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.
The simplest way to track contractions during labor.
$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.
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 Contraction Timing: map the core Medical 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 tracking metrics.
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: Lack of reminders for timing contractions.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: No data export functionality.
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.
The simplest way to track contractions during labor. When every contraction counts, you need an app that's easy to use and impossible to mess up. Just tap to start, tap to stop — we handle the rest. AUTOMATIC 5-1-1 RULE TRACKING The 5-1-1 rule helps you know when it's time to head to the hospital: contractions every 5 minutes, lasting 1 minute, for 1 hour. We track all three criteria in real-time and tell you when you've hit the mark. BEAUTIFUL, INTUITIVE CHARTS Watch your labor progress with easy-to-read charts showing contraction duration and frequency over time. See patterns at a glance without crunching numbers. YOUR DATA, ALWAYS SAVED Never lose your contraction history. Your data is automatically saved and persists even if you close the app or restart your phone. EDIT ANYTIME Made a mistake? Long-press any contraction to adjust the start and end times. Life is unpredictable — your app should be flexible. DESIGNED FOR THE MOMENT Large buttons, clear text, and a calming interface designed for when you need it most. No subscriptions, no ads, no distractions. Whether it's your first baby or your fourth, Contraction Timer gives you clarity and confidence when timing matters most.
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.