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
Sun Scout
If your work or play requires sunlight, Sun Scout is built for you
$9.99 · In-app purchases
PRICE
$9.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 2.7
22 ratings · Below Average
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 included14 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 Sun Scout: map the core Photo & Video 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 enhanced geolocation features for better accuracy.
Assumption to check: Limited location accuracy
Validate with people who use this workflow before building.
Hypothesis 2
Focus on user-friendly design and onboarding.
Assumption to check: Poor user reviews regarding usability
Validate with people who use this workflow before building.
Hypothesis 3
Provide clear explanations of premium features and benefits.
Assumption to check: Premium features behind paywall not clearly defined
Validate with people who use this workflow before building.
Hypothesis 4
Optimize app performance and loading times.
Assumption to check: Inconsistent performance
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
If your work or play requires sunlight, Sun Scout is built for you. Turn your iPhone in to a magic lens. Point it to the sky and understand where the sun will be and when it will be there. * romano01, US App Store – "This app has come in handy more then once this week alone. While working on a feature film called "fairhaven" the gaffer and I (key Grip) needed to find out where and when the sun would be for a scene… well after i pulled out my Sun Scout App. everyone started downloading it!!! It is well worth it." * WPSHM, US App Store – "This should win a gajillion awards for usability and simplicity. I love it!!!!" Please Note – Sun Scout uses your device's compass. Like all compasses, Sun Scout is adversely influenced by metal in buildings or vehicles. Sun Scout is only as good as the iPhone's compass and is prone to a variable margin of accuracy even under fair conditions. Please do not base high-value production decisions solely on Sun Scout. Confirming them using sun charts and a technical mission during the time of day of a future shoot. We'd be delighted to hear what you're getting up to with Sun Scout. Give us a shout by email: [email protected]
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
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Expo
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expo-location
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.
