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.
Have you ever ended up at the hockey rink with your goalie watching them play and at the end of the game you look at the scoreboard and the shots on goal just doesn't seem correct?
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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.
First kit free with a verified email
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 Goalie Mom: 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 customization options for stats tracking
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Difficulty in sharing updates with team members
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: User interface can feel cluttered
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: In-app purchases can be confusing
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.
Have you ever ended up at the hockey rink with your goalie watching them play and at the end of the game you look at the scoreboard and the shots on goal just doesn't seem correct? Worse yet, you have no idea how your goalie is doing from one game to another or one week to the next. Do you have the data so that you can help those other parents understand what your goalie actually did during the game? How do you respond to that other parent that asks, "Oh, my what was wrong with Johnnie today, is he OK?" Rather than using a paper score sheet or scratch paper, we figured we’d create an app for that. Goalie Mom will let you keep track of your shots on goal and the final score. If your kid is the goalie, then you might like the Save Percentage that is calculated for each team. If you are curious about the balance of the game or the pace of play, the ratio of shots on goal from one team to the other is tracked. - Tracking the shots and goals in each period. - Calculates the save percentage for each period and the overall game - Track goals for all three periods and over time - Calculates the ratio of shots between each team - Track Attempted Shots to determine the pace and flow of play - Save notes for who was the goalie, which team and season and what went on during the game - Export game details for analysis in our spreadsheet template
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.