Ghostwriter AI for Microsoft Office records 14,977 monthly visits with -33.2% month-over-month growth and Paid pricing. HyperWrite records 255,429 monthly visits with +34.4% growth and Freemium pricing.
Privacy-first AI writing add-ins that plug directly into Word, Excel, Outlook and PowerPoint.
AI writing assistant with autocomplete, research, and a Chrome extension
| Dimension / Metric | | |
|---|---|---|
| Official Domain | ghostwriter-ai.com | hyperwriteai.com |
| Pricing Model | Paid | Freemium |
| Monthly Visits | 14.98K (14,977) | 255.43K (255,429) |
| MoM Traffic Delta | -7.44K (-33.2%) | +65.35K (+34.4%) |
| Primary Market & Share | 🇺🇸 United States (28.5%) | 🇺🇸 United States (44.5%) |
| Direct Visits / mo | 5.94K | 107.72K |
| User Rating | 4.2 | 3.9 |
| Supported Platforms | Website | Website |
Privacy-first AI writing add-ins that plug directly into Word, Excel, Outlook and PowerPoint.
Works inside Word, Excel, Outlook and PowerPoint on Windows, Mac, the web and iPad through the Microsoft Office Add-in Store.
Unlock OpenAI, Google Gemini or xAI Grok models with your own API key, so you control provider choice and usage spend.
Editions ship with Quick Action prompts, agent personas, writing styles and tones, creative-level and response-length controls.
Ask Ghostwriter Excel to analyse a selected table, generate sample data, or have Ghostwriter PowerPoint produce quick bulleted facts.
AI writing assistant with autocomplete, research, and a Chrome extension
Context-aware sentence completions appear as you type in Gmail, Google Docs, and other sites through the Chrome extension.
Generate a paragraph from a short prompt or rewrite existing text in a new tone while preserving meaning.
HyperWrite Scholar searches millions of scholarly articles so drafts can include factual, properly cited information.
Turn a few keywords into a complete, ready-to-send email reply without switching tabs.
SpecialistOpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
SpecialistOpenAI's flagship multimodal assistant powered by GPT-6 and GPT-5.6 for reasoning, coding, and deep research.
SpecialistAnthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing.
SpecialistAnthropic's frontier AI workspace powered by Claude 5.5 for agentic coding, analysis, and nuanced writing.
SpecialistReal-time AI answer engine and research workspace combining live web citations with frontier reasoning models.
SpecialistReal-time AI answer engine and research workspace combining live web citations with frontier reasoning models.
SpecialistSpecializes in robust grammar correction, spelling, and tone adjustments across apps, but lacks generative predictive writing autocomplete.
SpecialistSpecializes in robust grammar correction, spelling, and tone adjustments across apps, but lacks generative predictive writing autocomplete.
SpecialistExcels at sentence paraphrasing, summarization, and citation formatting, but lacks HyperWrite's active predictive browser autocompletion.
SpecialistExcels at sentence paraphrasing, summarization, and citation formatting, but lacks HyperWrite's active predictive browser autocompletion.
Free / Open-sourceAI grammar, spelling and style checker for 30+ languages
Free / Open-sourceAI grammar, spelling and style checker for 30+ languages
Offers an all-in-one browser extension with chat, writing assistance, and search capabilities, though less focused on predictive autocomplete.
Offers an all-in-one browser extension with chat, writing assistance, and search capabilities, though less focused on predictive autocomplete.
Provides a browser extension sidebar integrating multiple frontier models and writing tools, offering broader model choice than HyperWrite.
Provides a browser extension sidebar integrating multiple frontier models and writing tools, offering broader model choice than HyperWrite.
SpecialistTailored specifically for academic and research writing with source citations and autocomplete, rivaling HyperWrite's scholarly tools.
SpecialistTailored specifically for academic and research writing with source citations and autocomplete, rivaling HyperWrite's scholarly tools.
Bundles multiple leading LLMs into a browser extension for web summarization and writing, similar to HyperWrite's research assistant.
Bundles multiple leading LLMs into a browser extension for web summarization and writing, similar to HyperWrite's research assistant.
Free / Open-sourceAI contract drafting, review, and redlining grounded in millions of real agreements
Free / Open-sourceAI contract drafting, review, and redlining grounded in millions of real agreements
Combines writing assistance and web automation inside a browser extension, but focuses heavily on scraping and monitoring tasks.
