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
Grubhub for Drivers
Become a Grubhub Driver and deliver customers the food they love from their favorite restaurants
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.7
175,634 ratings · Top 15%
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.
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Build Kit
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A product spec, screen plans, and build steps for your coding agent.
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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/
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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 Grubhub for Drivers: map the core Business workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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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
Provide a clearer breakdown of earnings, tips, and expenses.
Assumption to check: Drivers find the earnings tracking confusing and not detailed enough.
Validate with people who use this workflow before building.
Hypothesis 2
Implement a more organized notification system with actionable buttons.
Assumption to check: Notifications can be overwhelming and not actionable.
Validate with people who use this workflow before building.
Hypothesis 3
Optimize performance to handle high traffic more efficiently.
Assumption to check: The app can be slow during peak hours, causing frustration.
Validate with people who use this workflow before building.
Hypothesis 4
Allow users to customize their profile settings more extensively.
Assumption to check: Users want better customization options for their profiles.
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
Become a Grubhub Driver and deliver customers the food they love from their favorite restaurants. With the largest restaurant and diner network, Grubhub offers more opportunities to make money on your own schedule. Why drive with Grubhub? MAKE GREAT MONEY Earn competitive money and keep 100% of your tips as a Grubhub delivery person. WORK WHEN YOU WANT Work part time, full time or in your spare time. You can schedule your hours in advance or have the flexibility to deliver on short notice. Create a schedule that works for you! BE YOUR OWN BOSS Grubhub for Drivers is built to help you earn — make deliveries, track your hours, see how much you’ve made and manage your schedule. NO CAR NEEDED Whether you’re a driver, biker or delivering on your moped, the Grubhub for Drivers app was built to help you succeed. EASY SIGN UP Download the Grubhub for Drivers app and sign up to work at driver.grubhub.com. We’ll walk you through each step along the way. MORE ORDERS, MORE OPPORTUNITIES TO EARN Grubhub has the largest restaurant and diner network of any other food delivery platform. Grubhub drivers are earning money in cities across the US, including: Albany, Atlanta, Austin, Baltimore, Boston, Bridgeport, Chicago, Dallas, Denver, Hartford, Houston, Las Vegas, Los Angeles, Miami, Minneapolis, Nashville, New York City, Orlando, Philadelphia, Phoenix, Pittsburgh, Portland, San Diego, San Francisco, San Jose, Seattle, St. Louis, Sacramento, Tampa, Washington DC … and many more.
Written user reviews are not shown here. Check current App Store reviews >
Screenshots
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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
React Navigation
Zustand
Axios
BUILD KIT DIFFICULTY
Expert
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.
