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.
terms of use (eula): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
$3.99 · 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 PGUtilityEstimate: map the core Finance 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 functionality compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Lack of user reviews and ratings
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: No social sharing options
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Inadequate support for multi-utility estimates
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.
terms of use (eula): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ the punta gorda utility estimator app enables you to enter your water gallon usage from zero to 50,000 gallons along with other selection criteria to obtain an estimate of a city of punta gorda utility bill. the use of this application requires a purchase of either an annual subscription or a lifetime use purchase. at least once each year the city of punta gorda revises its utility ordinances which subsequently requires updates to this application to adjust calculations to conform to revised ordinances. the annual subscription provides estimates and all annual updates for ordinances within the subscribed year. the lifetime purchase provides all estimates and annual updates for ordinances for the lifetime of application use. this app estimates bills for residential utility customers within the city limits or outside the city limits, if they are serviced by punta gorda. understanding punta gorda’s utility bill can be frustrating. their bill only offers four summary totals: water, wastewater, refuse and tax. where is the detail for water, wastewater and refuse? punta gorda wants you to reduce irrigation and conserve water. how much would it cost if you used no water? the estimate will show you the minimum fees for water and wastewater. if you do conserve, how would you determine the impact on your bill? if you’re using 15,000 gallons a month now and you conserve, how much will 10,000 gallons cost? how about 8,000 gallons? how does that conservation change total cost, water and wastewater? what are minimum charges? the estimates you can create with this application will answer these questions and will allow you to know with certainty what to expect. rather than read meters, punta gorda sometimes estimates water use. water use has tiers, each with a higher price. if punta gorda estimates your water use for one month, but then reads the meter the next month, are you overpaying because that estimate moved you to a higher priced tier for the bill that arrived soon after the city read the meter? how do you estimate and compare bills? the punta gorda utility estimator app not only allows you to estimate a bill for any usage to 50,000 gallons but the estimate also reveals how much that bill has increased from past fiscal years. to use the app, you need only enter how any gallons you want to estimate, determine the past fiscal years (2024, 2025) for comparison to current fiscal year 2026 rates, and indicate whether you reside within the city or out-of-the-city. you can read your meter at any time and know your exact usage to use for an estimate. the estimate will show you the cost for the entered usage. the use of this application requires either an annual subscription or a lifetime purchase. the annual subscription will provide one year of use and be renewed automatically. the lifetime purchase will last for the lifetime of application use. utility bill calculations are adjusted every time the city of punta gorda issues a new utility ordinance during the annual subscription period or throughout the lifetime with lifetime purchase. the punta gorda utility estimator is not sponsored by, nor does it have any affiliation with the city of punta gorda. this punta gorda utility estimator is developed by an (sdvosb) service-disabled veteran-owned small business.
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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.