Comparison

AI Chatbot vs Ghostwriter

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

AI Chatbot

This AI chatbot and writer leverages advanced GPT and Gemini models to provide human-like conversations, creative writing assistance, and meticulous proofreading. It offers unlimited interactions, multi-language support, and cross-device compatibility for a versatile user experience.

Highlights
  • Advanced AI models (GPT-5.2, GPT-4o, Gemini, Claude)
  • Human-like conversational AI
  • AI writing assistant for various content
  • Meticulous AI proofreader
  • Unlimited questions and answers
  • Multi-language support (140+)
  • Cross-compatible device support
Features
Read full description

Trusted by millions of users worldwide, Nova is an all-in-one AI chatbot and assistant that helps you write, learn, and get instant answers securely and effortlessly. Built on the latest OpenAI GPT-5.6, Google Gemini 3.6 Flash, Anthropic Claude Opus 5, Kimi K3, xAI Grok 4.5, and DeepSeek V4 Pro, Nova delivers fast and reliable AI assistance, helping you stay productive, creative, and informed in one seamless experience. Whether you want to write better, learn faster, or get instant answers, Nova brings the power of advanced chatbot AI into one simple experience. WHAT IT DOES Nova helps you handle everyday tasks with ease using a powerful AI chatbot assistant: • Get instant answers with an advanced AI chatbot built on OpenAI GPT-5.6 • Generate images with AI • Search the web for real-time information • Write, rewrite, and improve content with an AI writer built on OpenAI GPT-5.6. • Generate ideas for social media, business, and creativity • Translate and communicate in 140+ languages • Discover personalized recommendations (books, movies, more) • Use voice mode for hands-free interaction • Work on files like Word, Excel, and more • Scan and solve problems instantly (documents, questions, homework) • Generate, explain, and debug code with AI-powered coding assistance • Research topics in depth and explore complex ideas • Compare information, analyze sources, and uncover key insights Key capabilities: • Image generation • Voice mode • Web search • AI chatbot for real-time conversations • AI proofreader for grammar, clarity, tone, and rewriting • AI coding assistant • Deep research and analysis From quick questions to complex workflows, Nova delivers fast, natural responses built on OpenAI GPT-5.6 and advanced AI models, with real-time insights and context-aware intelligence built on DeepSeek V4 Pro. Trusted by millions of users worldwide, Nova is a leading AI chatbot for writing, productivity, and everyday AI assistance. WHY IT’S EASY Nova is built to be intuitive, fast, and effortless. • One-tap AI chat, start using the AI chatbot instantly • Clean, intuitive interface • Cross-device sync, continue your chatbot AI experience anywhere How it works: Ask your question Choose your goal (write, learn, create) Get instant AI-powered results No setup. No complexity. Just results with your personal AI chatbot assistant. TRUST & SECURITY Your data and privacy are a priority. Nova follows modern security principles: • Data minimization • No unnecessary tracking • Secure processing infrastructure Your AI chatbot conversations stay private and under your control. Nova is built with a privacy-first mindset, ensuring your interaction with the AI chatbot remains secure, reliable, and protected. Privacy Policy: https://novaapp.ai/privacy Terms of Service: https://novaapp.ai/terms Support: support@novaapp.ai WORKS EVERYWHERE Nova works seamlessly across all phones and tablets. Multi-language AI support (140+ languages) Built on leading AI systems: OpenAI GPT-5.6 • Google Gemini 3.6 Flash • Anthropic Claude Opus 5 • Kimi K3 • xAI Grok 4.5 • DeepSeek V4 Pro WHY NOVA • All-in-one AI chatbot & assistant built on OpenAI’s GPT-5.6 model • Fast and creative chatbot AI responses • Designed for everyday productivity and creativity • Continuous improvements with evolving AI technologies Trusted by millions of users worldwide, Nova is your all-in-one AI chatbot and assistant for work, learning, and creativity, built on OpenAI GPT-5.6, Google Gemini 3.6 Flash and Anthropic Claude Opus 5. DESIGNED FOR EVERYDAY AI USE • AI chat, writing, and productivity assistant with image generation, web search, and voice mode • For students, professionals, creators, and teams, supports Word, Excel, and more • Fast, simple, and powerful, with scan and solve capabilities From simple questions to advanced tasks, Nova makes AI accessible, useful, and powerful for everyone.

