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.
Toastie turns your iPhone into a toaster
$2.99 · In-app purchases
Evidence scope: #22 is the current overall US Paid chart position. 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.
Your first Build Kit is free with a verified email.
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 Toastie: grilled cheese game: map the core Games 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.
Toastie turns your iPhone into a toaster. Work through the orders on the menu, or make your own sandwich from everything in the kitchen. Make a grilled cheese sandwich from scratch: butter the bread, lay on the cheese and fillings, and put it in the toaster. Close the lid and it starts toasting in real time. Open it too early and the cheese hasn't melted; leave it too long and it burns. Take it out at the right moment and you get a perfect toastie. HOW IT WORKS • Butter the bread with your finger: cover the slice, on the right side. • Drag the cheese and fillings onto the bread and spread them out. • Hurry: customers are waiting. You have 15 seconds to build each order. • Press GRILL, close the lid, and wait for the sizzle. • Open it to check, or trust your timing, then serve. • Every sandwich gets a score card: recipe, plating, toasting and prep time. Five stars turn it gold. • Four stars unlock the next recipe. OFF MENU No ticket, no clock. Pick a loaf and put on whatever you like, from every ingredient in the kitchen. Grill it, and the cook tells you what worked and what to change. Give your sandwich a name, save it, and make it again whenever you like. Under CUSTOMIZE you pick the plate, the table and the wall, from eight of each. 13 ORDERS From a Classic Grilled Cheese and Cheese & Tomato to Brie & Cranberry, Kimchi, Mushroom & Taleggio, Pesto, Tomato & Gruyère and The Works. White sandwich loaf, sourdough and brioche, 19 real ingredients, and a recipe card for every order. More orders are on the way. MADE FOR IPHONE DUO Toastie plays on any iPhone and iPad. On iPhone Duo, the phone itself becomes the toaster: fold it shut to close the lid, and open it to see how your sandwich is doing. NOW IN SIX LANGUAGES English, Polish, German, French, Spanish and Japanese. ALSO • Share a picture of your toastie. • Your progress syncs with iCloud across your devices. • Game Center leaderboard and achievements. • No ads, no tracking, no in-app purchases. Pay once. The world's most expensive toaster.
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: Too many intrusive ads
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Pay-to-win mechanics
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Battery drain
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.
Not assessed in a Build Kit yet.
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.