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.
Construction Estimator is an easy to use estimating program to help a contractor or home owner estimate materials and cost of a project.
$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.
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 Construction Estimator: 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: Poor user experience due to lack of features
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Limited project management capabilities
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: High price for basic functionality
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Lack of customer support
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.
Construction Estimator is an easy to use estimating program to help a contractor or home owner estimate materials and cost of a project. The main menu of construction Estimator shows 14 functions to choose from. Construction Estimator does not have a set beginning point, you can start with any function. Each function has inputs that relate to the area to be calculated. After inputting the measurements press the calculate button. This will calculate and display the cost and the materials. These totals are remembered and saved in memory. Totals are also displayed in the totals form. After completing a function you can press the EXIT button. This will return you to the main menu.. Accuracy Of course, the degree of your estimates accuracy depends on a number of factors. A small project, such as an addition, will likely produce a very close estimate. A bigger project, such as an entire home, may incur unexpected costs (such as more joists for support) and unforeseen difficulties (such as hard soil or bad weather). Careful input, along with experience that gives foresight, will yield a more accurate estimate. Nothing is more critical to the success of a project than accurate measurements. While Construction Estimator can estimate the total lengths of wood and yards of concrete a project may involve, they are only estimates. To this, we offer two critical suggestions: 1. Cut wood to your specific measurements, not to the lengths estimated by this program. 2. Use your own judgment to add to concrete estimates. Unusual ground conditions and irregular dimensions make concrete estimates an imprecise science. It's better to have some left over than to run out in the middle of a project. COST FILE Fill in the current costs For your area And press the SAVE button. This will save the cost file. It will be loaded automatically each time the Estimate program is loaded. E-MAIL. Your estimate can be e-mailed by pressing the E-mail button in the totals form. You should save your estimate, Complete instructions are included within the app. There are no advertisements or extra costs, the app is fully functional.
Written user reviews are not shown here. Check current App Store reviews >
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.