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.
A simple and easy to use odometer
$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 GPS Odometer Pro: map the core Travel 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: Users report inaccurate distance tracking.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Limited history display options.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Occasional crashes on older devices.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: In-app purchase process is unclear.
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.
A simple and easy to use odometer. GPS Odometer only does one thing, and does it well: measure distance traveled. Includes run in background capability. Ideal for almost anything that requires measuring outdoor distance traveled such as walking, running, driving, hiking, etc. Note that GPS does not work well under a roof. For best results, use outdoors. Benefits of the paid version: - Lock screen Widget and Notifications that can be customized to display the information that you want to see. - Landscape and splitscreen support. - Ability to have multiple trips. Each trip can be stopped and started independently. - Receive notifications while the application is closed at distance intervals of your choosing. - Custom distance unit for each trip. - Save trips to optionally restore later or for your own records. Displays: - Distance - Time elapsed - Speed (average or current) - Displacement (straight line distance from your starting point). This can be hidden. Distance units include: - Kilometers - Miles - Nautical miles - Meters - Feet Speed units include: - Kilometers per hour - Miles per hour - Nautical miles per hour - Meters per second - Feet per second Other features: - Large font adjustable display. - Home screen and lock screen widgets. - Accurate to within 1 percent when compared to most car odometers under normal driving conditions. - Approximates distance traveled in some GPS dead spots (such as driving through a tunnel) by adding the as-a-bird flies distance to your trip. Please also note: - GPS Odometer does run in the background if you leave it running. Be sure to pause the trip when you are finished or battery life will be negatively affected. The timer stops when the trip is paused. Please visit the web page for more details.
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.