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.
iWindRose² is a one-of-a-kind app, optimized for iPhone, iPad, iPod Touch and Apple Watch, which allows you to know all the main winds, their history and forecasts.
$1.99 · 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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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 iWindRose²: 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: Lack of detailed air quality data.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Limited customization options for notifications.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: No widget support for quick access.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Inconsistent performance on older devices.
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.
iWindRose² is a one-of-a-kind app, optimized for iPhone, iPad, iPod Touch and Apple Watch, which allows you to know all the main winds, their history and forecasts. Use this application to learn about the history, direction and forecast of the winds, especially present in maritime areas. It will be especially useful to all those who practice water sports such as surfing, kitesurfing, diving, etc. Consult the forecasts provided by the application before deciding to venture out to sea by boat. The most important features of iWindRose² are: • information about your geographic location; • real-time weather in your location (requires an internet connection); • set of information regarding the Sun and Moon (also available offline); • dynamic and adjustable compass rose; • description and history of the main winds; • wind and sea force scales; • winds and force scales searchable directly from Spotlight; • weather forecasts from multiple providers; • notification for each Meteomar forecast update; • notification center and home screen widgets (iOS 15 or higher required) for all forecasts; • 3D Touch shortcuts; • Siri Shortcuts for all predictions; • stickers for iMessage Available weather service providers: • MeteoAM; • LaMMA; • OpenWeatherMap; • VentuSky. Furthermore, thanks to compatibility with Apple Watch it is possible to have real-time weather forecasts always on your wrist (requires a connection with iPhone)! ================================= NOTE ================================= • DEGREES -1: the display of this writing (at the top right of the compass rose) means that the application is not able to correctly determine the rotation of the device. This may be due to incorrect functioning of the geolocation device (try closing and reopening the app) or to incorrect configuration of the location services within the "Settings" app of the device (in this case, check have enabled the "Compass calibration" option in Settings -> Privacy -> Location -> System Services). ATTENTION: all information on weather forecasts provided by iWindRose² is found through links to the respective official websites. Any deficiencies, inaccuracies or technical problems are to be attributed to the websites and not to the application. Any structural changes to the official sites could cause the application to function incorrectly, which will be resolved with a future update as soon as possible. Trademarks, names and logos belong to their respective owners. iWindRose² and its owner are not connected to the various weather forecast services. The author assumes no responsibility for the correctness, completeness or quality of the information provided by the application.
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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.