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
PhillyHub: Philadelphia Guide
Philadelphia doesn't need hype
$1.99 · In-app purchases
PRICE
$1.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
N/A
No ratings yet
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 included15 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 PhillyHub: Philadelphia Guide: 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
Focus on partnerships with local businesses to enhance inventory.
Assumption to check: Lack of comprehensive listings
Validate with people who use this workflow before building.
Hypothesis 2
Implement robust testing and user feedback loops.
Assumption to check: Poor user reviews due to bugs
Validate with people who use this workflow before building.
Hypothesis 3
Simplify navigation by reducing steps to find listings.
Assumption to check: Difficult navigation
Validate with people who use this workflow before building.
Hypothesis 4
Enhance in-app messaging for better host-guest interactions.
Assumption to check: Limited communication features
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
Philadelphia doesn't need hype. It's hosting the world this summer — Soccer 2026, America's 250th birthday, and a July 4th you'll be telling people about for the rest of your life. PhillyHub is the only city guide built specifically for this moment. One download. No account. No subscription. No fluff. WHAT'S INCLUDED FREE - Interactive map with 100+ pinned locations across the city - Landmarks & neighborhoods — from the Art Museum steps to Fishtown - 20 hand-picked food spots to eat like you live here - Events calendar — Soccer 2026 match days, America250 celebrations, July 4th - Transit tab — SEPTA routes, lines, and tips for getting around - Community section — what locals are saying right now - GPS-enabled location for real walking distances - Full app in 7 languages: English, Spanish, French, German, Arabic, Korean, Chinese UPGRADE TO LOCAL'S GUIDE 5 curated walking tours with stop-by-stop directions 6 hidden gems the tourists won't find on their own 60 additional restaurant picks — James Beard winners, PhillyMag 50 Best, Philadelphia Inquirer selections This isn't a list someone copy-pasted from Yelp. These are real places, real picks, from people who've spent years eating their way across this city. BUILT FOR THE SUMMER OF 2026 Philadelphia is the center of the world right now. Millions of visitors from 30+ countries. Massive crowds. A city that's been waiting decades for a moment like this. If you're here for the matches, for the 250th, or just because you finally booked that trip — you need a guide that keeps up with you. PhillyHub was designed for this. Not repurposed. Not updated. Built for it. NO NONSENSE No login required. No account needed. No tracking of who you are. Open the app, find what you need, go. Download PhillyHub. Own it forever. The city's waiting.
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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
Expo
React Navigation
Axios
Redux
React Native Maps
React Native Image Gallery
BUILD KIT DIFFICULTY
Intermediate
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.
