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.
Brewday is the homebrew companion that guides you
$4.99 · 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.
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Combine features and design from your favorite apps.
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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 Brewday: Homebrew Companion: 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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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 user feedback and community support for troubleshooting
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Difficulty in tracking multiple brewing sessions
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Insufficient recipe sharing options
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Complexity in managing brewing ingredients
Validate with people who use this workflow before building.
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Brewday is the homebrew companion that guides you through every step of brew day — from heating strike water to pitching yeast. Whether you're brewing your first batch or your fiftieth, Brewday keeps you on track with a step-by-step timer, built-in recipes, and a beautiful batch log to track every brew you've made. BREW WITH CONFIDENCE Follow guided brew sessions with contextual tips at every step. Know exactly when to add hops, how long to mash, and what temperature to hit — all without leaving the app. RECIPES BUILT FOR HOMEBREWERS Start with 5 expertly crafted starter recipes — American Pale Ale, American IPA, Irish Dry Stout, Hefeweizen, and Blonde Ale — or build your own from scratch. Track your grain bill, hop additions, yeast, mash temperature, and more. HOMEBREW TIMER THAT WORKS A clean, distraction-free mash timer and boil timer with tap-to-set controls. No fussing with adjustment buttons mid-brew when your hands are covered in wort. BATCH LOG EVERY BREW Every completed brew day automatically creates a batch log entry with your gravity readings, ABV, rating, and tasting notes. Share your best batches as beautiful brew cards — perfect for homebrewing communities and Instagram. FEATURES - Step-by-step guided brew sessions - Homebrew timer with tap-to-set - Recipe builder with ABV, IBU & SRM calculations - Batch log with gravity readings and tasting notes - 5 starter recipes for popular styles - iCloud sync across your devices - Dark mode - Share your batch log as a craft brewery-style card Brewday is a one-time purchase — no subscription, no ads, no nonsense. Just you, your ingredients, and a great brew day.
Written user reviews are not shown here. Check current App Store reviews >
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.