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.
Omio: Compare and book trains, buses, flights and ferries
Free · In-app purchases
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.
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Combine features and design from your favorite apps.
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Generating… usually about a minute.
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
A product spec, phased build plan, differentiation notes, and screen references.
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Goal: Send a clear invoice after finishing a job.
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.
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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Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for Omio: Book Train, Bus & Flight: 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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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
Assumption to check: Confusing user interface for first-time users.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Inconsistent loading times for search results.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Limited filtering options for transport types.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Booking errors can be frustrating.
Validate with people who use this workflow before building.
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Omio: Compare and book trains, buses, flights and ferries Omio makes travel booking easy. Compare and book train, bus, flight and ferry tickets all in one place. With Omio, you can compare more than 3,000 trusted transport companies across 45+ countries, including Europe, the UK, the US, Japan, Southeast Asia and Brazil. Whether you are booking trains, buses, flights or ferries, Omio helps you find routes, compare prices, check travel times and keep your tickets ready in one app. Book popular trips like London to Paris, Paris to Amsterdam, Milan to Rome, Madrid to Barcelona, Tokyo to Kyoto, Kuala Lumpur to Singapore and Sao Paulo to Rio de Janeiro. Use Omio to book Japan bullet trains, including Shinkansen routes, plus buses, flights and ferries in Japan. You can also book buses and flights in Indonesia, Malaysia, Thailand, Singapore, Vietnam and Brazil. Why choose Omio? Compare 3,000+ companies: Search trains, buses, flights and ferries from top travel providers in one place. All-in-One Travel: Book tickets for trains, buses, flights or ferries quickly and compare prices across leading providers in Europe, the UK, the US and beyond. Easy to Use: Discover routes, compare options, pay securely and receive mobile tickets directly on your phone. Exclusive Ticket Discounts: Students, frequent travelers and more can save with special offers, referral programs and loyalty cards. Live Updates: Receive real-time trip updates, including platform changes, delays and gate information where available. Mobile Tickets: Add your train, bus, plane and ferry tickets directly to the app and access them whenever you need them. 24/7 Support: Omio provides international customer service, so you are covered wherever you travel. Unlock a free eSIM: With your Omio booking, enjoy 2 days of free mobile data, up to 1GB, with our partner Kolet. Travel with top train and rail providers Book train tickets with trusted providers across Europe, North America and Japan, including Amtrak, VIA Rail, Eurostar, SBB, SNCF, Trenitalia, Deutsche Bahn DB, Renfe, Italo, Iryo, National Rail, Japan Rail Pass and Shinkansen routes. Travel by train across Europe and the EU with high-speed and regional rail options. Book Eurostar routes between the UK and France, SNCF trains in France, Trenitalia in Italy, DB trains in Germany, SBB in Switzerland, Renfe in Spain, Amtrak in the US and Shinkansen rail journeys in Japan. Book bus tickets effortlessly Compare buses with major operators including FlixBus, ALSA, National Express, BlaBlaCar Bus, RegioJet, OurBus, RedCoach, Socibus, PKS, Avanza Bus, Rede Expressos, Itabus, MarinoBus and IberoCoach. Find bus routes across Europe, the UK, North America, Japan, Southeast Asia and Brazil. Omio helps you compare bus companies, prices and journey times before you book. Flight tickets in a few taps Compare flights with leading airlines including Ryanair, easyJet, British Airways, Wizz Air, Vueling, Eurowings and more. Book regional and international flights in selected markets across Europe, the UK, Japan, Southeast Asia and Brazil. Sail smoothly on ferries Book ferry tickets with reliable operators like Balearia, Blue Star Ferries, GNV, NLG, Positano Jet, Seajets and Travelmar, with ferry connections across Europe, the UK and island destinations. Join over 28 million travelers who trust Omio Omio helps travelers compare trains, buses, flights and ferries, plan trips and book tickets with confidence. The app has a 4.7/5 Trustpilot rating from over 1,500 reviews. Contact Need help? Visit help.omio.com/hc/en-us Stay Connected Follow Omio for travel updates, tips and exclusive offers: Facebook: https://www.facebook.com/Omio Instagram: https://instagram.com/Omio/ TikTok: https://www.tiktok.com/@omioglobal
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Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
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.