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.
The official Gmail app brings the best of Gmail to your iPhone and iPad with helpful AI features, robust security, real-time notifications, multiple account support, and intelligent search that works across all your mail.
Free · In-app purchases
Evidence scope: #22 is the current overall US Grossing chart position. Category-chart positions shown in discovery are a separate scope. Revenue is a directional model estimate, not verified earnings.
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Combine features and design from your favorite apps.
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What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
A product spec, phased build plan, differentiation notes, and screen references.
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Goal: Send a clear invoice after finishing a job.
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.
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.
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Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for Gmail - Email by Google: map the core Productivity workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
The official Gmail app brings the best of Gmail to your iPhone and iPad with helpful AI features, robust security, real-time notifications, multiple account support, and intelligent search that works across all your mail. With the Gmail app, you can: • Make Gmail your default email app on iOS • Stay up to date on your latest packages, upcoming events, bills, and travel details with helpful summary cards • Declutter your inbox with built-in email subscription management • Use Gemini* in Gmail to summarize lengthy emails, craft or refine responses, or search your inbox to find what you’re looking for • Connect and switch between multiple email accounts from different providers • Automatically block more than 99.9% of spam, phishing, malware from ever reaching your inbox • Quickly add events to Google Calendar based on your emails with Gemini in Gmail • Find top deals faster with a personalized Promotions tab • Respond to emails faster with AI-powered Suggested Replies that understand the context of your emails and match your unique tone and style • Undo send for up to 30 seconds, to prevent embarrassing mistakes • Access Google Meet and Google Chat without leaving Gmail • Organize your mail by labeling, starring, deleting, and reporting spam • Swipe to archive/delete, to quickly clear out your inbox Gmail is part of Google Workspace, allowing you and your team to easily connect, create, and collaborate. You can: • Connect with coworkers via Google Meet or Google Chat, send an invite in Google Calendar, add an action to your task list, and more without leaving Gmail • Use Gemini in Gmail features like Help me write, Suggested Replies, AI Overviews, and Proofread to help you stay on top of work and take care of simple tasks, so you can be more efficient with your time • Stay safe. Our machine learning models block more than 99.9% of spam, phishing, and malware from reaching our users *Some Gemini features may require a Google One AI subscription. Internet connection required. Language and country availability may vary. Check responses for accuracy.
Written user reviews are not shown here. Check current App Store reviews >
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
Assumption to check: Spam filtering is often inadequate
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Search functionality can be slow
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Limited customization options for UI
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Complex settings navigation
Validate with people who use this workflow before building.
Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
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.