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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$0.99 · 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 Carats Thickness,Weight,Shape: map the core Productivity 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 calculation options for various gemstone shapes.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: No user accounts or saved calculations.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Lack of visual aids or guides for input.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: In-app purchases for basic features 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.
are you looking for an easy and accurate way to calculate the carats of your jewelry? look no further! our ios app is here to help. with just a few simple inputs, you can quickly and easily determine the carat weight of your diamonds, gems, and other precious stones. introducing the newest addition to your jewelry toolkit: the carat calculator app for ios. with this app, you can quickly and easily calculate the carat weight of your diamonds and gemstones, ensuring that you always have accurate information at your fingertips. using the carat calculator is simple: just enter the dimensions of your gemstone, including its width, length, and depth, and the app will provide you with an instant calculation of its carat weight. the carat calculator app is a must-have for anyone in the jewelry industry, whether you're a professional jeweler, a gemstone collector, or simply looking to buy or sell a piece of jewelry. with its user-friendly interface and accurate calculations, it's the perfect tool for anyone who wants to stay on top of their gemstone carat weights. so why wait? get the carat calculator app today and take control of your jewelry collection. with its easy-to-use features and reliable calculations, you'll wonder how you ever managed without it. carats * carats weight (grams / carats / points / milligrams) * carats size (based on girdle length, girdle width, depth, stone type and facet style) gauge thickness converter * area converter (square inches to/from square centimeters) * distance converter (inches to/from centimeters) facet styles (listed in alphabetical order) :: cabochon cut, emerald cut faceted, marquise cut faceted, oval faceted, pear cut faceted, rectangular cushions, rectangular faceted, rectangular step cut, round faceted, square cushions, square cut faceted, and square step cut. gemstone types (listed in alphabetical order) :: achorite, agate, alexandrite, almandine, almandine spinel, almandine-spessartine, amazonite, amethyst, andradite, aquamarine, balas ruby, black opal, bloodstone, brazilian emerald, cairngorm, carnelian, cat's eye, chalcedony, chlorspinel, chrome pyrope, chrysoberyl, chrysoprase, citrine, color-change garnet, demantoid, diamond, dravite, emerald, feldspar, fire opal, garnet, ghanospinel, goshenite, green quartz, grossular, heliodore, heliotrope, hessonite, hyacinth, indicolite, jade, jadeite, jargon, jasper, labradorite, lapis lazuli, malaia, matura diamond, moonstone, morganite, morion, nephrite, onyx, opal, orthoclase, peridot, peristerite, praziolite, pyrope, pyrope-almandine, pyrope-spessartine, quartz, red beryl, rhodolite, rock crystal, rose quartz, rubellite, rubicelle, ruby, sapphire, sapphire spinel, siberite, smoky quartz, spessartine, spinel, sunstone, topaz, topazolite, tourmaline, tsavorite, turquoise, uvarovite, verdilite, water opal, white opal, and zircon this app features: • send your calculations or conversions by email • universal app (iphone, ipod touch, and ipad) • all iphone screens are supported • retina display graphics • fast app switching • automatically saves your inputs • latest version of ios is supported no network connectivity required. note: all information in this app is for informational purposes only.
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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.