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
Greyhound: Buy Bus Tickets
Book low-fare bus tickets with more options
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.8
235,796 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/
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 Greyhound: Buy Bus Tickets: map the core Travel 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
Implement advanced filtering and sorting options.
Assumption to check: Difficulties in finding the right bus based on user preferences
Validate with people who use this workflow before building.
Hypothesis 2
Integrate multiple payment gateways for flexibility.
Assumption to check: Limited payment options available
Validate with people who use this workflow before building.
Hypothesis 3
Add GPS integration for real-time bus tracking.
Assumption to check: Lack of real-time tracking for buses
Validate with people who use this workflow before building.
Hypothesis 4
Design a more user-friendly onboarding process.
Assumption to check: Confusing user interface for first-time users
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
Book low-fare bus tickets with more options With the free, refreshed, and enhanced Greyhound app, you have more bus trip options, same low fares, and more new features than ever before. • Bus Trip Schedules – More options! Now you can see and book both Greyhound and FlixBus carrier schedules. More schedules mean more low fares on bus trips. • Seat Assignments – Choose the seat on the bus that you like the best. Want a window – sounds great. More of an aisle person – the choice is yours. A fee applies to select your preferred seat, or we’ll choose one for you • Show your ticket directly from the app. No more checking in, no more printing a ticket. Simply show the driver the QR code of your ticket in the app. • Live trip updates – all from the app in the palm of your hand • App only discount offers. We like it when you use our app, that’s why we send out app only email offers Some of our over 1900 bus routes across North America include: • Albany, NY to New York, NY • Atlanta, GA to Dallas, TX • Atlantic City, NJ to New York, NY • Boston to New York, NY • Chicago, IL to Minneapolis, MN • Dallas, TX to Houston, TX • Houston, TX to San Antonio, TX • Las Vegas, NV to Los Angeles, CA • Los Angeles, CA to Phoenix • Miami, FL to New York, NY • New York NY to Philadelphia, PA • San Antonio, TX to Monterrey, Mex For details on what personal information we collect and for what purpose, your privacy rights and how to exercise them, visit https://www.greyhound.com/privacy-policy
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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 Navigation
Zustand
Supabase
Axios
Expo Location
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.
