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.
Keep track of your players' time on the field with Coach's Clock.
$0.99 · 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 Coach's Clock: 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 timers
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: No social sharing features
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Inadequate user guidance
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Lack of notifications for completed timers
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.
Keep track of your players' time on the field with Coach's Clock. Designed with input from a youth soccer coach who manages multiple teams each season, Coach's Clock is a very simple application that runs on your iPhone, iPad or iPod touch. It keeps track of all of the players on your team, where they are supposed to be on the field, and how long they've been playing since they were last substituted into the game. Just enter in your team name and your player roster. Drag your players on and off the field and tap the clock to start it running. Players on the field accrue elapsed time. Players off the field do not. It's that simple. What Coach's Clock does: * It tracks how much time has elapsed in the current play period. * It tracks the position of every player on your team. * It keeps track of how long each player has been on the field. * It helps you plan player substitutions. * It has field backgrounds for basketball, field hockey, football, hockey and soccer but it could also be used for any similar sport. * It supports an unlimited number of teams. * It has detailed usage instructions right inside the app. * It's a "universal app" so one purchase is good for all your iDevices! What it doesn't do: * Coach's Clock doesn't force you to keep the app running throughout your game. You are free to close it, open other apps, take phone calls, or whatever you like. You only need to run it when you want to refer to it or when you need to make a change. The clocks keep time even when the app isn't running. * Coach's Clock is not a replacement for your whiteboard or playbook. (There are plenty of other fine apps which can do that for you.) Coach's Clock may seem like a pretty simple app, and it is! But that's the beauty of it. It doesn't try to do everything for you; instead it tries to do a few essential things very well. It doesn't try to change the way you coach your team; it just makes your job a little easier.
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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.