App Overview

Cribcue icon

Cribcue

Robert Corbin · Lifestyle

Cribcue is a fast, private newborn log for iPhone and iPad

$0.99 · In-app purchases

PRICE
$0.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
N/A
No ratings yet

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 included14 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.

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.

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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Quick prompt

> SELECT BUILD PLATFORM:

Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.

// RORK SYSTEM PROMPT
Rork plan preview for Cribcue: map the core Lifestyle 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

Implement better categorization and filtering options for milestones.

Assumption to check: Users find it difficult to track multiple milestones efficiently.

Validate with people who use this workflow before building.

Hypothesis 2

Allow users to customize their experience with themes or personalized recommendations.

Assumption to check: The app lacks personalization features.

Validate with people who use this workflow before building.

Hypothesis 3

Enable users to export milestone data as PDFs or CSVs.

Assumption to check: Limited data export options.

Validate with people who use this workflow before building.

Hypothesis 4

Introduce social sharing options or milestone achievements.

Assumption to check: No community features for sharing milestones.

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

Cribcue is a fast, private newborn log for iPhone and iPad. Tap one button to record a diaper, a feed, or sleep. Cribcue does the rest - a 24-hour chart, a chronological timeline, and rolling 7-day pattern detection answer the only questions you actually ask at 3 AM. WHAT CRIBCUE DOES - Multi-baby cards with photo, name, date of birth, and live counts for the last 24 hours - One-tap log for diaper (wet, dirty, both), feed (breast left, breast right, bottle with volume), and sleep (start / wake) - Today timeline grouped by day with relative time ("12m ago", "2h 14m ago", "yesterday") - 24-hour chart with three category tracks so you can see clustering at a glance - Pattern detection over the rolling 7-day window: average feed interval, average overnight sleep (8 PM to 8 AM), average diapers per day - Edit or delete any event with a tap or a swipe - Night-feed mode keeps the screen awake while the app is open - Share Summary writes a clean text recap of the last 24 hours straight to iMessage, WhatsApp, or email - Settings let you swap fluid ounces for millilitres, erase everything, and link out to more apps by the developer PRIVATE BY DESIGN Cribcue has no account, no ads, no analytics, no tracking, no subscription, and no developer backend. Baby photos use the PhotosPicker, so the app never asks for full library access. Babies and events live in this app's local storage and never leave the device. Cribcue is a one-time paid utility for parents who want a real log without recurring fees or cloud sync they did not ask for.

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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
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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.