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.
the app contains nationwide emergency numbers for the following countries:
$0.99 · 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.
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Combine features and design from your favorite apps.
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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 NINU: 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: Limited destination suggestions and search functionality
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: In-app messaging features are lacking
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Poor onboarding experience for new users
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Subscription model may confuse users
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.
the app contains nationwide emergency numbers for the following countries: ● north america: canada, usa ● europe: austria, belgium, denmark, germany, france, ireland, italy, luxembourg, netherlands, norway, spain, sweden, switzerland, united kingdom in addition, the app also provides tools that may be needed in emergency situations a first aid audio guide provides chest compressions instructions with a 100 bpm counter. with the quick search you can quickly google important numbers such as pharmacy emergency service. the city only has to be entered once and it will be saved. you can save these searched links easily to you 'contacts' list. this keeps you more prepared. business users can create a phonebook for their customers. customers and users have the option to scan and load the phonebook into their ninu app using a qr code. this is an easy way for companies, hotels, cities, or any other business to keep their contacts organized and get them to customers. you can also create your own phone book to make calls or send sms. just send a pre-filled sms or whatsapp with your location, a pre-filled personal data mask, or a current data mask, to these created contacts, provided that all services are activated. current data mask contains data about a current journey, trip or situation (e.g. skiing). the personal data mask contains information about the person, such as name, blood type, previous illnesses, required medication and other special features. data masks can be sent via sms or whatsapp. some countries offer emergency sms services where the data mask functions can also be used. the following numbers are included: ● police, fire department, emergency (all countries) ● emergency doctors care (most countries) ● transporting to hospital (most countries) the other countries to choose from often have often more or similar numbers, such as e.g. poison control, mental health care, help for kids and many more. sources: government websites of the states, and more.
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.