About

Ghostwriter

Features
Read full description

Ghostwriter is the AI-powered book writing app that takes you from a rough idea to a polished manuscript — without staring at a blank page. HOW IT WORKS Ghostwriter follows a proven six-step authoring flow designed for people who have stories, expertise, and ideas but struggle to organize them into a book: 1. Start with a topic. Tell us what your book is about — one sentence or a full page. We meet you where you are. 2. AI builds your structure. Ghostwriter generates a custom Table of Contents with chapters and sections tailored to your topic. Review it, tweak it, make it yours. 3. Detailed blueprints. Each chapter gets objectives, goals, and section breakdowns — the skeleton that makes your book work. 4. AI interviews you. This is where the magic happens. Ghostwriter asks targeted questions designed to pull your unique stories, insights, and expertise out of you, section by section. Answer by typing, talking, or uploading documents, photos, audio, and video. 5. AI writes your book. Using your structure and your answers, Ghostwriter drafts every chapter in your voice. Watch it happen in real time in the Writing Theater. 6. Review and refine. Go through each section, approve what works, request rewrites for what doesn't. You stay in control of every word. KEY FEATURES • Voice Interviews — talk naturally with an AI interviewer that asks smart follow-up questions. No typing required. • Structure Studio — design your book's architecture with drag-and-drop chapters and sections. • Content Blueprints — AI generates detailed objectives and summaries for every section before writing begins. • Writing Theater — watch your book come to life with real-time AI writing, progress tracking, and word counts. • Review Suite — approve, edit, or request rewrites section by section with full source-material visibility. • Multi-Input Support — answer questions with text, voice recordings, photos, documents, audio files, and video. • Smart Document Analysis — upload research PDFs and Ghostwriter extracts key themes, quotes, and insights automatically. • Export — DOCX, PDF, EPUB, Markdown, and plain text. • Works on iPhone and iPad, with Mac support on the way. WHO IS IT FOR? • First-time authors who don't know where to start • Entrepreneurs writing thought-leadership books • Coaches and consultants turning expertise into published works • Memoirists capturing life stories • Anyone with a book inside them that needs help getting it out Free to start: every new account includes enough credits to generate a full Table of Contents and Blueprint. Book Credits (available as in-app purchases) cover the interview, full drafting, and rewrites for an entire book. Your ideas. Your voice. Your book. Ghostwriter just makes it happen.

Screenshots

AI Chatbot4 screens
Ghostwriter4 screens

Verdict

The call

The clearest difference is update cadence: Ghostwriter at every 3 days against AI Chatbot's every 2 weeks. AI Chatbot's advantage is chart position (#35 vs unranked) and iOS requirement (15 vs 26.0). 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. AI Chatbot sells 20 in-app purchases, starting at $4.99 per 7 days and Ghostwriter sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

AI Chatbot ships an update every 2 weeks, Ghostwriter every 3 days. The most recent releases landed on September 27, 2026 and September 22, 2026 respectively.

Scorecard3 real differences · 8 level
AI Chatbot versus Ghostwriter: the parameters behind the verdict, then further details
ParameterAI ChatbotGhostwriter
PriceFreeFree
Rating4.6 (126K ratings) — better—
Positive reviews71.7% of reviews—
Number of ratings126K — better—
Update frequencyEvery 2 weeksEvery 3 days — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchases—
Best chart rank#35 — better—
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15 — better26.0
Further details — not scored
Size202 MB40 MB
Age rating9+12+
DeveloperSCALEUP YAZILIM HIZMETLERIApp Launchers LLC

Bugs and requests

AI Chatbot

Reported bugs

3 issues
  • Inconsistent performance and response times
  • Syncing issues across devices
  • Unreliable image generation

Requested features

4 requests
  • Improved search and history management
  • Integration with more third-party apps
  • Expanded free features and trial period
  • Offline mode or local data storage

Ghostwriter

Not enough reviews yet to summarise bugs or requests.

In-app purchases

20 purchases

AI Chatbot

Subscriptions12
  • 1 Week Chatbot Pro3 Days trial2 variants$4.997 Days
  • 1 Week Chatbot Pro$4.997 Days
  • 1 Week Chatbot Pro3 Days trial$6.997 Days
Show 9 more
  • 1 Week Chatbot Pro$6.997 Days
  • 1 Week Chatbot Pro$7.997 Days
  • 1 Week Chatbot Pro3 Days trial$7.997 Days
  • 1 Week Chatbot Pro7 Days trial$7.997 Days
  • Nova Premium Subscription3 Days trial$9.997 Days
  • 1 Month Chatbot OpenAI Subs3 Days trial$9.991 Month
  • 1 Year Chatbot Pro$39.991 Year
  • 1 Year Chatbot Pro$59.991 Year
  • 1 Year Chatbot Pro$199.991 Year
One-time8
  • Nova AI Assistant Promoted PRO$0.99
  • Nova AI Assistant PRO$1.99
  • Nova AI Assistant Upgrade PRO$2.99
Show 5 more
  • Nova AI Assistant Platinium$6.99
  • Lifetime Chatbot Nova Subs$39.99
  • Lifetime Chatbot Nova Subs$49.99
  • Lifetime Chatbot Nova Subs$59.99
  • Lifetime Chatbot Nova Subs$69.99
3 purchases

Ghostwriter

One-time3
  • Single Book Credit$199.99
  • 3 Book Credits$499.99
  • 5 Book Credits$799.99

Questions

Is AI Chatbot free?
AI Chatbot is free to download, with in-app purchases available.
Is Ghostwriter free?
Ghostwriter is free to download, with in-app purchases available.
Do AI Chatbot or Ghostwriter have ads?
Neither AI Chatbot nor Ghostwriter shows ads.
Which is updated more often, AI Chatbot or Ghostwriter?
AI Chatbot ships an update every 2 weeks, and Ghostwriter every 3 days. Most recently, AI Chatbot was updated on September 27, 2026 and Ghostwriter on September 22, 2026.

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