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
Trip.com: Book Flights, Hotels
Welcome to your new all-in-one travel app! Trip.com makes planning your next holiday simple - not only do we have thousands of flight routes and hotels, but we also offer car hire, tour tickets, and other travel must-haves
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.6
37,380 ratings · Top 15%
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 Trip.com: Book Flights, Hotels: 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
Optimize API calls and use caching for faster results.
Assumption to check: Long loading times for search results
Validate with people who use this workflow before building.
Hypothesis 2
Implement advanced filters such as price range, amenities, and user ratings.
Assumption to check: Limited filtering options for search results
Validate with people who use this workflow before building.
Hypothesis 3
Create a more robust review system with verification and detailed feedback options.
Assumption to check: Inconsistent user reviews and ratings
Validate with people who use this workflow before building.
Hypothesis 4
Integrate a live chat feature for instant communication with support.
Assumption to check: Difficulties in customer support response times
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
Welcome to your new all-in-one travel app! Trip.com makes planning your next holiday simple - not only do we have thousands of flight routes and hotels, but we also offer car hire, tour tickets, and other travel must-haves. Need an e-sim or travel insurance? We've got you covered. But there are multiple other reasons to use our app: #You Can Trust Us We've been rated as 'Great' on Trustpilot. Download now and browse with confidence - thousands of Trip.com users have had a positive experience with us! #Deals and Rewards Book with our app, earn Trip Coins travel credit, and save money on future trips. Keep booking to increase your membership tier and get exclusive benefits like free airport lounge access. #Free 24/7 Customer Support English-speaking agents are on-hand to answer your query within 30 seconds - and you can call us through the app for free. #Your Favorite Travel Brands Book your flights with British Airways, Virgin Atlantic or EasyJet, and your stay in Hilton, Marriott, or Premier Inn hotels. You can also book trains across the country with Network Rail - in fact, all major companies are available on Trip.com. #Multiple Payment Options Credit card (incl. Amex), debit card, PayPal, Google Pay, Apple Pay - we're confident you can use your preferred payment method with us. What Makes Trip.com Special? #Flights Plans changed? Enjoy our flexible flight cancellation options. We also offer exclusive app-only discounts, live status updates, and price alerts notifying you when flights are at their cheapest. #Hotels If you find a hotel cheaper elsewhere, we'll match the price. If there's an issue where you can't check in, we'll find you a new hotel. And if you book a flight with us, your hotel can cost up to 25% less! #Trains We sell train tickets in the UK, Europe, and across the globe! Our split ticketing feature makes rail travel even cheaper, and we don't charge any additional payment fees. #And Other Travel Essentials Book your guided tour, visit a famous (or less famous) attraction, rent a car, buy your e-sim or travel insurance, and more! Download the all-in-one travel app and book your next adventure!
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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
React Native
Expo
Supabase
React Navigation
Axios
Redux
BUILD KIT DIFFICULTY
Expert
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.
