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.
Tides PRO is a beautiful tide prediction app for iPhone, iPad and Apple Watch that helps you know up-to-the-minute facts about the predicted tide height in the United States, Canada, Atlantic, Pacific coasts and all o...
$3.99 · 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 Tides PRO - Tide Times: 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: Limited location options may frustrate users
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: In-app purchases may confuse users
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Data accuracy can vary by region
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: User interface can feel cluttered
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.
Tides PRO is a beautiful tide prediction app for iPhone, iPad and Apple Watch that helps you know up-to-the-minute facts about the predicted tide height in the United States, Canada, Atlantic, Pacific coasts and all over the world. Get high and low tide times, tide charts, tide tables for over 17000 of ports, harbors and coastal locations. Designed with lots of passion & love: * The application includes 4 modes: Tide graphs, Tide tables, Tide maps and unique "Tide watch" interface that provides all tide information at a glance * Tides PRO optimized for modern iPhone, iPad and Apple Watch devices to provide HD graphics, animations and video effects Tide graph: * Interactive graph shows tide predictions, current time, Sunrise, Sunset, Moonrise, Moonset times * Swipe left and right to get tide predictions with up to the minute accuracy for the next few days * Tap on "Calendar" to open calendar and get tidal predictions up to the next 365 days * Tap on "Now" button to show current time on the graph Tide tables: * Tide calendar for the next 365 days * Highest tides & lowest tides * Swipe up and down to see water levels * Tap on specific day to show it in Tide graph mode Tide watch display: * Live tidal clock * Count down the number of hours, minutes and seconds to the next High tide or Low tide Apple Watch: * Apple Watch complications: Modular Large & Small, Graphic Rectangular, Corner & Circular, Circular Small, Extra Large, Utilitarian Small & Large * Current water level * Today's high tide and low tide times * Sunrise/Sunset, Moonrise/Moonset times Map: * Provides fast and convenient access to local or international tide stations * View Tide stations near you * Tap on Tide station to get current water level, high and low tide times * Tap on "Star" to add tide station to the list of favorites Specifications: -High and Low tide times for the next 365 days -Sunrise, Sunset, Moonrise, Moonset times -Solunar charts -Current water level -Up to minute predictions -"Tide watch" interface that provides all tide information at a glance. -Min & max water levels displayed in a special designed interactive table -Interactive map of tide sites (local and worldwide) that provides information about current level, high tide and low tide times -Location can be added by name, by the map or using user's current location Supports over 17000 stations in all regions: 183 Africa 1155 Asia 171 Atlantic Islands 815 Austral-Asia 205 Caribbean Islands 34 Cen.America Caribbean 34 Cen.America Pacific 508 Europe 127 Indian Ocean 57 Mediterranean 43 Middle East 4292 North America,Atlantic 727 North America,Gulf 2777 North America,Pacific 196 Northern seas 341 Pacific Islands 155 S.America,Atlantic 52 S.America,Caribbean 142 S.America,Pacific 520 South East Asia in 150 countries: >7000 USA 1716 Canada 802 Japan 422 Australia 245 New Zealand 277 Philippines 108 Brazil 153 Russia 58 Kuril Islands 177 Indonesia 128 China 116 Chile 112 United Kingdom 80 Mexico 69 Greenland 98 France 74 Germany 54 Bahamas 47 India 47 Vietnam 52 Netherlands 34 Italy 33 Korea 22 Portugal ... the list includes almost all coastal countries around the world. Knowledge of tides is an important element of boating safety. Tidal information is essential for navigating a shallow waterway or placing your boat at anchor. The success or failure of a voyage can depend on the height or depth of a tide, while knowledge of current information can save fuel and make passage into a river or channel safer. Tides PRO goes further than the tables provided by the NOAA. The app automatically accounts for correction factors and provides instant information without requesting that you account for time lags, daylight savings conventions, or height differences between the reference stations and the locations you are seeking. Since the tidal information that is published in this app is not subjected to the use of the voyage, please do not use for navigation.
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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.