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.
Japan can be overwhelming to plan - unless you have the right guide! So you have come to the right place
$12.99 · 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 Jason Japan Travel: 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: Travel apps often lack personalized recommendations.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Difficulty in managing itineraries.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Limited offline access to information.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Poor user support and feedback mechanisms.
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.
Japan can be overwhelming to plan - unless you have the right guide! So you have come to the right place. Jason has done all the hard work for you, and it's all here for you. Japan is the ultimate travel destination – a mecca of culture, food, design and amazing experiences. It can be difficult to navigate as it’s unlike anywhere else you have ever been. Jason Japan is your ultimate Japan Travel Guide app created by much loved Australian stylist, designer and author Jason Grant. After he first visited Japan and immediately fell in love with the people and the places, he began to compile a list of his discoveries, recommendations from friends and his own exploration. Jason Japan has been designed as a comprehensive edit and to make things much easier when you travel to Japan. The app will evolve and grow. We will always be sharing the best of Japan. The guide features insider tips through his lens as a multi hyphenate creative. Jason Japan shares the best Japan has to offer – packed full of tips, travel hacks, recommendations and more. It includes useful information to know before you travel and will help you plan ahead. Designed to be user friendly and great on the go – with easy to navigate categories of must see places, including where to eat, drink, shop, stay, plus a heap of other cool things to see and do – complete with maps and directions. Focusing on Tokyo, Kyoto and Osaka, it also encourages you to explore like a local and head away from the crowds. Yes there are must see tourist spots but there is so much more to see. Step off the main streets into hidden lanes and side streets to discover hidden gems – sometimes getting lost is when you find the best things. This app has been created to be your best Japan travel companion in the palm of your hand.
Written user reviews are not shown here. Check current App Store reviews >
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.