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.
App Overview
VitalCount
An intuitive app designed for healthcare professionals, pediatricians, veterinarians, students, and anyone who needs to assess vital signs quickly, accurately, and in an organized way—with just a tap.
$0.99 · In-app purchases
PRICE
$0.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 5.0
3 ratings · Top 5%
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.
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Build Kit
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A product spec, screen plans, and build steps for your coding agent.
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What's included16 files
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
Preview a sample Build Kit No email needed
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Screen plan
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.
Differentiate and validate
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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Free quick prompt For a smaller starting point
Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for VitalCount: 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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Opportunities
AI-GENERATED OPPORTUNITY HYPOTHESES
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
Implement strong encryption and user consent mechanisms.
Assumption to check: User data privacy concerns regarding health data storage
Validate with people who use this workflow before building.
Hypothesis 2
Add push notifications for timely reminders.
Assumption to check: Lack of reminders for taking vital readings
Validate with people who use this workflow before building.
Hypothesis 3
Integrate charts and graphs for better data visualization.
Assumption to check: Difficulty in visualizing trends over time
Validate with people who use this workflow before building.
Hypothesis 4
Allow users to create and customize their own vital types.
Assumption to check: Limited customization of vital types to track
Validate with people who use this workflow before building.
App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
App Store description
An intuitive app designed for healthcare professionals, pediatricians, veterinarians, students, and anyone who needs to assess vital signs quickly, accurately, and in an organized way—with just a tap. *How does it work? 1. Select a time interval (in seconds). 2. Tap the screen to the rhythm of heartbeats or breathing. 3. The app automatically extrapolates the result to 60 seconds if a shorter interval is used. 4. Easily save and export data for later analysis. *What’s included? » PALS tables with normal vital sign ranges in children » Standard values for common pets and animals (dogs, cats, birds, and more) » Multiple measurement records per patient or animal » Quick data export for reports and clinical tracking » Graphical visualization of saved data » PDF export for sharing or printing *Ideal for: » Medical and veterinary professionals » Pediatricians » Medical and veterinary students » Pet owners » Prehospital care or field monitoring *Key features: » Fast calculation in 5-second intervals, automatically extrapolated to 1 minute » Secure and organized patient record storage » Practical data export options, including PDF » Graphs to visualize trends over time » Record browsing by patient or animal name Discover a compact, reliable, and easy-to-use tool for evaluating vital signs in both humans and animals. Professional-level accuracy at your fingertips. Available languages: English · Spanish · German · French · Italian · Portuguese Disclaimer: This app is intended as a support tool and does not replace clinical judgment or professional medical advice. Results must be interpreted by healthcare professionals. Developers are not responsible for decisions made based on data obtained through the app. Always consult a professional for diagnosis or treatment decisions.
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Screenshots
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Build scope
Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Define the first version
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Set boundaries
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Check the hard parts
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
SUGGESTED BUILD STACK
React Native
Expo
Redux
Axios
React Navigation
BUILD KIT DIFFICULTY
Starter
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.
