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.
You're standing in the liquor aisle trying to remember whether that bottle is already sitting on your shelf at home.
$3.99 · 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 Rum Runner - Spirits Ledger: 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.
You're standing in the liquor aisle trying to remember whether that bottle is already sitting on your shelf at home. Rum Runner settles the question. Catalog your collection with photos, ratings, and your own tasting notes. Track every bottle as Sealed, Opened, or Empty so you can see at a glance what's waiting to be cracked and what's already been enjoyed. Your collection never leaves your phone. SCAN IT AND MOVE ON Point your camera at a bottle's barcode and Rum Runner does the rest. Your latest discovery can be identified and added to your collection in seconds, with the details filled in for you automatically. Some rare and obscure bottles won't be in the databases, and those are often the bottles worth hunting for. When that happens, adding the details yourself takes only a moment. KEEP YOUR NEXT TREASURE IN SIGHT Captain's Bounty is your wishlist for bottles still waiting to join your collection. See something worth hunting down? Add it with a tap, then bring your list along when you're shopping so you always know which treasures you're searching for. TOAST YOUR CREW Black Flag Libations is your onboard recipe book for classic rum cocktails and house creations. Mix the perfect Daiquiri, Dark 'n' Stormy, Mai Tai, and six more timeless favorites with proper measurements and instructions. Then try Rum Runner's signature creation: The Stygian Darkness. TREASURE TALLY Keep a captain's record of what's in your hold and what you've spent building your collection. See your bottles organized by type and status, track what's sealed or opened, and know the total cost of your liquid treasure at a glance. YOUR LOGBOOK. YOUR SHIP. No account. No cloud sync. No one else keeping your collection's logbook. Your collection never leaves your phone. The only thing Rum Runner ever sends anywhere is a barcode number, and only when you ask it to scan one. Back up your entire collection, photos included, and stow it wherever you like. Export a CSV whenever you want your data elsewhere. It's your cargo. SHARE THE SPOILS Share a bottle worth talking about. Send a bottle's photo, name, type, and rating directly to a friend by message or email. Whether it's a rare find, a new favorite, or a bottle worth recommending, share the discovery from one collector to another. No feed. No followers. Just a bottle and the story behind it. BEYOND RUM Built for rum. Ready for any spirit. While Rum Runner was created with rum collectors in mind, it can catalog any bottle worth keeping track of: whiskey, gin, tequila, wine, and more. Photos, ratings, tasting notes, and scanning work the same across your collection. Only the Type field is rum-specific. A SPIRIT WORTH EXPLORING Rum has always carried a sense of adventure, discovery, and tradition. Rum Runner embraces that spirit with a nautical-inspired design that transforms your collection into a captain's logbook. From parchment textures and brass details to the atmosphere of a well-worn ship's cabin, every detail is designed to make managing your collection feel like part of the journey. Choose light mode, dark mode, or let Rum Runner follow your phone's settings. PAY ONCE One purchase grants you the full Rum Runner experience. No subscriptions. No in-app purchases. No locked features. Just your collection, ready to explore. From your first bottle to a hold full of rare treasures, Rum Runner helps you chart your collection, discover new favorites, and enjoy the journey along the way. Rum Runner is intended for adults of legal drinking age. Please drink responsibly. Rum Runner is a release from Stygian Darkness Studios, an independent studio building apps for iOS.
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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 cocktail recipes available
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: No social sharing features
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Lack of customization for spirits tracking
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Inconsistent updates and support
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.