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.
Any area
$4.99 · 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 Geo Measure: Area & Distance: map the core Navigation 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: Apps can be inaccurate in distance/area measurements
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Limited features for saving and sharing measurements
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Difficulties with user onboarding
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Inconsistent performance on older devices
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.
Any area. Any distance. On a map. How many acres is that field? How far is the walk to the station? How much fence does the new lot need? Geo Measure answers on a map: tap the corners, read the number. On iPhone, iPad, Mac and Apple Vision Pro, from one purchase. TAP, DRAG, BEND Tap the map to drop points. Drag a pin to move it, with a loupe that shows exactly where it sits. Tap the small dot on an edge to bend it. Tap a pin to delete it. Every step is undoable. AREAS, DISTANCES AND CIRCLES, IN ONE FILE Keep several shapes in one document: the north field, the fence line, the sprinkler's reach. Each has a name and a colour, and the totals add up at the bottom. Circles by radius, with diameter and circumference. THE RIGHT NUMBER Areas and distances are computed on the WGS84 ellipsoid, the way surveying software does, so a plot in Norway and a lot in Kenya are both right. Acres, hectares, ares, square feet, square yards, square metres, square miles, square kilometres and tsubo; kilometres, miles, metres, feet, yards and nautical miles. The outline warns you when it crosses itself. EVERY POINT, WRITTEN DOWN Coordinates in decimal degrees or degrees, minutes and seconds; the length and bearing of every leg; the perimeter. Type a coordinate to add a point exactly. Add the point where you stand, or walk the boundary and let the phone drop a point every few metres. IN AND OUT Export GeoJSON, KML for Google Earth, CSV for a spreadsheet, GPX for a GPS, a PNG of the map, or a PDF report with the map and every point. Import GeoJSON, KML and GPX. Print from the Mac and from the phone. MADE FOR THE MAC Documents in windows, autosave and versions, a full menu bar: ⌘1, ⌘2, ⌘3 for a new area, distance or circle, ⌘0 to fit, ⌘F to search, ⌫ to delete a point, ⌘, for settings. Drop a file on the map to import it. ON IPHONE AND IPAD The map fills the screen and a small card carries the number. Trace a shape with a finger or the Pencil. Files live in Files and iCloud Drive and open on every device. YOURS STAYS YOURS No account, no server, no tracking. Your measurements are files on your device, and in your iCloud Drive if you put them there. One purchase, no subscription, no in-app purchases. In English, German, French, Spanish and Japanese.
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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.