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.
App Overview
Google Drive
Google Drive lets you securely store, intelligently organize and collaborate on files and folders from anywhere, on any device.
Free · In-app purchases
OVERALL US RANK
#59
Free · all categories
REVENUE (Est)
$112K/mo
$64K - $161K
RATING
★ 4.8
7,906,005 ratings · Top 5%
Evidence scope: #59 is the current overall US Free chart position. 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
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A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
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What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
What's included18 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.
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.
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Free quick prompt For a smaller starting point
Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for Google Drive: 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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App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Screenshots
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App Store description
Google Drive lets you securely store, intelligently organize and collaborate on files and folders from anywhere, on any device. With Drive, you can: • Safely store and access your files anywhere • Edit and store 100+ file types, including PDFs, Office files, videos and more • Scan and upload paper documents using your device’s camera • Quickly access recent and important files • Search for files by name and content • Filter files by type, last modified date and more • Share and set permissions for files and folders • View your content on the go while offline • Receive notifications about important activity on your files Google Workspace subscribers have access to additional Drive functionality, including: • Using AI to summarize information, retrieve quick facts, and surface insights from your files • Security and management controls for admins to help meet data compliance needs • Sharing files and folders directly with groups or teams within your organization • Creating a shared drive to store all of your team’s content • Requesting electronic signatures and manage vendor agreements, customer contracts, and more Learn more about Google Apps update policy: https://support.google.com/a/answer/6288871 Google accounts get 15GB of storage, shared across Google Drive, Gmail, and Google Photos. For additional storage, you can upgrade to Google Workspace or Google One as an in-app purchase. Storage subscriptions purchased from the app will be charged to your iTunes Account, and automatically renew unless auto-renew is turned off at least 24 hours before the end of the current period. Subscriptions and auto-renewal may be managed by going to iTunes Account Settings after purchase. Google Privacy Policy: https://www.google.com/intl/en_US/policies/privacy Google Drive Terms of Service: https://www.google.com/drive/terms-of-service Follow us for more: X: https://x.com/googleworkspace and https://x.com/googledrive LinkedIn: https://www.linkedin.com/showcase/googleworkspace Facebook: https://www.facebook.com/googleworkspace/
Written user reviews are not shown here. Check current App Store reviews >
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
Offer competitive free storage and additional incentives for referrals
Assumption to check: Limited storage space for free users
Validate with people who use this workflow before building.
Hypothesis 2
Simplify sharing with one-tap sharing options
Assumption to check: Complex sharing options can be confusing
Validate with people who use this workflow before building.
Hypothesis 3
Implement faster indexing and smarter search algorithms
Assumption to check: Search functionality can be slow with large files
Validate with people who use this workflow before building.
Hypothesis 4
Enhance syncing capabilities and provide real-time updates
Assumption to check: Occasional sync issues across devices
Validate with people who use this workflow before building.
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
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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.
