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.
Health Webhook sends your Health data to any URL you configure
$14.99 · 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 Health Webhook: 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: Lack of user engagement features such as social sharing or challenges
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Limited integration with wearables and health devices
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: No detailed analytics or insights on health metrics
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: High subscription price without trial options
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.
Health Webhook sends your Health data to any URL you configure. Automatically, in real time. Perfect for personal automation with tools like n8n, Make, Zapier, Home Assistant, or any custom backend. If it accepts a POST request, Health Webhook can feed it your health data. WHAT IT SYNCS • Steps & distance • Sleep (including Core, Deep, REM stages) • Heart rate & HRV • Active calories & BMR • Blood pressure & blood glucose • Oxygen saturation (SpO₂) • Weight, BMI, body fat • Workouts & exercise sessions • Respiratory rate, resting heart rate • Nutrition (calories, protein, carbs, fat) • Floors climbed, water intake, and more HOW IT WORKS Add one or more webhook URLs. The app fires a JSON POST to each URL whenever new health data arrives. No polling needed. You can also trigger a manual sync or build Shortcuts automations for scheduled syncing. MULTIPLE WEBHOOKS Add as many endpoints as you need. Each sync posts to all configured webhooks simultaneously with exponential backoff retry on failure. SHORTCUTS SUPPORT The "Sync Health Data" action is available in the Shortcuts app, so you can schedule syncs via time-based automations without leaving the app open. SYNC LOG Every sync is logged with a timestamp, status, and data summary so you can see exactly what was sent and when. PRIVACY All data stays on your device and goes directly to the webhook URLs you configure. Nothing is sent to any third-party server. The developer never sees your health data. Requires HealthKit permission. Background delivery works best when the app has been opened at least once after device restart.
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.