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
Rugby StatKeeper
Train Smarter
$3.99 · In-app purchases
PRICE
$3.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
N/A
No ratings yet
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/
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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 Rugby StatKeeper: 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 a dashboard view for better overview of all matches and players.
Assumption to check: Difficulty in tracking multiple players and matches simultaneously
Validate with people who use this workflow before building.
Hypothesis 2
Provide customizable stats for each match and player.
Assumption to check: Limited stat tracking options
Validate with people who use this workflow before building.
Hypothesis 3
Add functionality for users to share stats and achievements on social media.
Assumption to check: No social sharing features
Validate with people who use this workflow before building.
Hypothesis 4
Include notifications and reminders for upcoming matches.
Assumption to check: Lack of user engagement features
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
Train Smarter What doesn’t get tracked can’t be improved. Fuel your improvement by monitoring all your rugby actions such as passes made, turnovers, assists, blocks and field goals. All you have to do is start an activity and create a set of tasks and objectives. Perfect For Athletes Or Coaches and Parents Of Aspiring Athletes If you’re an athlete who wants to track their progress and see how much improvement you’re making on the court, this app is for you. Rugby Statkeeper is also perfect for parents or coaches of athletes. Easy To Read In Depth Stats & Data Rugby Statkeeper is more than just an app. It’s a comprehensive tool that helps you keep track of every detail of the game of rugby. The app syncs with statkeeper.co.uk, where you can make an account and easily view in depth charts, graphs and see how you stack up to your competition. Think of Rugby StatKeeper as your helping hand to improving your game. Download Rugby StatKeeper today to record your stats like a pro and elevate your game to the next level. Key Features App is free with no in app purchases No more need to use paper to track your stats Use levels to see how you’re making progress Compare results from previous sessions to track your progress Data can be synced to statkeeper.co.uk where you can view a range of in depth charts, graphs and statistics.
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
react-query
@supabase/supabase-js
expo-router
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.
