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.
Take Full Control of Your Apple Health Workout Data
$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 HealthPatch: 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: Users often find it hard to track progress over long periods.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Limited integration with health devices.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: In-app purchases can be confusing.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Lack of community features for motivation.
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.
Take Full Control of Your Apple Health Workout Data HealthPatch lets you create, repair, and inspect workouts in Apple Health with complete precision. Whether you lost a workout, synced incomplete data, or just want to fix a bad recording — HealthPatch puts you in control. CREATE WORKOUTS FROM SCRATCH Build a new workout with full metric control. Import a GPX file from your GPS watch, cycling computer, or any fitness device, set your activity type, and fill in your stats. HealthPatch saves the complete workout — route, metrics, and all — directly to Apple Health. PATCH & REPAIR EXISTING WORKOUTS Load any workout from Apple Health, edit what you need, and save it back. Correct an inaccurate pace, add missing elevation data, swap in a better GPX route, or update your effort score. Patch your records without losing your history. INSPECT & EXPORT YOUR DATA View every detail of any Apple Health workout — metrics, route, source app, and device. Export as a GPX file for use in other platforms, generate a PDF summary, or create a shareable workout card with your route map. BUILT FOR SERIOUS ATHLETES 14+ workout metrics: heart rate, cadence, pace, speed, power, stride length, vertical oscillation, ground contact time, steps, elevation, and more Full GPX import and export Multi-format export: GPX, PDF, and image Supports 30+ activity types Metric and imperial units Advanced workout search — filter by activity, date, duration, distance, or source app Interactive route maps with elevation data Replaces or keeps original workouts — your choice WHO IS HEALTHPATCH FOR? Runners and cyclists who train with GPS watches Athletes whose workout syncs dropped data Fitness enthusiasts managing data across multiple apps and devices Anyone who wants a complete, accurate training history in Apple Health PRIVACY FIRST HealthPatch works entirely on your device. Your health data never leaves your iPhone. --------------------- Requires Apple Health permission. Some metrics are activity-type specific.
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.