| What it does | AI humanizer for multilingual writing with best-in-class Japanese support
| AI writing room that keeps your whole manuscript in context
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| Stage | Startup
| Startup
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| Founded | 2026
| 2024
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| Based in | HK
| Not given
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| Pricing model | Freemium
| Not given
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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: Create up to 3 books with 8 fast AI prompts per month. Explorer $14/month: Unlimited projects, 100 Pro AI prompts, 1GB storage. Storyteller $35/month: 500 Pro AI prompts, 10GB storage, priority support. Professional $99/month: 2,000 Pro AI prompts, 20GB storage, 24/7 priority support. Pub
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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
| - Whole-manuscript memory: AI assistant retains context of every chapter and note
- AI outline drafting from your book idea
- Chapter drafting from notes and outline
- KDP-ready EPUB, PDF, and DOCX export
- AI Amazon listing pack with keywords, categories, and blurb
- Switch between Claude, GPT, and Gemini models per prompt
- Word-count goal tracking and manuscript progress monitoring
- Cloud synchronization across devices
- Smart KDP pricing and royalty recommendations
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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
| - Assistant remembers your entire manuscript instead of resetting each session like ChatGPT
- You retain full ownership and control—nothing enters the book until you accept it
- All-in-one publishing: covers, KDP files, and Amazon listing all generated in one place
- Edits match your voice based on chapters you've already written
- Never locked in—export DOCX, PDF, or EPUB on any plan, anytime
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 4 ● no change since last check | 24 ▼ −1 (down) since last check |
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| Trust Flow (Majestic) | 11 | 8 |
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| Citation Flow (Majestic) | 14 | 32 |
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| Referring domains (Majestic) | 46 | 259 |
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Suikou AI
Bookwiz