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
Postmates - Food Delivery
Delivery from your favorite restaurants, grocery stores, and more! 24/7, 365 days a year
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.8
2,049,628 ratings · Top 5%
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 included17 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 Postmates - Food Delivery: map the core Food & Drink 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
Expand partnerships with local restaurants.
Assumption to check: Limited restaurant options in some areas
Validate with people who use this workflow before building.
Hypothesis 2
Improve logistics and real-time tracking.
Assumption to check: Inconsistent delivery times
Validate with people who use this workflow before building.
Hypothesis 3
Implement a loyalty program to reduce fees for regular customers.
Assumption to check: High delivery fees can deter users
Validate with people who use this workflow before building.
Hypothesis 4
Enhance the search functionality and user interface.
Assumption to check: Difficulties in navigating the app
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
Delivery from your favorite restaurants, grocery stores, and more! 24/7, 365 days a year. Postmates gets you what you want, when you want it. FIND YOUR FAVORITE RESTAURANTS Browse nearby restaurants. Choose from a variety of selections to order: Pizza. Burritos. Burgers. Sushi. Chinese food. Skip the line and reservations. Order from any menu and add it to your cart with a few taps. Get it as soon as possible or schedule your delivery in advance and set when you want it delivered GROCERY, CONVENIENCE, RETAIL AND MORE Get household items from your favorite local stores, supermarkets, and even pet stores. Order baby food, diapers, pharmacy, beauty products and cosmetics. Grab your staples like bread, eggs, milk, meats, fruits and veggies. All delivered to your door. REAL-TIME ORDER TRACKING Track your food order in app as it heads your way. See the estimated delivery time to your address. Get notified when your order arrives. EASY PICKUP or NON-CONTACT DELIVERY You can order food ahead for Pickup instead of just ordering delivery. Select Pickup, add food items to your cart and go to the restaurant to get your food. Choose no-contact delivery option and have deliveries left at your doorstep. PROMOTIONAL TERMS $10 off your next order terms and conditions: Up to $10 off your next order. Offer valid when you download and log in the new Postmates app only. Tax & fees still apply. Store and offer availability based on user location. Limit 1 use per customer. Offer is not sharable or transferable. Offer only valid for 14 days from log in to the new Postmates app. Exclusions may apply. Offer cannot be redeemed for cash or like exchanges. Postmates reserves the right to modify or terminate this offer at any time without notice.
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
Zustand
Axios
React Navigation
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.
