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.
Baker’s Percentage is a focused iOS calculator for bread formulas, batch scaling, flour splits, extra ingredients, and effective hydration.
$1.99 · 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 Baker’s Percentage: 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: Lack of user reviews and feedback can hinder trust and adoption
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Limited functionality for advanced bakers
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: No social sharing features
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Subscription model may deter users
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.
Baker’s Percentage is a focused iOS calculator for bread formulas, batch scaling, flour splits, extra ingredients, and effective hydration. Start with the dough you want to bake. Set the loaf count and dough weight per loaf, then adjust hydration, yeast, salt, flour names, and additions. The app works backward to show a clear weighing sheet with grams and baker’s percentages for every ingredient. Target Dough Scaling Enter loaf count and grams per loaf. The app calculates total dough weight and the flour needed for the formula. Flour Splits Use one flour or enable a second flour. Set its share of total flour and the primary flour adjusts automatically. Extra Ingredients Add ingredients like butter, oil, egg, sugar, yogurt, seeds, or anything else. Enter the gram weight and optional water content. Effective Hydration See base hydration and effective hydration separately, including water contributed by extra ingredients. Clean Weighing Sheet Every ingredient is shown with its gram weight and baker’s percentage, ready to use at the scale. Saved Recipes Save, reopen, duplicate, and delete recipes locally on your device. English and Estonian Switch the interface language inside the app. Private by Design No accounts. No ads. No analytics. No tracking. Recipes and preferences stay on your device.
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.