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.
Tennis Score Keeper is a complete court side companion designed for players, coaches, and referees
$3.99 · In-app purchases
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.
A product spec, screen plans, and build steps for your coding agent.
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Combine features and design from your favorite apps.
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Generating… usually about a minute.
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
A product spec, phased build plan, differentiation notes, and screen references.
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Goal: Send a clear invoice after finishing a job.
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.
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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Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for Tennis Score Keeper.: 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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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
Assumption to check: Users often find score tracking cumbersome during fast-paced games.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Limited customization options for match settings.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Lack of analytical features to review past matches.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Difficulty in restoring purchases or accessing premium features.
Validate with people who use this workflow before building.
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Tennis Score Keeper is a complete court side companion designed for players, coaches, and referees. Record every point with confidence using fast, accurate tennis scoring and large controls built for real match conditions. Track games, sets, tiebreaks, serving order, match duration, and important moments without interrupting play. Choose the experience that fits your role. Player Mode • Start singles or doubles matches quickly • Track points, games, sets, and tiebreaks • Undo points and correct scores safely • Resume unfinished matches • Review match history and player statistics • Use high contrast court mode outdoors Coach Mode • Tag aces, winners, forced errors, unforced errors, and double faults • Record first and second serve information • Add coaching notes during matches • Review measured performance insights • Create and share post match reports Referee Mode • Record stoppages, suspensions, violations, and match outcomes • Manage retirement, walkover, default, and incomplete matches • Maintain a chronological match event log • Create clear referee match reports Additional Features • Standard and no ad scoring • Singles and four player doubles serve rotation • Standard tiebreaks and match tiebreaks • Light and dark themes • Landscape support on iPhone and iPad • Match point, set point, game point, and break point indicators • Searchable match history • Shareable match summaries • Offline use with information stored privately on your device Whether you are playing a friendly match, tracking athlete development, or managing play from the chair, Tennis Score Keeper gives you the tools to stay focused on the match.
Written user reviews are not shown here. Check current App Store reviews >
Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
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.