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.
Holter monitors are itchy, uncomfortable, clunky devices, but they're the best we have right now so we're stuck with them
$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 Holter Buddy Plus: map the core Health & Fitness 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 features and data analysis compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: User interface is not very engaging
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Subscription management can be confusing
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Lack of social features for community support
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.
Holter monitors are itchy, uncomfortable, clunky devices, but they're the best we have right now so we're stuck with them. Maybe Apple will find a way to shove one in a watch one day. While wearing a holter monitor may have to be uncomfortable, noting your cardiac events doesn't have to be! Holter Buddy Plus will let you keep track of your activities and symptoms while you're wearing your monitor at the push of a button or through Siri! With Holter Buddy Plus, you can set up a "Hey Siri" shortcut (press the Add to Siri button on the Profile Tab), making recording your cardiac events even easier!*** Give your holter tracker a name, note the ID of the device (if you know it), the time you started wearing the holter, the time it is due back, and hit "Save". Then, whenever you have a symptom, or just want to record an even of interest, press the big red button! You can set the time, type in what you were doing, and what symptoms you experienced. Don't forget to fill in you profile! Share as much or as little as you want and it will be printed with the lab report! To print the report, navigate to the Holter Tab, tap the row of your tracker, then press the "print" button on the history page! A nice little report containing all your cardiac events, including your name, phone number, health number, sex, and medications will be generated for printing, you can even save the report to PDF! This app is entirely stored on your device so no data is collected. ***You'll need to set the shortcuts activity and symptoms to "ask each time", the first time you set it up.
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.