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.
Hi there, we're Weatherzone
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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 Weatherzone: Weather Forecasts: 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 customization for notifications
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Cluttered user interface with too many options
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Inaccurate location detection
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Lack of offline capabilities
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.
Hi there, we're Weatherzone. The local weather app helping you plan your daily life, travels, and outdoor adventures. Here's a quick Spring 2026 Outlook from our resident Meteorologist, and check out our app features below to make the most of this season: "Above average temperatures are likely in the southern half of the US this spring, while northern parts may still see some winter-like weather, especially early in the season. Despite these lingering cold bursts, spring warmth and rainfall will accelerate snowmelt across the north-central and northeast, raising the risk of river flooding. The West and Southwest look drier than average this spring, and drought conditions in the South could persist well into the season. Elevated wildfire risk also remains a concern across California and parts of the Southeast. Our meteorologists are also keeping a close eye on the Pacific Ocean, with El Niño conditions potentially shaping weather patterns across the U.S. as we get closer to summer. As always, be sure to check your local weather forecasts and warnings.” FREE WEATHER APP FEATURES ◆ Local Weather Observations: See the current weather conditions for your location, including temperature, feels like temperature, rain, wind, humidity, dew point, and UV index. ◆ Radar Map: Visually track where rain and snow are moving in your area with the real-time radar map. You can customise the free layers including wind, temperature, and more. ◆ Hourly Graphs: Before you head out the door, swipe through the hourly graphs for temperature, chance of rain, rainfall amounts, and wind. Keep an eye out for the snow icon – this means precipitation is likely to fall as snow. ◆ Daily Forecast: Plan your day to day with a simple breakdown of the weather during next 10 days, including temperature, chance of rain, rain amount, wind, UV index, plus sunrise and sunset times. ◆ Synoptic Outlooks: See the broader weather patterns shaping your local weather conditions for the next 7 days, including cold fronts, low pressure systems, and rain bands. ◆ 14-Day Calendars: Plan ahead using the 14-day Temperature and Rainfall forecasts. Great for road trips and outdoor adventures. ◆ Warnings: Stay safe and informed with official severe weather alerts and warnings for your area. OTHER FREE APP FEATURES ◆ Wind Streamlines: Follow the wind direction across the U.S. with animated streamlines on the radar. ◆ 14-Day Moon Calendar: Track the moon phases along with moon rise and moon set times. ◆ Widgets: Set handy hourly and/or daily weather widgets on your iPhone and iPad home screen. You can customize the locations too. WEATHERZONE AD-FREE ACCOUNT [ANNUAL SUBSCRIPTION] Enjoy an ad-free experience on the Weatherzone app. Simply sign up for an ad-free account - only $3.99 USD per year. WEATHERZONE PRO ACCOUNT [MONTHLY SUBSCRIPTION] For $3.99 USD per month, enjoy the ad-free experience, plus the following exclusive app features: ◆ See individual lightning strikes on the Radar Map; and ◆ Get hourly breakdowns for wind gusts and cloud coverage in Hourly Graphs. Please note: Weatherzone is expanding globally and while our app provides local forecasts for all places around the world, some specific features may not be available in all regions yet - but sit tight! Privacy Policy: https://www.weatherzone.com/privacy-policy Terms of Use: https://www.weatherzone.com/terms
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.