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.
Brew better coffee with step-by-step guided recipes and a timed pour schedule for every method.
$0.99 · 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 Single Origin - Coffee Timer: 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: Users find the timer hard to use without clear instructions.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Limited variety of coffee recipes.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: No reminders for when to check the brew.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Premium features lack clear value.
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.
Brew better coffee with step-by-step guided recipes and a timed pour schedule for every method. Single Origin walks you through each stage of your brew — from bloom to final pour — with real-time timers, weight targets, and temperature guidance. When you're done, log your tasting notes so you can dial in your perfect cup over time. GUIDED BREW RECIPES Follow timed, multi-step recipes for Aeropress, Chemex, V60, French Press, Kalita Wave, Clever Dripper, and more. Each recipe breaks the brew into precise pour steps, wait periods, and actions like swirling or pressing — so you never have to guess. 60+ BUILT-IN PROFILES Choose from 9 Single Origin recipes, 17 Fellow profiles (including Drops collaborations), and 37 xBloom profiles. Every recipe includes dose, ratio, grind, temperature, and timing. IMPORT & SHARE RECIPES Import recipes from Fellow brew.link share codes or xBloom share links. Create your own custom recipes and share them with a unique code. BREW LOG & TASTING NOTES After each brew, record your dose, grind setting, water temperature, yield, and brew time. Rate your cup with stars and add freeform tasting notes. Search your history to see what worked. TASTING REMINDERS Get a notification after brewing so you can log your tasting notes while the flavor is fresh. SINGLE ORIGIN + Unlock unlimited custom recipes, 500+ community recipes, brew history search, accent colors, and custom app icons with a one-time purchase. Whether you're a home barista dialing in a new bag or a beginner following your first pour-over, Single Origin keeps you on track and helps you brew consistently.
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.