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
Truck & RV Fuel Stations
This app shows over 2,185 Loves, Petro, Pilot, Flying J, Travel America (TA), AmBest, Road Ranger, Maverik and Sapp Brothers fueling stations in the US and Canada
$0.99 · In-app purchases
PRICE
$0.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.3
1,607 ratings · Top 30%
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 should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
What's included18 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 Truck & RV Fuel Stations: 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
Encourage user engagement with gamification and rewards for submissions.
Assumption to check: Limited user-generated content like reviews and photos
Validate with people who use this workflow before building.
Hypothesis 2
Implement an offline mode with cached data for areas without signal.
Assumption to check: Difficulty finding stations in remote areas
Validate with people who use this workflow before building.
Hypothesis 3
Integrate user-reported price updates and verification system.
Assumption to check: Inconsistent data accuracy for fuel prices
Validate with people who use this workflow before building.
Hypothesis 4
Allow users to filter map markers by fuel type and amenities.
Assumption to check: No map customization 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
This app shows over 2,185 Loves, Petro, Pilot, Flying J, Travel America (TA), AmBest, Road Ranger, Maverik and Sapp Brothers fueling stations in the US and Canada. Included in the description are RV facilities (RV Fuel island, RV dump, propane) as well as the street address plus interstate exits, food service, and number of truck parking places when available. Also available with each location is the weather, Internet search of the location, and if available access to the companies' web site. - Tapping on a fuel stations map pin shows the driving distance and time to the fuel station from your current location. - Send location info directly to our Road Trip Planner app. - Import GPX files; this makes it much easier to find locations along your route. - Show a route between your location and the fuel station by tapping on the route button. - Import and export your list of Favorites. - Database is updated monthly, subject to user submissions.
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
Supabase
react-navigation
axios
redux
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.
