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.
Yeasta is the sourdough companion that knows what's next.
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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 Yeasta: Sourdough Tracker: 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 may find it hard to track multiple starters effectively
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Limited recipe options and sharing
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Notification system may not be robust
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.
Yeasta is the sourdough companion that knows what's next. Whether you're nurturing your first culture or juggling four starters at once, Yeasta keeps every feeding, every bake, and every outcome in one place. Open the app and it tells you the one thing that matters most right now. KNOW WHAT'S NEXT Smart Today watches your starters and your bakes. Overdue feeding, starter nearing its peak, bake halfway through bulk; the Home screen surfaces the one thing you should do next, the moment you open the app. BAKE WITH A GUIDE Start a guided bake from any recipe and Yeasta walks you through it step by step. Live timers tick on your lock screen so you can step away and never lose your place. Mark steps complete, add notes, log the outcome when the loaf comes out. CARE FOR EVERY STARTER Track rhythm, ratios, and readiness across every jar you keep. Log feedings in seconds. See which starters are peaking, which are napping, which need feeding right now. Edit or delete any log entry whenever you need to. RECIPES THAT TRAVEL WITH YOU Browse a growing sourdough library: classic country loaves, same-day breads, focaccia, pizza dough, and more. Scale any recipe by tap. Save your favorites. Start a guided session when you're ready. MATH MADE FOR BAKERS Built-in tools handle the math you used to do on the back of a napkin: hydration, baker's percentages, salt, starter scheduling, temperature conversion. EVERY BAKE, REMEMBERED The Journal keeps every feeding, every bake, every outcome grouped by day. Filter by type, search by name, or just scroll and remember that perfect loaf from last March. YEASTA PRO — Fully guided bake sessions with live timers and lock screen updates — Unlimited starters — Advanced planning tools — Full baking history, not just today — Unlimited favorite and custom recipes — iCloud sync across all your devices — New tools added continuously Monthly, annual, or Lifetime. No trial games, cancel anytime. BUILT WITH CARE No ads. No tracking. No data harvesting. Your baking is yours. Warm light and dark mode, Dynamic Island, Live Activities, Siri shortcuts: Yeasta feels like the rest of your phone. Yeasta may include Amazon affiliate links to baking tools, books, and ingredients. As an Amazon Associate, Yeasta earns from qualifying purchases at no extra cost to you. Built by one baker, for other bakers. Enjoy the rhythm!
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.