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
Great Death Valley Park
◆Universal App for iPhone xsmax/iPhone xs/iPhone xr/ iPhone X/ iPhone 8/ iPhone 8Plus/ iPhone 7/ iPhone 7Plus/ iPhone SE/ iPhone 6s/ iPhone 6s Plus/ iPhone 6/ iPhone 6 Plus/ iPhone 5/ iPhone/ iPad/ iPad Pro/ iPod.
$2.99 · In-app purchases
PRICE
$2.99
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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Combine features and design from your favorite apps.
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What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
What's included16 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 Great Death Valley Park: 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
Incorporate a community feature for sharing experiences.
Assumption to check: Limited user engagement features
Validate with people who use this workflow before building.
Hypothesis 2
Implement a real-time update system for trails and tips.
Assumption to check: Potentially outdated information
Validate with people who use this workflow before building.
Hypothesis 3
Add offline maps and downloadable content.
Assumption to check: No offline access
Validate with people who use this workflow before building.
Hypothesis 4
Offer user-customizable features, such as saved favorites.
Assumption to check: Lack of personalization options
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
◆Universal App for iPhone xsmax/iPhone xs/iPhone xr/ iPhone X/ iPhone 8/ iPhone 8Plus/ iPhone 7/ iPhone 7Plus/ iPhone SE/ iPhone 6s/ iPhone 6s Plus/ iPhone 6/ iPhone 6 Plus/ iPhone 5/ iPhone/ iPad/ iPad Pro/ iPod. *** Death Valley National Park Features***** Looking for an unforgettable tourism experience in National Park? Just go with us. This National Park travel guide provides hotels, restaurants, entertainment, shopping, most popular tourism sports and more. *** General Information Welcome provides information about National Park, It involves History, Facts. ***Campgrounds & Trails **Campgrounds, Address, Phone Numbers, Information, Facts, Pictures, Map, Directions, Rout Map and Near Search. *Incredible easy to use. *Simple design and detailed parks information! *GPS+Locations! *Get directions from current location to State Parks & National Parks. *Search Parks! ****POI Search**** ◆ Local search Search also acts as a Guide to help user in finding the directions from one place to another via GPS enabled Map. ◆ Find list of available Hotels, Attractions, Restaurants, Bars, Hospitals, Drug Stores, Banks, ATM's, Shopping malls, Pizza huts, Gas Stations and Railway stations etc. ◆ Predefined & Local search searches are available. It brings your Device one step closer to a full feature GPS system. It has a database pre-populated with more than 1200 Local search categories. You can find the places you are looking for without any typing. ***High Quality Images*** This Gallery consists of several amazing Beautiful pictures of location attractions and its images.
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
axios
react-navigation
react-native-maps
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.
