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.
Turn your phone into a virtual time machine.
Free · 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 Historic Aerials: 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 image quality for historical views.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Difficult navigation to find specific locations.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Lack of user customization for saved locations.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: In-app purchase process can be confusing.
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.
Turn your phone into a virtual time machine. Explore historical aerial imagery from across the United States and see how landscapes, cities, and neighborhoods have changed through the decades. HistoricAerials lets you view historical aerial photography and map imagery from multiple decades directly on your mobile device. Instantly compare past and present imagery to understand how land use, development, and property boundaries have evolved over time. Because HistoricAerials imagery is fully orthorectified, locations shown in the imagery are spatially accurate. You can obtain precise geographic coordinates for features visible in historic imagery, even if those features have disappeared today. This makes it possible to locate forgotten structures, former industrial sites, abandoned roads, historic homesites, and other lost features directly in the field using GPS. This powerful research tool is used by: • Metal detector enthusiasts searching for old homesites, historic schools, and forgotten locations • Environmental consultants conducting Phase I Environmental Site Assessments • Archaeologists researching historical landscapes • Surveyors and engineers studying land development patterns • Oil & gas professionals locating historic well sites and legacy infrastructure • Real estate professionals investigating property history • Urban planners analyzing land use change • Historians and researchers exploring the past • Property owners and land investigators Key Features • View historical aerial imagery spanning multiple decades • Instantly compare past and present imagery • Fully orthorectified imagery that is spatially accurate • Obtain geographic coordinates for historic features and locations • Explore property history and land development patterns • Research sites for Phase I Environmental Site Assessments (ESA) • Analyze historical land use and environmental change • Discover abandoned roads, rail lines, historic structures, and forgotten places • Frequently used to research historical land use in property boundary and land use disputes • Perfect for archaeology, metal detecting, environmental consulting, and land research • Access the HistoricAerials imagery library from anywhere HistoricAerials hosts the largest online collection of historical aerial imagery in the United States, allowing anyone to explore how landscapes, properties, and communities have changed over time. Now you can carry this virtual time machine with you wherever you go.
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.