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Side-by-side features, use cases and pricing — because the right pick depends on your job and budget, not just the ranking.
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Katteb
✓ verifiedFreemium
AI content platform for writing, fact-checking, and SEO-optimizing articles, with white-label reselling for agencies.
63K visits/mo
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LanguageTool
✓ verifiedFreemium
AI grammar and style checker with paraphrasing, available across browsers, email, office apps and as an API.
7.6M visits/mo5.0K saves
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Scribbr
✓ verifiedFreemium
Academic writing platform combining human and AI proofreading, plagiarism checking, and citation generation for students.
7.3M visits/mo3.2K saves
Pricing
Free: $0/mo (basic tools)
Pro: $17/mo (30,000 credits)
Agency: $99/mo (150,000 credits, white label)
No public pricing
No public pricing
Core features
- ✦AI article writer
- ✦Fact checker with source links
- ✦AI humanizer and rewriter
- ✦Entity-based SEO editor
- ✦Brand-voice cloning
- ✦One-click WordPress publishing
- ✦White-label agency platform
- ✦Grammar and spelling checking
- ✦Style and tone suggestions
- ✦Paraphrasing tool
- ✦Browser, email and office add-ons
- ✦Proofreading API
- ✦Business/GDPR-conformant options
- ✦Plagiarism checker using university-grade detection software
- ✦AI content detector for flagging AI-generated text
- ✦Human proofreading with roughly 3-hour turnaround
- ✦AI-proofreading that reviews a full paper in minutes
- ✦Citation generator supporting APA, MLA, Chicago, and more
- ✦Free paraphrasing, summarizing, and grammar-checking tools
Use cases
- →Produce SEO-optimized blog content
- →Fact-check and humanize AI text
- →Plan topic clusters and content calendars
- →Agencies reselling a branded content platform
- →Proofread and correct writing
- →Rephrase sentences
- →Maintain consistent tone across a team
- →Students getting a paper proofread before submission
- →Checking a thesis or dissertation for unintentional plagiarism
- →Generating accurate citations in a required academic style
- →Detecting whether a document may read as AI-generated
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