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.
this application provides the user with detailed information about standard screw threads in both metric and imperial values.
$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.
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Combine features and design from your favorite apps.
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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 Thread Data: map the core Reference 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 data visualization options compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Poor user ratings due to crashes and bugs
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Difficult navigation and unclear features
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: High cost for in-app purchases without clear value
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.
this application provides the user with detailed information about standard screw threads in both metric and imperial values. data includes a pictorial representation of the thread form, thread angles, depth of thread, height of thread, thread pitch, radius and crest sizes, major,minor and effective diameters, recommended tapping drill sizes and clearance drill sizes. simply double tap the screen to view the thread picker. select the thread form standard from the following options:- ba, bsw, bsf, metric coarse, metric fine, unc, unf, unef, bsp, bspt, npt, pg, g, select the thread size of interest from the available standard sizes. the application will display the relevant thread data for screw cutting or thread milling, and the recommended drilling size for tapping operations. use the slider control to adjust the drill diameter to an available-sized drill in metric, imperial or gauge standard, and see the corresponding effect on thread engagement, or select a desired thread engagement and see the drilling size recommended. toggle between metric and imperial results. simple additional information on each thread standard is provided. the drill standard tab allows the selection of gauge or imperial fractional drills and shows the corresponding metric equivalent. ideally suited to engineers, machinists, inspectors, hobbyists, apprentices, designers and engineering students, or others needing to drill and tap, or screwcut, the application provides convenient reference data without resorting to an engineering handbook or manual. future releases will add more thread types and sizes, as well as further functionality to enhance the product. suggestions for improvement are gratefully received using the inbuilt report function.
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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.