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
HeyWeather: Accurate Forecast
heyweather delivers more than just forecasts; it offers a personalized weather experience tailored to your preferences
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.5
5,808 ratings · Top 15%
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 should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
What's included18 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 HeyWeather: Accurate Forecast: 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
Implement a more reliable weather API for better accuracy.
Assumption to check: Users often report inaccuracies in weather forecasts.
Validate with people who use this workflow before building.
Hypothesis 2
Allow users to customize notification preferences.
Assumption to check: Notifications can be overwhelming for users.
Validate with people who use this workflow before building.
Hypothesis 3
Simplify the UI to focus on essential data.
Assumption to check: The UI can feel cluttered with too much information.
Validate with people who use this workflow before building.
Hypothesis 4
Provide more widget sizes and styles for user preference.
Assumption to check: Limited customization options for widgets.
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
heyweather delivers more than just forecasts; it offers a personalized weather experience tailored to your preferences. plan your day with confidence, customize your weather widgets, check weather maps and stay informed with real-time notifications—all in one app! - extended forecasts get 16-day daily and 400-hour hourly forecasts with heyweather, your go-to app for accurate weather predictions. - radar and maps explore temperature, rain intensity, cloud coverage, and more with interactive maps for current and future hours. - customizable widgets* heyweather provides limitless home screen and lock screen widget customization, and with each updates adding more options. - apple watch app** experience a sleek and modern weather app design on your apple watch! choose from a variety of widgets and customize your apple watch with plenty of complications. - customizable notifications receive either a daily forecast summary or custom notifications—it's up to you! - live activity and dynamic island stay informed about real-time precipitation with live updates on your lock screen or dynamic island. updates continue as long as the rain persists in your area. - air quality index monitor air quality with current and up-to-7-day forecasts. - multiple forecast sources pick the best premium forecast source for your location and enjoy accurate weather info. - sunrise, sunset, and moon phases discover sunrise, sunset, moon phases, and other astronomical information up to 28 days ahead, all presented in a beautiful design. - time travel, climate data check past weather or get monthly averages easily within the app. - parlez-vous français? - ¿tú hablas español? - tu parli italiano? - du sprichst deutsch? - 你会说中文吗？ - 日本語を話せますか - 당신은 한국어를 말합니까? heyweather speaks your language—over 20 of them. use it in your preferred language. - accessibility and inclusion fully supports all accessibility features provided by apple, ensuring an inclusive experience for all users. - multiple cities at a glance add cities to your list for quick access and stay informed about weather conditions wherever you or your loved ones are. - privacy-focused your data is secure. we respect your privacy and do not store personal information unless you opt for sever weather notifications. - no ads, ever! heyweather is ad-free, even in the free version, and it always will be. - help us improve heyweather! we value your feedback! reach out to us via "contact us" in the "settings" tab or email [email protected]. your input helps us improve the app! -- download heyweather now: join thousands of satisfied users who trust heyweather for accurate and personalized weather forecasts. download now to take control of your local weather and stay informed wherever you go! * subscription required for some features such as live activity, premium forecast sources, climate data, precast and ... . ** requires watchos 10 or later terms of service: https://heyweatherapp.com/terms privacy policy: https://heyweatherapp.com/privacy
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.
