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
Travel Brief
Travel Brief is a simple, purpose-built app designed for pilots and crew who want one reliable place to store essential layover information.
$4.99 · In-app purchases
PRICE
$4.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 5.0
1 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.
Build your own version
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 Travel Brief: map the core Travel workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
Preview ready. Verify your email to reveal and copy the full prompt.
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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 user-friendly interface for easy trip management and visibility.
Assumption to check: Difficulty in managing multiple trips and itineraries.
Validate with people who use this workflow before building.
Hypothesis 2
Enhance search with filters like price, ratings, and availability.
Assumption to check: Limited search functionality for destinations.
Validate with people who use this workflow before building.
Hypothesis 3
Streamline messaging with a clearer interface and quicker responses.
Assumption to check: In-app messaging can be confusing and slow.
Validate with people who use this workflow before building.
Hypothesis 4
Provide clear information on benefits and features of subscriptions.
Assumption to check: Subscription model may not be clear to 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
Travel Brief is a simple, purpose-built app designed for pilots and crew who want one reliable place to store essential layover information. Instead of relying on memory, notes, or screenshots, Travel Brief lets you quickly capture the details you’re given at check-in — shuttle schedules, meal hours, alcohol cutoffs, Wi-Fi info, and more — all in one clean, easy-to-use layout. Once your layover is saved, you can instantly share the information with other crew members by email, ensuring everyone is on the same page. Whether you’re flying frequently or just want a better system than notes and texts, Travel Brief helps reduce friction, save time, and avoid missed details. Built by a pilot, for pilots. Key Features Quickly enter hotel and layover details at check-in Track shuttle times, meal hours, and alcohol cutoff times Store Wi-Fi, amenities, and custom notes Email layover details to crew members Simple, distraction-free interface Designed for fast, real-world use on the road
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-query
shadcn/ui
BUILD KIT DIFFICULTY
Starter
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.
