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
Cribbo
Cribbo is a private, beautifully simple organizer for your HomeKit and Matter setup codes.
$1.99 · In-app purchases
PRICE
$1.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 5.0
1 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.
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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What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
What's included16 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 Cribbo: 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 advanced search and filtering options.
Assumption to check: Difficulty in finding specific gear items
Validate with people who use this workflow before building.
Hypothesis 2
Add social sharing and community features.
Assumption to check: Limited user engagement features
Validate with people who use this workflow before building.
Hypothesis 3
Allow users to customize their profiles and preferences.
Assumption to check: Lack of personalization
Validate with people who use this workflow before building.
Hypothesis 4
Simplify the subscription process and clarify benefits.
Assumption to check: Subscription confusion
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
Cribbo is a private, beautifully simple organizer for your HomeKit and Matter setup codes. Keep everything in one place — secure, searchable, and always within reach. Whether you’re troubleshooting, resetting a device, or helping a family member, Cribbo makes sure your codes are ready when you need them. What Is Cribbo? Cribbo is built around two core principles: • A clean, distraction-free interface • Practical tools for identifying and managing devices No clutter. No accounts. No ads. Just your smart home, organized. Core Features Cribbo is packed full of useful features to make organizing your smart home a breeze. • HomeKit Import Quickly import your existing HomeKit devices into Cribbo. (Setup codes are not included in the import.) • Code Import & Encrypted Backup Bring your existing codes with you — or export them anytime. Encrypted backups keep your data safe and portable. • iCloud Sync Sync your devices securely across your Apple devices using iCloud. • Device Identification Tools For compatible devices, toggle power on/off directly from Cribbo to quickly identify hardware in your home. • Face ID & Touch ID Protection Protect your codes with biometric authentication and private fields. Stop digging through drawers. Stop searching old boxes. Stop losing your setup codes. Keep your smart home organized with Cribbo.
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 Native
Expo
Supabase
Zustand
React Navigation
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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.
