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
Mommy's Log: Baby Tracker
Mommy's Log is the simplest way to track your baby's feedings and diapers — made for tired parents who need to log in seconds, not dig through menus.
$2.99 · In-app purchases
PRICE
$2.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 5.0
2 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 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 Mommy's Log: Baby Tracker: map the core Health & Fitness 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
Offer customizable log types and notes.
Assumption to check: Limited customization options for logs
Validate with people who use this workflow before building.
Hypothesis 2
Implement a search and filter feature for easier access.
Assumption to check: Difficult navigation between logs
Validate with people who use this workflow before building.
Hypothesis 3
Integrate notifications for reminders.
Assumption to check: Lack of reminders for feeding/sleeping
Validate with people who use this workflow before building.
Hypothesis 4
Enable sharing logs with family or friends.
Assumption to check: No social sharing 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
Mommy's Log is the simplest way to track your baby's feedings and diapers — made for tired parents who need to log in seconds, not dig through menus. LOG IN SECONDS • Breast, bottle & formula feedings, with smart side suggestions • Wet, dirty & mixed diapers — one tap each • Built-in nursing timer KNOW WHAT'S NEXT • See time since the last feeding at a glance • AI learns your baby's rhythm and predicts the next feeding - free for everyone • Gentle reminders when the next feeding is due • Home screen widget , check the last feeding without opening the app • Full history you can edit anytime SHARE THE CARE (Pro) • Sync live with your partner or nanny through iCloud • Everyone sees every feeding and diaper in real time • Weekly feeding & diaper insight charts PRIVATE BY DESIGN • Your data stays in your iCloud — never on our servers • No account, no sign-up, no ads, no tracking Mommy's Log is free to use. Mommy's Log Pro adds Partner & Nanny Sync and weekly Insights. Mommy's Log Pro is an auto-renewing subscription: • $2.99/month with a 7-day free trial • Billed to your Apple ID at purchase confirmation • Renews automatically unless canceled at least 24 hours before the period ends • Manage or cancel anytime in your App Store account settings Privacy Policy: https://lcantillo84.github.io/mom-baby-logger/privacy-policy.html Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
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.
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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.
