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.
Workouts + Maps + Routes combined in one app designed for the Apple Watch (requires Series 4 or later)
$5.99 · 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 Mappa - Watch Maps: map the core Health & Fitness 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 integration with other fitness platforms
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: User interface can be cluttered during map usage
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: In-app purchase options can be confusing
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Limited social sharing features
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.
Workouts + Maps + Routes combined in one app designed for the Apple Watch (requires Series 4 or later). Single one-time payment - no additional in-app payments or subscriptions to unlock features. Maps: • Tailored maps for hiking (Summer), skiing (Winter), and Dark mode (battery savings). • Satellite View: High resolution satellite imagery from Mapbox. • Slope Angle Shading: Overlay terrain steepness for safer navigation. • 100% Offline: Save regions directly from your watch. • Pro tools: Quickly measure distance and elevation gain to any point. Workouts: • Record your tracks and view metrics like heart rate, speed, elevation gain, and more. • Import and export GPX, FIT and TCX files. • Export workouts directly to Strava. • Merge workout files from other devices (Wahoo, Garmin) to combine more data with your Mappa workouts (Power, Cadence). Routes: • Overlay routes on the map from to see tracks, waypoints, and custom shape regions (CalTopo). • Import GPX, FIT, KML, GeoJSON files from any app. • Connect your Strava and RideWithGPS accounts to import directly on the watch. • Generate walking and cycling directions to any point on the map or search for a destination. Map Pins: • Quickly drop a pin for your car, a campsite, or start point. • Pins out of view are shown on the bezel (edge of the screen) so you can quickly orient yourself. • Export and import lists of pins. -- Automate with Shortcuts -- • Map: Toggle map and workout view • Routes: Find Route, Open Route, Show Route on Map, Show Route List, Import/Export Route • Workouts: Find Workout, Open Workout, Get Workout State, Start/Pause/Resume Workout, Import/Export Workout • Map Pins: Show Map Pin List, Drop a pin, Edit, Find, Open, Import, Export • Settings: Show Heart Rate Zones, Change Always on Display Settings, Toggle Offline Mode Designed for: Hiking, Trail Running, Backcountry Skiing, Stand up Paddle boarding (SUP), Kayaking, Mountain Biking, and more. Check out the knowledge-base - support.mappawatch.com - to get the most out of Mappa.
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.