Xiaoyao vs Seph
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Xiaoyao
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Stuck on a plot hole? Need a spark of inspiration? Meet Xiaoyao – your new AI writing partner designed to set your creativity free. Xiaoyao is not just a chatbot; it is a sophisticated AI powered by a Large Language Model tuned specifically for storytelling. Whether you are a novelist, a screenwriter, or a creative hobbyist, Xiaoyao understands narrative structure, character arcs, and the nuances of dialogue. 【Key Features】 1. Specialized Writing Modes Novel Mode: Perfect for crafting immersive prose, vivid descriptions, and long-form narratives across genres like Fantasy, Romance, Sci-Fi, and Mystery. Script Mode: Understands screenwriting conventions. Generate formatted scenes, dialogue, and action lines for movies, TV shows, or short videos. 2. Crush Writer’s Block Instant Brainstorming: Feed Xiaoyao a simple premise, and watch it generate full plot outlines, story beats, and surprising twists. Intelligent Continuation: Stuck mid-sentence? Let the AI suggest what happens next, keeping your flow uninterrupted. 3. Deep Character Development Create multi-dimensional characters with generated backstories, motivations, and distinct voices. Roleplay Feature: Chat with your characters to understand their psychology and refine their dialogue. 4. Smart Editing & Polishing Enhance your drafts with AI suggestions. Improve pacing, sharpen dialogue, or expand on emotional beats with a single click. 5. Distraction-Free Design A clean, chat-based interface focused entirely on your text. Save and organize your ideas instantly. 【Why Xiaoyao?】 "Xiaoyao" means being free and unfettered. We believe writing should be a journey of freedom, not frustration. With Xiaoyao, you have a tireless collaborator ready to help you turn your ideas into masterpieces. Download Xiaoyao today and start writing your story! 【User Agreement】:https://xiaoyao.col.com/protocols/en/user_agreement.html 【Privacy Policy】:https://xiaoyao.col.com/protocols/en/privacy_policy.html
Seph
This app acts as a conversational collaborator for creators, helping to develop characters, worlds, and plots through dialogue. It builds private AI models of your creative IP, allowing you to revisit and expand upon your ideas across projects.
- Conversational creative development
- Private AI model training
- Automatic note capture
- Cross-session context preservation
- Export notes to Google Sheets
- Voice and text input
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Seph is a conversational creative collaborator for anyone building creative IP. Novelists, screenwriters, filmmakers, game designers, worldbuilders, and the next generation of creators finding their voice. Seph works alongside you, listening and thinking and taking notes, and captures your world, your characters, your voice, and your creative vision into a private AI model that belongs entirely to you. While AI can generate content faster than any human, it isn't good at originating authentic creative vision. AI produces variations. It remixes. The world, the rules, the voice; these still come from you. Seph is built on that belief. Seph engages you in conversation about your story ideas. These conversations become a living record of your world: characters, settings, scenes, plot, tone, thematic intent. Over time, Seph builds custom models of your creative IP that you can return to, expand, and work with across projects. The models are "living worlds", dynamic embodiments of your imagination. WHAT YOU CAN DO WITH SEPH - Have open-ended creative conversations about your work, by voice or text - Develop characters, worlds, plots, and tone through dialogue - Capture notes automatically as you think out loud - Train private AI models on your own creative material - Export notes to Google Sheets and other destinations - Work across sessions with full context preserved PRIVATE BY DESIGN Models trained from your work are yours. Your models are private to your account. We do not use your content to train general models, and we do not share your creative material with anyone. Third-party AI providers we work with are contractually prohibited from training on your content. EARLY ACCESS Seph is currently in early access and free to use. Paid features, including model training credits, are available for creators ready to go deeper. We're building Seph with and for creators at every stage, from established professionals to emerging voices. Your feedback shapes what comes next. ABOUT THE SUPERPOSITION The Superposition is an AI-first entertainment company building at the intersection of creative intelligence and ownership. We believe the future of entertainment will be built on author-owned AI models. Living IP that powers creatives and studios alike. Questions, feedback, or partnerships: support@thesuperposition.ai
Screenshots
Verdict
The clearest difference is iOS requirement: Xiaoyao at 13.0 against Seph's 18.5. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
| Parameter | Xiaoyao | Seph |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Number of ratings | — | 1 — better |
| Update frequency | — | Every 4 weeks |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 13.0 — better | 18.5 |
| Further details — not scored | ||
| Size | 24 MB | 8 MB |
| Age rating | 4+ | 17+ |
| Developer | 北京鸿达以太科技有限公司 | The Superposition |
In-app purchases
Xiaoyao
No in-app purchases
Seph
No in-app purchases








