles full-length manuscripts on paid plans
- Works in Scrivener, Word, Google Docs and more
- Lifetime purchase option available
- English only
- Free plan limits checks to short passages a few times per day
- Interface with many reports can feel overwhelming
- Manuscript Analysis requires separately purchased story credits
Not ideal for: People who mainly need quick fixes in emails and chat, or writing in languages other than English, will find lighter or multilingual tools easier.
Integrations
Copy.ai
ProWritingAid
FAQ
What is the main difference between Copy.ai and ProWritingAid?
Copy.ai is built for automating repeatable sales and marketing content workflows for GTM teams; ProWritingAid is built for deep style and structure editing for novelists and long-form writers. Key differences: ProWritingAid offers grammar & style checking.
Is Copy.ai or ProWritingAid cheaper?
Copy.ai starts from $29/mo and ProWritingAid starts from $10/mo (as of September 2026). On entry price, ProWritingAid is cheaper — but compare what each plan includes, since limits differ. Always confirm current pricing on each vendor's site.
Do Copy.ai and ProWritingAid have free plans?
Both Copy.ai and ProWritingAid offer a free plan, so you can try each before paying.
Which is easier to use, Copy.ai or ProWritingAid?
Both have a medium learning curve.
What are good alternatives to Copy.ai and ProWritingAid?
Other writing tools worth comparing include Grammarly, QuillBot and Writesonic.
