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.
Penalty Shoot-out simulator is an instructional app that demonstrates using the Rule-of-Six to determine if a team has an insurmountable lead during the first five rounds of a soccer Penalty Shoot-out
$1.99 · 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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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 Penalty Shoot-out Simulator: 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: Limited gameplay options compared to other sports apps
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Lack of user engagement features
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: No training or practice mode
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: No community 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.
Penalty Shoot-out simulator is an instructional app that demonstrates using the Rule-of-Six to determine if a team has an insurmountable lead during the first five rounds of a soccer Penalty Shoot-out. The user can set up a simulated shoot-out, setting the number of eligible players, the names and colors of the teams, then enter results of each team's turns one-by-one. The app keeps track of the goals scored and a Rule-of-6 tally for each team. A team gets a Rule-of-6 tally mark for each of their goals, and each of their opponent misses. If either team's Rule-of-6 tally reaches six before the end of the fifth round, that team has an insurmountable lead and is the winner. The app also provides referees a printable Penalty Shoot-out scorecard that incorporates the Rule-of-6. The app can also be used to follow along during an actual Penalty Shoot-out. • Track penalty shoot-outs in real time • Customizable team colors and names • Select player numbers for each turn • Professional referee Penalty Shoout-out Scorecard • Rule-of-Six demonstration and automatic calculation
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.