| What it does | AI humanizer for multilingual writing with best-in-class Japanese support
| AI ebook studio that writes books from your own notes, then exports publish-ready files
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| Stage | Startup
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| Founded | 2026
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| Based in | HK
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| Pricing model | Freemium
| Freemium
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| Pricing | Free: 500 words/day humanize + unlimited detector (no credit card required); Basic: $9.99/month for 50,000 words/month + 30-day history + priority email support; Pro: $19.99/month for 250,000 words/month + academic mode + 90-day history + priority API queue. Student discount: 50% off annual plans wi
| Free plan with 50 credits (covers approximately 2 lead magnets). Starter plan $19/month for 300 credits. Pro plan $39/month for 900 credits. Credit pack $20 one-time for 250 credits. Single book $9 to download one finished book's PDF, EPUB and DOCX. Lead magnet 25 credits ($1.58 on Starter, $1.08 on
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| Key features | - AI text humanizer with casual, academic, and business modes
- Free AI content detector with ai_score, perplexity, and burstiness metrics
- Morphology-aware Japanese rewriting with conjugation and particle control
- Citation and technical term preservation in academic mode
- Three parallel rewrites scored by separate detector model
- Five-step intensity slider for faithfulness vs. AI-fingerprint tradeoff
- History and re-rewrite capability (30 or 90 days depending on plan)
- Second-pass academic polish with Claude 3.5 Haiku on Pro plan
- Support for English, Japanese, Korean, German, French, Spanish, Portuguese, and Chinese
- Tested against GPTZero, Turnitin, Originality.ai, and Copyleaks
| - Free book planning with title options and chapter outlines before writing
- Write books from your own notes, transcripts, PDFs and course materials
- Read and edit every chapter in the app before paying
- Export as publish-ready PDF, EPUB and DOCX files
- Full commercial rights to sell books anywhere
- AI-generated coloring books with vector line art
- Connect to Claude, ChatGPT and other AI apps via MCP
- Web research integration while writing
- Six cover design options per book
- AI rewriting with accept/reject preview
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| What makes it different | - Best-in-class Japanese support with morphology-aware morpheme-level tuning, unlike generic humanizers
- Separate AI detector scores rewrites to guarantee the most natural result
- Preserves academic citations, figures, tables, and technical terminology verbatim
- Five-step granular intensity control to trade off faithfulness versus AI-fingerprint removal
- Independent developer with transparent privacy: no model training on user text, fixed deletion schedule
| - Write from your own material, not generic filler
- No watermark and full commercial rights included
- Plan and read everything free before any payment
- Integration with AI apps you already use via MCP
- Create multiple book types from one platform: ebooks, lead magnets, workbooks and coloring books
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 4 ● no change since last check | 6 ▲ +2 (up) since last check |
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| Trust Flow (Majestic) | 11 | 0 |
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| Citation Flow (Majestic) | 14 | 0 |
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| Referring domains (Majestic) | 46 | 0 |
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Suikou AI
SuperEbook