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.
Actual Currents brings tidal currents to life with real-time animated particle visualization on a nautical-grade interactive map.
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 Actual Currents: map the core Weather 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 may find it difficult to switch between different locations quickly.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Weather alerts are often not timely or detailed enough.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Some users feel overwhelmed by too many options in settings.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Maps can be slow to load or not intuitive.
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.
Actual Currents brings tidal currents to life with real-time animated particle visualization on a nautical-grade interactive map. See the actual flow of water in your area — not just tide times, but the speed and direction of tidal currents rendered as thousands of flowing particles over a detailed heatmap. Plan your trip with confidence by scrubbing through time to see how currents change throughout the day. FEATURES • Animated tidal current visualization with speed-colored particles and GPU-accelerated heatmap • Time scrubber — view current predictions for any time, past or future • Globe view with global ocean currents when zoomed out • Real-time wind overlay with global weather data • ENC nautical chart data with navigation aids, depth soundings, and depth contours • Satellite, bathymetry, and nautical basemap options • Route planning with current-aware analysis • Trip logging with GPS drift tracking • Location search to jump to any harbor or waterway COVERAGE • US Atlantic coast — Maine to Florida • US Pacific coast — Washington to California • Gulf of Mexico • Global ocean surface currents BUILT FOR BOATERS Whether you're sailing, fishing, kayaking, or navigating commercially, understanding tidal currents is critical for safety and efficiency. Actual Currents gives you an intuitive, visual understanding of water movement that tide tables alone can't provide. SUBSCRIPTION TIERS • Basic (free) — Real-time currents within ±3 hours of now • Pro ($4.99/mo) — Full historical and forecast access • Unlimited ($39.99/yr) — Full historical and forecast access with 7-day free trial Terms of Use: https://www.actualcurrents.com/terms.html Privacy Policy: https://www.actualcurrents.com/privacy.html
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.