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
BabySitMe
This Realistic Baby Simulation App will transform the way you play with your Reborn Baby Doll (or other Baby Dolls) forever!
$3.99 · In-app purchases
PRICE
$3.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 3.9
144 ratings · Top 50%
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 included17 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 BabySitMe: map the core Education 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
Include courses tailored for various ages and skill levels.
Assumption to check: Limited content variety for different age groups
Validate with people who use this workflow before building.
Hypothesis 2
Add quizzes and interactive exercises to enhance learning.
Assumption to check: Lack of interactive features
Validate with people who use this workflow before building.
Hypothesis 3
Implement offline downloads for courses.
Assumption to check: No offline access to courses
Validate with people who use this workflow before building.
Hypothesis 4
Introduce gamification elements like badges and streaks to motivate users.
Assumption to check: Limited engagement 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
This Realistic Baby Simulation App will transform the way you play with your Reborn Baby Doll (or other Baby Dolls) forever! Turn the app on when you are ready to take care of your baby and turn the app off when you are finished caring for your baby. BabySitMe is designed to replicate an infant simulator when combined with your Reborn Baby. This app is perfect for anyone wanting to have a little extra fun while role playing with their Reborn Baby dolls. While Babysitme is running a schedule, it tells the user to Feed, Burp, Rock and all other necessary actions when really taking care of an infant. These actions are designed to be acted out in role play with the user’s Reborn Baby Doll. When using the app you will be able to choose between Easy, Medium, Hard or Play mode simulations. The Easy, Medium & Hard simulations run on a 24-hour schedule. The Play mode is designed for people that are just wanting a fast-paced version of the app. It is a shortened version of the simulation modes where the care events are very close together and don’t last very long. Routine is categorized in age groups designed to allow you to follow along with your babies routine, There are new care events and even tells you when baby is asleep or awake! - Name your baby. - Realistic 24-hour care schedule, Just like a real baby! - Easy for all ages to use (Recommended ages 7+). - Bond with your Reborn baby through your baby needing your care and attention. - Play schedules for younger children with a shorter attention span. - You wont know when your baby will cry for the next care event, making it as realistic as a real baby. - Unpredictable care events meaning it isn’t the same old boring Routine every day. The idea of the app is you place your device next to your Baby Doll and wait for the app to send through a notification sound (cries). You will need to check the device for what the baby would like, then give the baby doll the correct care For example: - Feed baby - Burp baby - Nappy change - Rock baby - cuddle baby (Etc…) When the babies care is finished the App will sound again letting you know the care event is finished. Place the device back next to baby and wait for the device to make another sound for the next care event. When you are finished you simply turn the app off. This app has been designed for fun, as a form of entertainment.
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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
TypeScript
React Navigation
React Native Video
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.
