Compare ProWritingAid and Copyleaks on pricing, features, platforms, and ratings — both AI Writing tools, Freemium with monthly, annual, or one-time lifetime…
At a Glance
ProWritingAid
Copyleaks
Primary category
AI Writing
AI Writing
Rating
Not documented
Not documented
Pricing model
Freemium with monthly, annual, or one-time lifetime purchase options
Freemium credit-based subscription, plus separate enterprise and API/model-integration pricing
Starting price
Free plan available; Premium from $10/month billed annually ($120/year), or $399 one-time lifetime purchase
Free plan available (~10 pages/month); paid individual plans start at 7.99 USD per month
Free plan
Yes
Not documented
Free trial
Not documented
Not documented
Platforms
Web, Mac, Windows
Not documented
Team collaboration
Not documented
Not documented
AI features
Yes
Not documented
Public API
Not documented
Not documented
Pricing Compared
Starting price reflects the lowest paid tier, not the full cost for every team size or usage level.
ProWritingAid
Free — $0 N/A
Premium — $30/month, $120/year, or $399 lifetime Monthly, annual, or one-time lifetime
Premium Pro — $36/month, $144/year, or $699 lifetime Monthly, annual, or one-time lifetime
Copyleaks
Free — 0 USD monthly
AI Content Detector — 7.99 USD monthly
Plagiarism Detector — 8.99 USD monthly
AI and Plagiarism Detection — 13.99 USD monthly
Annual — 899.88 USD annual
Enterprise model integration — starting at 4,500 USD annual
Pros & Cons
ProWritingAid
Pros
Deep, report-based feedback well suited to long-form and fiction writing
Strong integrations with Scrivener, Word, and Google Docs for writers outside the browser
Author comparison tool gives unique stylistic benchmarking not found in most competitors
Slightly cheaper annual pricing than Grammarly Premium even after the 2026 price increase
Cons
English-only support, with no other languages currently available
2026 pricing changes raised the annual plan by roughly 52 percent
Free plan is limited to 500 words per submission and two report runs per day
Report-heavy interface can feel overwhelming compared to simpler grammar checkers
Copyleaks
Pros
Combines plagiarism and AI detection in one report rather than separate tools
Covers text, source code, and images, unlike single-modality detectors
Deep LMS integrations for Canvas, Moodle, and Blackboard
Claimed accuracy above 99 percent across major AI model outputs
Developer API available for custom integrations
Free tier available for occasional spot checks
Cons
Free tier is limited to about 10 pages per month, too low for regular use
Accuracy drops on AI text that has been manually edited or paraphrased after generation
Credit-based pricing can be confusing to estimate against actual usage volume
Enterprise model-integration pricing starts high at 4,500 USD per year
Company headcount is still relatively small, at under 100 employees as of early 2026
Use Cases
ProWritingAid
Novelists revising long manuscripts — Fiction writers use ProWritingAid's pacing, dialogue, and overused-word reports alongside Scrivener integration to revise full-length manuscripts.
Academic and business writers needing citation support — Writers producing research papers or reports use the citations manager and readability reports to polish formal writing.
Writers wanting mentorship and community — Premium Pro subscribers use live author workshops and networking events to get feedback and connect with other writers.
Copyleaks
Academic integrity checking — Universities and schools use Copyleaks through LMS integrations to check student submissions for plagiarism and AI-generated content.
Editorial and publishing content verification — Publishers and content teams scan articles before publication to catch plagiarism or undisclosed AI-generated text.
Developer-embedded content verification — Software companies use the Copyleaks API to add plagiarism and AI detection directly into their own platforms.