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
My PlayHome Hospital
* #1 Best Selling Kids App in over 50 countries!
$2.99 · In-app purchases
PRICE
$2.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.5
953 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.
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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 should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
What's included15 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 My PlayHome Hospital: map the core Entertainment 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
Add more customizable features for characters.
Assumption to check: Limited character customization options
Validate with people who use this workflow before building.
Hypothesis 2
Introduce new interactive scenarios and challenges.
Assumption to check: Repetitive gameplay
Validate with people who use this workflow before building.
Hypothesis 3
Implement sharing options for experiences.
Assumption to check: No social features
Validate with people who use this workflow before building.
Hypothesis 4
Simplify the purchase process and clarify benefits.
Assumption to check: In-app purchases can be confusing
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
* #1 Best Selling Kids App in over 50 countries! * Editor's Choice Award - Children's Technology Review * 5 stars - Common Sense media * Best Pick Award - TechWithKids.com * 5 stars - PappasAppar.se ----------------------------------------------- New from the creators of the award winning "My PlayHome" series! Welcome to the My PlayHome Hospital! Want to be a doctor? Check your patient's heartbeat with the stethoscope! Give prescriptions and medicines in the doctor's room. Change the blood bags in the Emergency Room! Want to play patient? Get your arm bandaged! Get an X-Ray! Recover in a comfortable hospital room and get served a hot meal! "My PlayHome Hospital" has no time limits, scores or power ups. Just free play that powers your child's imagination. "My PlayHome Hospital" is also fully integrated with the original "My PlayHome", "My PlayHome Stores" & "My PlayHome School" apps, so characters and objects can seamlessly pass between apps, creating an ever bigger world to explore and play. ----------------------------------------------- ▶ NO IN-APP PURCHASES! ▶ NO 3RD PARTY ADVERTISEMENTS! ▶ NO SOCIAL NETWORKS, PUSH NOTIFICATIONS OR REGISTRATION! ----------------------------------------------- ...Just hours of imagination driven play! ----------------------------------------------- ----------------------------------------------- http://www.myplayhomeapp.com/ http://www.facebook.com/playhome http://twitter.com/myplayhomeapp
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
Zustand
react-native-gesture-handler
react-native-reanimated
expo-router
BUILD KIT DIFFICULTY
Intermediate
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.
