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.
Win the start before the race begins.
$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.
First kit free with a verified email
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 Race Regatta Timer: 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: Expensive subscription
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Missing features
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Poor performance
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.
Win the start before the race begins. Regatta Timer puts the countdown where it belongs: on your wrist. Set your start sequence, keep your eyes on the water, and feel clear haptic cues as the final seconds tick away. When the countdown reaches zero, Regatta Timer automatically switches to elapsed-time mode. Tap LAP to capture each split, then review your lap times directly on Apple Watch or in the companion iPhone app. BUILT FOR THE START LINE - Choose a countdown from 1 to 60 minutes - Set the time quickly with the Digital Crown - Feel haptic cues through the crucial final seconds - Continue automatically into elapsed timing at zero - Record individual lap times with one tap - See lap results directly below the LAP control - Stop safely and prepare the next countdown - Receive an optional start alert on your paired iPhone SIMPLE BY DESIGN Large controls, a clear timing display, and safeguards against accidental touches keep Regatta Timer focused on what matters when the start line gets busy. No account. No ads. Your timing data stays on your devices. Ideal for sailing regattas, club races, training starts, and practice sessions.
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.