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.
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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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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 Aqua Map Boating: 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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Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Free 14-day trial for all subscriptions Aqua Map offers weekly updated OFFICIAL NAUTICAL CHARTS (NOAA) for marine navigation. Purchase a chart subscription for the area of your interest, download the map areas for offline use, and connect your onboard instruments for a complete experience. ● BASIC FEATURES - Switch between manual and auto route planning modes - Record your GPS tracks - Store and share your navigation data (markers, routes, and recorded tracks) - Display tides and currents predictions and simulations - Increase your safety with Anchor Alarm - Enable Live Sharing to interact with the Aqua Map community - Display points of interest from the "ActiveCaptain" and "Waterway Guide" communities ● EXPERT SUBSCRIPTION Note: this subscription does not include charts; it must be paired with a chart subscription. - Marine forecasts (wind, waves, currents, gusts, salinity, sea surface temperature + weather information for any point on the map) - Overlay satellite images on the charts - Advanced AnchorLink with anchorage mirroring and email/telegram notifications for greater peace of mind while anchored, even if you are away from the boat - Connect your NMEA instruments via WiFi (autopilot, depth sounder, wind sensor, compass, GPS) and use their data on the app - AIS with automatic collision detection - Route Explorer for real-time information on all elements along your route ● MASTER SUBSCRIPTION FOR THE BEST NAVIGATION EXPERIENCE Note: this subscription does not include charts; it must be paired with a chart subscription. - All features of the EXPERT subscription are included in the MASTER subscription. + LOCAL DATA: > US: Army Corps of Engineers surveys for safe navigation in shallow waters > US: LNMs and "List of Lights" navaids from the Coast Guard. > Canada: NAVWARNs from the Coast Guard. > France: Warnings, Notices and Regulations from the PING > Denmark: Warnings and Notices from the DMA > Western Australia: temporary Notices from the Transport WA ● PURCHASE OPTIONS To access the charts, you need to purchase a chart subscription for the area of interest. Optionally, you can add the Expert subscription or the Master subscription to unlock extra navigation features and additional data. Subscription payments will be made through your account (Apple ID). The annual subscription will automatically renew unless canceled at least 24 hours before expiration. You can manage your subscription and disable automatic renewal in the account settings section after purchase. Terms of use: https://www.aquamap.app/terms-and-conditions Privacy policy: https://www.aquamap.app/privacy-policy
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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 offline map functionality
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Cluttered UI for beginners
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Inaccurate route suggestions
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Lack of voice navigation
Validate with people who use this workflow before building.
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.