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 venerable U.S
$2.99 · 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 Wx for iPhone: map the core Weather 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 weather data accuracy
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Inconvenient location management
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Lack of severe weather alerts
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: No widgets available
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 venerable U.S. weather app Wx, named a Mac Gem by Macworld magazine, is now available for iPhone! Wx displays current conditions, forecasts, alerts, and radar for U.S. locations using high fidelity XML data from the U.S. National Weather Service. The app is designed for two specific types of customers: serious weather watchers who want detailed information and facts with no fuss, and casual users who want a fast, clean, and functional weather app that has low memory overhead and low CPU/battery usage. Wx lets you choose your location on an embedded map, and uses that to setup custom forecasts based on the latitude and longitude of the location. Forecasts include a 7-day summary "point" forecast, and a 7-day “pro” forecast that graphs temperature (actual and apparent), dew point, relative humidity, cloud cover, wind speed, wind direction, gust speed, 12-hour probability of precipitation, 6-hour liquid precipitation amount, and 6-hour snow amount. These forecasts are about as good as it gets if you need to plan work, sports, hobbies, and outdoor activities based on upcoming weather. With their high spatial resolution, the point and pro forecasts are especially useful in coastal and mountainous regions, where typical zone forecasts can be inaccurate. Wx also lets you receive current conditions data from nearby NWS observation sites (over 1700 available in the U.S. and its territories), get radar data from nearby NEXRAD radar sites, and receive warnings from nearby city- and county-based alert zones. Wx lets you bookmark and setup weather maps for quick reference. Choose from some default NWS maps and images, or provide the URL for any map of your choice and load it right in the app! If you have preferred weather providers, you can load your favorite maps and images right in Wx and keep them handy. Wx is crafted with attention to detail by a professional software developer with 29 years of experience, 15 years focused on developing weather software for OS X and 12 years writing apps for iOS devices. Wx has multiple levels of redundancy to handle severe weather events that can strain NWS servers, and even offers network settings for both Wi-Fi and cellular operation so that you can fine tune the app’s performance and bandwidth needs. Wx is also available for the iPad and OS X. See hrtapps.com for more info. ***NOTE*** If you need support or help, or have feedback, suggestions, or feature requests, please contact us via the support link (above) or on our website at hrtapps.com.
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.