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
ScoreCat
ScoreCat: Your Gymnastics Companion
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.0
62 ratings · Top 30%
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/
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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 ScoreCat: 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
Expand to include more sports and customization options.
Assumption to check: Not all sports are supported.
Validate with people who use this workflow before building.
Hypothesis 2
Implement real-time updates using WebSockets.
Assumption to check: Data can lag during score updates.
Validate with people who use this workflow before building.
Hypothesis 3
Add social sharing and team chat functionalities.
Assumption to check: Limited user engagement features.
Validate with people who use this workflow before building.
Hypothesis 4
Improve UI for subscription clarity and value proposition.
Assumption to check: Subscription options are unclear.
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
ScoreCat: Your Gymnastics Companion Transform your gymnastics journey with ScoreCat! Whether you're an athlete, coach, or dedicated fan, ScoreCat elevates your experience with: - Athlete bios, personal stats, and VIDEOS!!!!! - Push notifications for followed athletes - Live Scores: Stay on top of the action with real-time results from meets at all levels. - Team Scores: Don't wait for the medals to know if your team is in 1st place - Athlete Tracking: Follow your favorite gymnasts and get personalized updates on their performances. ScoreCat is your ultimate tool for tracking progress, analyzing performance live, and taking the team to the Gold. Download today and unleash your full potential! At ScoreCat we take privacy and your license to use our app very seriously. How serious? Enough to dedicate some website real estate: EULA: https://scorecatonline.com/?page_id=750 Privacy Policy: https://scorecatonline.com/?page_id=727
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
Supabase
Zustand
React Navigation
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.
