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.
cestari ingredient substitution guide
$19.99 · 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 Cestari Smart Swap: 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 engagement due to lack of community features.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Difficulty in finding nearby food items.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: User onboarding can be overwhelming.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Limited food categories may restrict swaps.
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.
cestari ingredient substitution guide cestari is free to download. access to the full ingredient substitution guide and premium features requires a one-time in-app purchase. no subscriptions. never let a missing ingredient stop you from cooking again! cestari’s ingredient substitution app is your trusted kitchen companion, providing reliable ingredient substitutions with exact ratios, technique tips, and context-specific guidance to help you cook with confidence. what makes us different unlike basic substitution lists, cestari provides comprehensive guidance for every swap. each substitution includes exact replacement ratios by volume and weight, flavor similarity ratings, and clear explanations of when to use—and when to avoid—each alternative. we tell you not just what to substitute, but how to make it work perfectly in your recipe. premium features (unlocked with a one-time purchase) • exact replacement ratios – get precise measurements by volume and weight, so your recipes turn out right every time. • context-specific guidance – understand which substitutions work for baking versus cooking, and why some swaps require technique adjustments. • flavor similarity ratings – know how close your substitution will taste to the original ingredient before you commit. • technique tips – learn professional tips for getting the best results from each substitution. • instant search – find substitutions in seconds with our fast, intuitive search. • browse by category – explore all ingredients alphabetically when you want to discover new options. perfect for • home cooks improvising with pantry ingredients • bakers who need precise substitution ratios • people with food allergies seeking safer alternatives • vegan, dairy-free, or gluten-free cooking • budget-conscious cooks • last-minute cooking emergencies comprehensive coverage from everyday staples like butter, eggs, and milk to specialty ingredients like buttermilk, cream of tartar, and alternative flours—cestari has you covered. our content is carefully researched and based on tested cooking techniques. built for the kitchen cestari is designed to be used while you’re cooking. quick search, clear information, and no distractions—just the answers you need when you need them. about cestari we believe the best moments in life are shared around the table. cestari creates premium kitchen tools and practical food resources that inspire cooking, conversation, and connection among family and friends. important note this app is for informational purposes only. always verify substitutions if you have food allergies or dietary restrictions. baking is especially sensitive to ingredient changes—our guidance helps you navigate these nuances with confidence.
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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.