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
Precip - Rain Forecast & Alert
See exactly how much it rained at your locations and keep track of the weather headed your way
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.8
6,244 ratings · Top 5%
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 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 Precip - Rain Forecast & Alert: 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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App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Screenshots
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App Store description
See exactly how much it rained at your locations and keep track of the weather headed your way. Precip is your virtual rain gauge: see rainfall totals at your locations with high-resolution NOAA radar, not forecast guesses. Download for free to see why Precip is the highest-rated rainfall totals app. "I've tried a few and this one is by far the best." "I compare rainfall with someone who measures via gauge religiously and this app is accurate." "Best weather app, hands-down!" Whether you're managing a work site, tending a garden, planning your weekend or just curious about your other property, Precip makes it easy to see what the conditions are and keeps you informed about weather headed your way. RAINFALL TOTALS, ANYWHERE • Rain totals at your exact spot or anywhere on the map • Past 12h, 24h, 48h, week, month, year, or any custom range • Years of history: compare this year to normals and past years • Tap any day to see hour-by-hour rainfall LIVE RAIN MAP & RADAR • Animated radar with rain accumulation overlays • Tap anywhere to read totals instantly • Wind, soil moisture, and premium data layers RAIN ALERTS THAT MATTER • Custom rainfall threshold notifications for each location • National Weather Service severe weather alerts • Daily email reports for your team BUILT FOR WORK OUTDOORS Farmers, builders, landscapers, gardeners, and weather nerds use Precip to decide when to plant, pour, mow, and water across every property they manage. FAIR, SIMPLE PRICING Precip is genuinely useful for free: recent totals, live radar, and current month history—works without signing in. Upgrade when you need more saved locations, full history, extended forecasts, and premium layers. ENSEMBLE FORECASTS We blend multiple weather models and show you when they disagree, so you know how much to trust the rain forecast. Plus: snowfall totals, snow depth, and frost layers for the winter season. Questions? Chat with us right inside the app. EULA: https://precip.ai/terms
Written user reviews are not shown here. Check current App Store reviews >
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 more reliable data sources and user feedback loops.
Assumption to check: Inaccurate weather predictions at times
Validate with people who use this workflow before building.
Hypothesis 2
Allow users to set personalized alerts for specific weather conditions.
Assumption to check: Lacks customization options for notifications
Validate with people who use this workflow before building.
Hypothesis 3
Optimize map rendering and data fetching strategies.
Assumption to check: Slow loading times for radar features
Validate with people who use this workflow before building.
Hypothesis 4
Expand data sources to include more regions and localized forecasts.
Assumption to check: Limited geographical coverage
Validate with people who use this workflow before building.
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.
