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
RockHound
All your RockHounding needs in one App separated in 4 easy to use sections
$1.99 · In-app purchases
PRICE
$1.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 1.0
3 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 included17 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 RockHound: map the core Sports 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 robust testing and add requested features.
Assumption to check: Poor user ratings due to bugs and lack of features
Validate with people who use this workflow before building.
Hypothesis 2
Enhance community features for better engagement.
Assumption to check: Limited social interaction
Validate with people who use this workflow before building.
Hypothesis 3
Streamline design for a cleaner user experience.
Assumption to check: Cluttered UI
Validate with people who use this workflow before building.
Hypothesis 4
Simplify purchase options and provide clear explanations.
Assumption to check: In-app purchase confusion
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
All your RockHounding needs in one App separated in 4 easy to use sections. Features a large database of over 160 sites and over 60 rocks and gems with full screen pictures. Add your own sites to personalize the App or include your own finds. No Ads or In-App Purchases! SITES - With over 160 sites, you can choose a site with the Map that also shows your location, or with the List which is separated by State. Each site has a description of the area and what you may find there. You can even add your own sites by plotting the GPS coordinates on the map. RockHound was not intended to be a complete guide to every site, they are mostly in the US. The power is in being able to add your own sites anywhere in the world. ROCKS - Over 60 different rocks, minerals and gems with descriptions and pictures of each. This is not meant to be a complete list of all rocks and gems, but more of a starting point for you to add the ones that you find and personalized descriptions and photos of them. TIPS - General tips about RockHounding, Tools needed, Rock Tumblers. There are also program tips to get the most out of RockHound! FAVORITES - You have the option to select sites as Favorite Sites. The Favorite Sites can have pictures attached to them that you import from your Photo Library or take with the Camera. That way you can keep track of what you find at each site. The power of Rockhound is in this section where you have complete control of the descriptions and pictures of any Site that you mark as a Favorite.
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
axios
react-navigation
@react-native-gesture-handler
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.
