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.
Your whiskey shelf, in your pocket.
Free · In-app purchases
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.
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Combine features and design from your favorite apps.
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Generating… usually about a minute.
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
A product spec, phased build plan, differentiation notes, and screen references.
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Goal: Send a clear invoice after finishing a job.
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.
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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Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for BarrelBook: Whiskey Collection: map the core Food & Drink workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Your whiskey shelf, in your pocket. BarrelBook helps whiskey collectors turn physical bottles into a digital shelf they can scan, carry, and reference anywhere. Snap a photo — not a barcode. BarrelBook captures the bottle-level details collectors actually care about, including store picks, barrel numbers, bottle numbers, lot details, proof, warehouse, floor, and more. It then helps organize your collection into a clean, editable catalog entry in seconds. Built for whiskey collectors, with a bourbon-first edge. What you can do with BarrelBook Scan bottles in seconds • Snap up to 3 photos of a bottle • Capture brand, release, proof, size, and collector-specific details • Build a clean, editable entry without typing everything by hand Build your digital shelf • Organize your collection in one place • Track bottle status: unopened, opened, finished, archived • Search, sort, and filter your bottles however you like Capture the details that generic apps miss • Store picks • Barrel and bottle numbers • Warehouse and floor • Batch and lot information • MSRP, mash bill, and pricing data when available Keep your collection with you • Reference your shelf at the store, in a group chat, or when planning a pour • Add bottles manually with rich optional fields • Sync across devices when signed in Made for whiskey collectors Whether you're building a personal bunker, organizing your home bar, or keeping track of bottles that are too detailed for notes apps and spreadsheets, BarrelBook makes it easier to manage your collection. No barcodes. No typing. No spreadsheets By subscribing, you agree to Apple’s Standard End User License Agreement: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.barrelbook.app/privacy
Written user reviews are not shown here. Check current App Store reviews >
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
Assumption to check: Limited whiskey database with potential missing options.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Users may find the rating system confusing or subjective.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: In-app purchases may not be clearly communicated.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Search functionality may not yield relevant results.
Validate with people who use this workflow before building.
Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
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.