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.
App Overview
Yr.no
New Yr on iPhone and iPad is different from anything else you’ve seen in weather forecasting: Scroll through a beautiful and animated sky to see how the weather changes hourly, and get all the need-to-know details at ...
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.3
203 ratings · Top 30%
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.
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Build Kit
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A product spec, screen plans, and build steps for your coding agent.
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What's included17 files
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
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Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Screen plan
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.
Differentiate and validate
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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Free quick prompt For a smaller starting point
Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for Yr.no: 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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Opportunities
AI-GENERATED OPPORTUNITY HYPOTHESES
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
Enhance radar capabilities with animated overlays and detailed maps.
Assumption to check: Limited radar features compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Implement more accurate geolocation services.
Assumption to check: Inconsistent location accuracy
Validate with people who use this workflow before building.
Hypothesis 3
Allow users to customize notification types and frequencies.
Assumption to check: Limited customization for notifications
Validate with people who use this workflow before building.
Hypothesis 4
Introduce offline caching of weather data for access without internet.
Assumption to check: Lack of offline mode
Validate with people who use this workflow before building.
App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
App Store description
New Yr on iPhone and iPad is different from anything else you’ve seen in weather forecasting: Scroll through a beautiful and animated sky to see how the weather changes hourly, and get all the need-to-know details at the same time. And if there will be rainfall within the next 90 minutes we'll let you know through our now-cast. The weather visualization makes it a fun experience to check the weather – even when it’s raining! Check details day by day and hour by hour in the long-term forecast, or study the details in the graph. Under "Around you" you get an overview of air pollution, pollen spread and UV forecast, as well as the latest weather observations in your area. Forecasts are delivered by the Norwegian Meteorological Institute. ABOUT US: Yr is a weather service jointly produced by NRK and the Norwegian Meteorological Institute. Our primary goals are to secure life and property, while delivering useful and accurate weather forecasts to our users, preparing them for all kinds of weather. This year we are celebrating our ten-year anniversary, and with millions of users every day we are proud of being one of the most popular weather services in the world.
Written user reviews are not shown here. Check current App Store reviews >
Screenshots
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Build scope
Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Define the first version
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Set boundaries
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Check the hard parts
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
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BUILD KIT DIFFICULTY
Advanced
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.
