a0.dev records 18,569 monthly visits with -35.9% month-over-month growth and Freemium pricing. Grammarly records 58,867,412 monthly visits with -1.5% growth and Freemium pricing.
Build and ship real iOS & Android apps from a chat prompt
Cross-platform AI writing assistant delivering real-time grammar correction, tone alignment, authorship tracking, and team style guides.
| Dimension / Metric | | |
|---|---|---|
| Official Domain | a0.dev | grammarly.com |
| Pricing Model | Freemium | Freemium |
| Monthly Visits | 18.57K (18,569) | 58.87M (58,867,412) |
| MoM Traffic Delta | -10.42K (-35.9%) | -916.08K (-1.5%) |
| Primary Market & Share | 🇮🇳 India (21.9%) | 🇺🇸 United States (51.9%) |
| Direct Visits / mo | 11.26K | 25.4M |
| User Rating | 4.2 | 4.4 |
| Supported Platforms | Website | Website |
Build and ship real iOS & Android apps from a chat prompt
Chat with an agent that writes and edits your mobile app's code in real time, so changes appear as you describe them.
a0.dev handles the build, creates your App Store Connect listing, and uploads the app for you.
Set up in-app payments and subscriptions without wiring together separate payment tooling.
Develop against Convex or Supabase backends and use built-in APIs for AI inference and image generation.
Cross-platform AI writing assistant delivering real-time grammar correction, tone alignment, authorship tracking, and team style guides.
Works natively inside Chrome, Safari, Firefox, Edge, Windows, Mac, Google Docs, MS Office, and mobile keyboards to flag grammar mistakes, rewrite tangled sentences, and shift tone toward confident, empathetic, or executive registers.
Deploys contextual AI agents that predict how a target audience will react to a draft, locate credible supporting citations, grade essays against rubric criteria, and generate drafts using up to 2,000 monthly prompts on Pro.
Scans text against billions of web pages and academic databases for accidental plagiarism, detects AI-generated passages, and logs transparent document provenance via Authorship reports in Google Docs and Word.
Enables teams on Pro and Enterprise plans to codify company terminology, ban deprecated jargon, enforce inclusive language, insert shared Snippets, and surface internal company definitions inline.
SpecialistOutstanding for context-aware translation and professional writing refinement, but not designed as a dedicated grammar checker.
SpecialistOutstanding for context-aware translation and professional writing refinement, but not designed as a dedicated grammar checker.
Excels at heavy paraphrasing and text rewriting, but offers less seamless inline real-time proofreading across all apps.
Excels at heavy paraphrasing and text rewriting, but offers less seamless inline real-time proofreading across all apps.
Builds polished full-stack web applications with incredible UI design, though less specialized for native mobile stores.
Builds polished full-stack web applications with incredible UI design, though less specialized for native mobile stores.
SpecialistOffers full programmatic control and cloud execution via an AI agent, rather than pure no-code mobile generation.
SpecialistOffers full programmatic control and cloud execution via an AI agent, rather than pure no-code mobile generation.
Converts conversational prompts into hosted web and mobile applications with automated hosting and deployment.
Converts conversational prompts into hosted web and mobile applications with automated hosting and deployment.
Provides strong multilingual grammar and style checking across apps, but offers fewer advanced generative AI features.
Provides strong multilingual grammar and style checking across apps, but offers fewer advanced generative AI features.
Offers an interactive in-browser full-stack development environment, but focuses primarily on web apps over native mobile.
Offers an interactive in-browser full-stack development environment, but focuses primarily on web apps over native mobile.
SpecialistProvides industry-leading UI component generation, though you must handle full mobile packaging and app store publishing separately.
SpecialistProvides industry-leading UI component generation, though you must handle full mobile packaging and app store publishing separately.
Delivers deeper manuscript analysis and structural reports, but has a steeper learning curve than Grammarly.
Delivers deeper manuscript analysis and structural reports, but has a steeper learning curve than Grammarly.
SpecialistAI academic writing assistant that edits, cites, and checks your manuscript right where you write
SpecialistAI academic writing assistant that edits, cites, and checks your manuscript right where you write
Specializes specifically in generating native Swift and Kotlin mobile applications directly from text prompts.
Specializes specifically in generating native Swift and Kotlin mobile applications directly from text prompts.
Generates fully functional web applications with integrated databases and payments from text prompts.
Generates fully functional web applications with integrated databases and payments from text prompts.
