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
Life Sim 3D: Family Simulator
Welcome to Life Sim 3D: Family Simulator – your perfect virtual life!
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.7
64,453 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 included17 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 Life Sim 3D: Family Simulator: map the core Games 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
Introduce varied daily challenges and events.
Assumption to check: Monotony in tasks can lead to boredom
Validate with people who use this workflow before building.
Hypothesis 2
Increase avatar customization features.
Assumption to check: Limited character customization options
Validate with people who use this workflow before building.
Hypothesis 3
Offer more free content and rewards.
Assumption to check: In-app purchases may feel necessary to progress
Validate with people who use this workflow before building.
Hypothesis 4
Implement a more user-friendly ad system.
Assumption to check: Ad frequency can be disruptive
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
Welcome to Life Sim 3D: Family Simulator – your perfect virtual life! Step into a world where your imagination knows no limits! Create a life you’ve always dreamed of — choose your character (male or female), personalize their look with hairstyles, hair colors, outfits, and more. Build your dream home, raise a family, adopt pets like cats and dogs, and enjoy a rich everyday life full of surprises. Shape Your Story, Your Way Design every detail of your lifestyle: furnish a cozy house, decorate children’s rooms, and prepare for the arrival of a baby in a realistic family and parenting simulator. Experience the joys of taking care of little ones, building relationships, and creating a warm family atmosphere. Live in Real-Time Guide your Sim through every stage of life, from playful toddlers to loving parents and beyond. Explore paths filled with friendships, romance, weddings, family events, and even the challenge of raising kids. Adopt a pet to complete the household and watch how your virtual life unfolds day by day. Customize Everything – Design dream homes with incredible details: stylish furniture, decor, nurseries, and more. – Create unique characters with customizable appearance, wardrobes, and personality traits. – Choose careers, hobbies, and life goals for your Sim. – Personalize every detail — from your hairstyle to your baby’s nursery. Highlights of Life Sim 3D: Family Simulator – Create Their Story: Shape your Sim’s life through important milestones — childhood, adulthood, and family life. – Build Your Family: Raise children, take care of babies, and adopt pets to create your perfect household. – Live Fully: Experience romance, weddings, parenting, and daily adventures. – Endless Creativity: Customize characters, homes, and lifestyles to your heart’s content. Why choose Life Sim 3D: Family Simulator? It’s more than just a game — it’s a lifestyle. With realistic graphics and immersive gameplay, every decision shapes your unique story. Whether you dream of decorating a nursery, raising a child, adopting a puppy, or enjoying quiet family evenings, Life Sim 3D: Family Simulator lets you live your way. Start your adventure today! Download Life Sim 3D: Family Simulator and bring your dreams to life. Dive into a world full of creativity, family fun, and endless possibilities!
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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
Supabase
Zustand
React Navigation
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.
