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
3D Anatomy
A true and totally 3D app for learning human anatomy with muscle action movies, 3D position quiz and audio pronunciation, built on an advanced interactive 3D touch interface
$2.99 · In-app purchases
PRICE
$2.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.8
562 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 included18 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 3D Anatomy: 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
Enhance interactions by adding more features like quizzes or 3D animations.
Assumption to check: Limited interactivity with 3D models
Validate with people who use this workflow before building.
Hypothesis 2
Offer a more flexible subscription plan or one-time purchase option.
Assumption to check: Subscription pricing model may deter users
Validate with people who use this workflow before building.
Hypothesis 3
Implement guided tours or tutorials to enhance user understanding.
Assumption to check: Difficulty in navigating complex anatomy
Validate with people who use this workflow before building.
Hypothesis 4
Add social sharing or discussion boards for users to connect.
Assumption to check: Lack of community features
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
A true and totally 3D app for learning human anatomy with muscle action movies, 3D position quiz and audio pronunciation, built on an advanced interactive 3D touch interface. ***Want to try the app for free? Click on related apps and download the free version. Features: - You can rotate models to any angles and zoom in and out - Virtual dissection: Peel layers of muscles and reveal the anatomical structures below them. - more than 100 muscle action movies - physiology animation videos - Major bone markings - Muscle descriptions: Origin, Insertion, Nerve, Action - 3D location quizzes to test your knowledge - Audio pronunciation for all anatomy terms. - Latin names - Search the name of anatomical structure and reveal the 3D location - Switch on/off different anatomy systems - Both male and female reproductive systems are available - Load and Save Views (bookmaker function) - Information from Wikipedia and Gray's anatomy textbook - Great for learning anatomy and physiology - Support French, Spanish and German languages! Contents: - Skeleton (all bones in our body) - Ligaments - Bone markings - Muscles (145 muscles, highly detailed muscle models) - Circulation (arteries, vein and heart) - Nervous system - Respiratory system - Reproductive system ( both male and female ) - Urinary system - 3D Ear - 3D Eye Contact Us: Email us at [email protected]. Let us know any feedback you have or share ideas for making the app better.
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 Navigation
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Expo Notifications
Async Storage
Zustand
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.
