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
Route 66: Points of Interest
This app details the path of Route 66
$3.99 · In-app purchases
PRICE
$3.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.8
99 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 included15 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 Route 66: Points of Interest: 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 a recommendation engine based on user preferences and location.
Assumption to check: Users find it hard to discover new attractions.
Validate with people who use this workflow before building.
Hypothesis 2
Add features for users to submit reviews and photos.
Assumption to check: Limited user-generated content.
Validate with people who use this workflow before building.
Hypothesis 3
Simplify map interactions and provide clearer directions.
Assumption to check: Navigation can be confusing.
Validate with people who use this workflow before building.
Hypothesis 4
Provide a detailed explanation of what premium features offer.
Assumption to check: In-app purchases can be unclear.
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
This app details the path of Route 66. In its glory days, Historic Route 66 was a symbol of freedom and opportunity to travelers across the nation. From Illinois to Arizona, history lovers have preserved many of the attractions so unique to the "Mother Road." Experience them for yourself and relive the glory days of one of America’s most historic byways by visiting these restored quirky restaurants, gas stations, motels and other sites along Historic Route 66. Without so many others who have rediscovered Route 66, these places may not have survived to enthrall travelers today. Turn back the clock and discover these gems on Historic Route 66. This app. provides: - 500+ Route 66 destinations to discover - GPS locator assistance / automatic "check in" - Links to learn more - Sharing: Facebook, X, SMS, Email, etc. - Insert your photos into the app: a photo journal of your trip. - Photo Organizer: This app serves as a photo organizer for your Route 66 adventure. "Retracing Route 66 is an exciting adventure. Without this app. I would have been lost... many times."
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 Navigation
Expo Location
Axios
React Native Maps
Zustand
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.
