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
VitalScan: Wellness Mirror
What if checking your health was as simple as looking at your phone?
Free
PRICE
Free
No in-app purchases
BUSINESS MODEL
Free
No overall Grossing estimate available
RATING
★ 4.5
2,459 ratings · Top 15%
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.
Build your own version
Build Kit
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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.
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/
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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 VitalScan: Wellness Mirror: map the core Utilities 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 adaptive lighting suggestions for better scans.
Assumption to check: Inconsistent scanning results based on lighting conditions.
Validate with people who use this workflow before building.
Hypothesis 2
Add trend analysis over time with visual graphs.
Assumption to check: Limited historical data analysis.
Validate with people who use this workflow before building.
Hypothesis 3
Allow users to create accounts for saving their health data.
Assumption to check: No user accounts for data persistence.
Validate with people who use this workflow before building.
Hypothesis 4
Enable users to set personalized reminders for scanning.
Assumption to check: Lack of customization for notifications.
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
What if checking your health was as simple as looking at your phone? VitalScan is powered by patented optical imaging technology, clinically studied and trusted worldwide. Using only your phone's camera, it reads subtle blood-flow signals in your face and, with advanced AI, turns a quick scan into clear, easy-to-understand health insights. No wearables. No finger pricks. No manual input. Just open the app, scan your face, and see your results in seconds. AI Face Scan — Your Health, Instantly A single scan estimates the indicators that matter most: • Heart rate, HRV & cardiac workload • Breathing rate & stress level • BMI & skin age • …and more All from your camera—anytime, anywhere. Know What to Focus on Today You shouldn't have to read every number. VitalScan highlights only the signals that deserve your attention today, with a calm daily summary instead of an overwhelming wall of data. See the Bigger Picture • 7-day and 30-day trends reveal gradual changes a single reading would miss • Bite-sized Insights explain each signal, drawn from authoritative sources such as the WHO Private by Design Your scans are processed for your eyes only. No social feeds, no ads selling your data, no distractions. Note: VitalScan provides wellness estimates for informational purposes only. It is not a medical device and does not diagnose, treat, or prevent any condition, or replace professional medical advice. Always consult a qualified healthcare professional for medical decisions. Learn More: Privacy Policy: https://www.cybernexnetworks.com/privacy-policy Terms of Use: https://www.cybernexnetworks.com/terms-of-use Any Questions? You can send an email to [email protected]
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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
Zustand
react-native-chart-kit
expo-camera
expo-sharing
BUILD KIT DIFFICULTY
Advanced
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.
