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.
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Free
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 TapCook: Budget Meal Plans: 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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Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
1. Enter your ZIP or postal code and pick the grocery store you actually shop at 2. Tell us how many you're feeding, which nights you cook, and what you want to spend 3. Get a week of dinners and one grocery list, totalled at your store TapCook plans your dinners for the week and tells you what the groceries will cost before you leave the house. Instead of deciding at 6pm, scrolling for ideas, and finding out the damage at the register, TapCook builds the week and the shopping list together — and keeps the total under the budget you set. Tick off the staples already in your cupboard and they come off the bill, this week and every week after. Don't like a dinner? Swap it and the list updates. TapCook works with grocery stores in the US and Canada. TapCook subscriptions are $9.99/month, or $29.99/year with a 7-day free trial on the yearly plan. Prices are in US dollars; in Canada, you'll see your price in Canadian dollars before you subscribe. *Grocery Prices in TapCook are estimates, not live prices from any retailer. They start from a national reference price for each ingredient and are adjusted for the chain and region you choose. Real prices change often and vary by branch, so your checkout total will differ. TapCook is not affiliated with, endorsed by, or connected to any grocery store, and store names are used only to show which one a plan was priced against. *Always review ingredients, measurements, cooking instructions, food-safety guidance, and allergy information before cooking. Dietary and "won't eat" settings are a convenience, not an allergen control. Have an idea, question, or issue? Email us at: [email protected] *BUILDING AND VIEWING YOUR WEEKLY MEAL PLANS REQUIRES A SUBSCRIPTION TERMS: https://tapcook.co/terms
Written user reviews are not shown here. Check current App Store reviews >
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 recipe variety may not satisfy all dietary preferences
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Difficulties in customizing meal plans
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Lack of nutritional information for meals
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: No social sharing features
Validate with people who use this workflow before building.
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.