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
Grill Tonight
Should you fire up the grill tonight? Stop guessing.
$2.99 · In-app purchases
PRICE
$2.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 5.0
3 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 included16 files
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
Preview a sample Build Kit No email needed
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 Grill Tonight: 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
Incorporate social sharing options for grilling tips and weather updates.
Assumption to check: Limited user engagement due to lack of community features
Validate with people who use this workflow before building.
Hypothesis 2
Use multiple weather APIs to improve accuracy.
Assumption to check: Inaccurate weather data in some regions
Validate with people who use this workflow before building.
Hypothesis 3
Enhance notifications with customizable alerts for grilling conditions.
Assumption to check: Basic notifications for severe weather alerts
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
Should you fire up the grill tonight? Stop guessing. GrillTonight checks your local weather and runs it through a scoring engine that accounts for temperature, wind, and rain. You get a clear YES, MAYBE, or NO — plus a score out of 100, pro tips, a recommended grilling style, and brutally honest commentary about your chances. Search any city or tap to use your current location. Results are instant. WHAT YOU GET: - A 0–100 Grill Score based on real-time weather - A clear YES / MAYBE / NO verdict - Witty, opinionated commentary on your grilling odds - Pro tips tailored to current conditions - A recommended grilling style for the weather - Safety warnings when conditions are dangerous - A weekly planner that ranks the best days to grill - Detailed breakdowns for every session — scores, stats, and tips FEATURES: - NEW: Weekly grilling planner — see every day ranked by conditions - Pick your time window: Evening, Lunch, Afternoon, or Any Time - Search any city worldwide or use your current location - Dark mode and light mode - Metric and imperial units - No account required. No ads. No subscriptions. Built for backyard grillers, patio smokers, and anyone who's ever stared at the sky wondering if tonight's the night. All weather data from Open-Meteo. Your location is used only to fetch weather — never stored or shared.
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.
SUGGESTED BUILD STACK
React Native
Expo
Zustand
axios
react-native-maps
expo-location
BUILD KIT DIFFICULTY
Starter
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.
