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
PetVax: Pet Health Passport
Never get turned away at the kennel or groomer again.
$0.99 · In-app purchases
PRICE
$0.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
N/A
No ratings yet
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/
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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 PetVax: Pet Health Passport: 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 reminders and notifications feature.
Assumption to check: Users often forget vaccination dates
Validate with people who use this workflow before building.
Hypothesis 2
Create a unified pet management dashboard.
Assumption to check: Difficulty in managing multiple pets
Validate with people who use this workflow before building.
Hypothesis 3
Focus on a clean design with easy navigation.
Assumption to check: Lack of user-friendly interface
Validate with people who use this workflow before building.
Hypothesis 4
Allow users to export pet health data in various formats.
Assumption to check: Limited data export options
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
Never get turned away at the kennel or groomer again. You pack the dog food, the bed, and the toys. But did you remember the paper vaccination card? PetVax is your digital safety net, ensuring you always have valid proof of your pet's immunization history right in your pocket. Designed for responsible pet owners in the US, PetVax replaces the crumbling paper card with a clean, professional "Health Passport" that vets and boarding facilities love. WHY PETVAX? The "Traffic Light" System Instantly know your status. Green means Valid. Red means Expired. Never guess when the Rabies or Bordetella shot is due again. Digital Document Storage Snap a photo of the official vet certificate or sticker. Store it digitally next to the record. When the front desk asks for "proof," just tap and show. Weight Tracker Monitor your pet's health trends with a beautiful, easy-to-read weight history chart. Perfect for vet visits. 100% Offline & Private Your data belongs to you. PetVax works completely offline. No cloud accounts, no sign-ups, and no data tracking. Your pet's medical history stays on your iPhone, not on a server. PREMIUM EXPERIENCE • One-time purchase ($3.99). • Absolutely NO subscriptions. • NO ads. • Clean, Professional Medical Design. Perfect for dogs, cats, and all furry family members. Download PetVax today and travel with peace of mind.
Written user reviews are not shown here. Check current App Store reviews >
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
@react-navigation/native
@react-native-async-storage/async-storage
react-hook-form
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.
