App Overview

Grammarly: AI Writing App icon

Grammarly: AI Writing App

Grammarly, Inc · Productivity

Grammarly for Safari is your always-on assistant for clearer, more compelling communication

Free · In-app purchases

PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
N/A
No ratings yet

Evidence scope: No current overall US chart position is available. Category-chart positions shown in discovery are a separate scope. Revenue is a directional model estimate, not verified earnings.

Build your own version

Build Kit

Make this idea yours

A product spec, screen plans, and build steps for your coding agent.

First kit free with a verified email

Add to a Remix

Combine features and design from your favorite apps.

Kit ready. Verify your email to download it.

What's included17 files

A product spec, phased build plan, differentiation notes, and screen references.

  • START_HERE
  • AGENTS
  • EVIDENCE
  • SPEC
  • BUILD_PLAN
  • DIFFERENTIATION
  • skills/
  • screens/
Preview a sample Build Kit No email needed

Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.

Feature spec

Goal: Send a clear invoice after finishing a job.

  • Add a client, line items, a due date, and payment instructions.
  • Preview the total before exporting a PDF.
  • Keep an editable draft if export fails.

Screen plan

Invoice editor: Client at the top, editable line items in the middle, total and preview action at the bottom.

States: Empty draft, validation errors beside each field, exporting, and a retry action that preserves the draft.

Differentiate and validate

Hypothesis: Contractors need faster repeat invoices more than more templates.

First experiment: Test duplicating a previous job with five contractors. Watch where they hesitate before expanding the feature set.

The full kit adds a phased build plan, evidence notes, tool prompts, and implementation guidance. It is a plan for your coding agent, not a finished app.

Usage: Mechanics are fair game; never reuse the original name, branding, assets, or verbatim copy.

JavaScript is required to complete mailbox verification.

Free quick prompt For a smaller starting point

Quick prompt

> SELECT BUILD PLATFORM:

Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.

// RORK SYSTEM PROMPT
Rork plan preview for Grammarly: AI Writing App: map the core Productivity workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
            

Preview ready. Verify your email to reveal and copy the full prompt.

JavaScript is required to complete mailbox verification. Return to this prompt preview.

Continue in Rork copies the full prompt to your clipboard first, then opens Rork in a new tab.

Continue in Rork >

Affiliate link: CloneChart may earn a commission at no extra cost

Opportunities

AI-GENERATED OPPORTUNITY HYPOTHESES

These are generated suggestions, not verified review quotations. Check current App Store reviews and speak with users before treating a possible gap as a requirement.

Hypothesis 1

Implement user feedback to train the AI for better suggestions.

Assumption to check: Users find AI suggestions inaccurate or irrelevant.

Validate with people who use this workflow before building.

Hypothesis 2

Add support for popular document formats and integrations.

Assumption to check: Limited integrations with other writing tools.

Validate with people who use this workflow before building.

Hypothesis 3

Offer more compelling features in the free version to attract users.

Assumption to check: Premium features may not justify the cost for some users.

Validate with people who use this workflow before building.

Hypothesis 4

Provide contextual help and examples for suggestions.

Assumption to check: Users want more detailed explanations for corrections.

Validate with people who use this workflow before building.

App evidence

Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.

App Store description

Grammarly for Safari is your always-on assistant for clearer, more compelling communication. It helps you brainstorm ideas, overcome writer’s block, and refine your writing with confidence, precision, and ease. Powered by advanced AI, Grammarly does more than correct mistakes. It generates one-click drafts to help you get started, builds organized outlines, sharpens tone for any audience, and adapts to your goals as you write—whether you’re working on a school assignment, a business email, or anything in between. With built-in plagiarism detection and AI content checks, Grammarly supports originality while helping you write faster, sound sharper, and communicate more effectively—anywhere you write online ► How it works Grammarly works right where you do—in your browser—offering real-time feedback as you type in emails, documents, and more. It goes beyond surface-level edits by offering suggestions that help you organize your ideas, strengthen your arguments, and tailor your tone to your audience. Whether you’re tightening a sentence or reworking a full draft, Grammarly adapts to your goals, context, and intent in real time. You can apply suggestions instantly or expand them to see the “why” behind each one—putting you in control and helping you build stronger writing habits with every edit. ► What’s included? ~ Free Everything you need to write more clearly and confidently: • Real-time grammar, spelling, and punctuation feedback • Suggestions to improve clarity and tone • Auto-citations in APA, MLA, or Chicago style • Built-in AI to help you brainstorm, draft, and rewrite content ~ Pro Advanced support for high-impact writing: • Sentence rewrites to improve clarity, flow, and engagement • Tone, formality, and word choice enhancements • Feedback tailored to academic, technical, or professional contexts • Audience insights to guide how your message is received • AI content detection and plagiarism checks for originality • Team features like style guides and tone profiles (for business users) ► Terms and Conditions By installing the extension, you agree to and acknowledge: www.grammarly.com/terms www.grammarly.com/privacy-policy ► Works where you write Grammarly integrates directly into your browser—no copying and pasting needed. Get writing support across: • Google Docs • Gmail • LinkedIn • And 500,000+ apps and websites ► Get Grammarly on your desktop Want Grammarly in Word, Outlook, Slack, and more? Download Grammarly for Windows or Mac: www.grammarly.com/desktop ► Explore docs, Grammarly’s new AI writing surface Looking for a powerful space to write and refine your ideas? Docs is Grammarly’s dedicated writing surface built for deep focus and support at every step. Unlike the Safari extension or desktop app, it’s your all-in-one hub for strategic insights, from audience reactions to grade predictions. Go from blank page to polished piece—all in one intelligent space. Learn more about docs: www.grammarly.com/docs ► Trusted by millions of users “Grammarly ensures your messages are professional and grammatically correct by offering spell-checking, tone suggestions, and even vocabulary hints.” —Forbes “It’s the go-to service for fixing grammar, punctuation, and awkward sentences for professionals, college students, and people who write for a living.” —Inc. “Unlike basic spell checkers, Grammarly is a complete writing assistant app.” —PC Mag ► We value your trust Your data privacy and security are at the core of everything we do. Learn more about our user-first approach to trust and safety: www.grammarly.com/trust California residents, please see the California Privacy Notice: https://www.grammarly.com/privacy-policy#sectionSingleColumn_47y4NWiOf89wt12wcc6a74

Written user reviews are not shown here. Check current App Store reviews >

Screenshots

< Scroll to see more >

Build scope

Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.

Define the first version

Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.

Set boundaries

Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.

Check the hard parts

Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.

SUGGESTED BUILD STACK
React Native
Expo
Supabase
Zustand
React Navigation
TypeScript
BUILD KIT DIFFICULTY
Advanced

From the Build Kit assessment.

A reliable timeline needs an agreed scope and a technical check. Ask your agent to estimate the phases in BUILD_PLAN.md after that review.