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.
Scuba Calendar helps you plan your scuba diving vacation based on the time of year, and the marine wildlife you'd like to see.
$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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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 Scuba Calendar: 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: Limited dive location data
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Lack of social features
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Diving log entry can be cumbersome
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: No integration with dive equipment tracking
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.
Scuba Calendar helps you plan your scuba diving vacation based on the time of year, and the marine wildlife you'd like to see. It also inspires conservation, by informing us about the wonders of the marine world and how we, as divers, can help protect the sea and engage in citizen science. Currently, you can search for more than 30 animals, in over 400 locations, across 70 countries. The information about sighting areas and wildlife is focusing only on the peak period for each scuba diving location. Though it is impossible to predict sightings with complete accuracy, our aim is to maximize your chances. We are constantly enlarging and fine-tuning the database. Key Features: SEARCH Select an animal you wish to see. You can also add a month and/or region. The app then determines the geographic locations where the chosen marine life can most likely be spotted. COUNTRY PAGE Once you select a desired country, the Country Page shows the types and locations of other marine life likely to be spotted in that country. The page also includes valuable information like local diving regulations, environmental sustainability recommendations, a list of hyperbaric chambers and more. MY MAP Keep track of your marine wildlife experiences on your own personal map. Add your sightings by selecting an animal, time of year and country. Take the opportunity to report on the environmental situation at the dive site (e.g. marine debris, corals in distress, etc.). DIVERS CONNECTED Divers Connected serves as a social platform for divers all around the world to share their experiences publicly. Check what other divers are logging and participate in building a database of sightings, which could help marine scientists in their research. ANIMAL FACTS Written in a fun and easy to understand way, this section will increase your knowledge about marine animals. MARINE CONSERVATION Scuba Calendar helps to increase awareness about critical threats to oceans and their precious inhabitants. We hope it will inspire many of you to get involved in marine conservation! For scuba divers: • Find where and when to find your favorite animal • Browse applicable regulations and practical information about your selected country • Log your sightings on a map • Report environmental issues at dive sites • Check what other divers are reporting from around the world, or filter by country, wildlife or time of year • Help in creating a massive database of sightings • Improve your animal knowledge in a fun way For scientists: • Take advantage of the database of sightings created by recreational divers for your research and conservation efforts (to determine migratory routes, population sizes, reproductive ecology, etc.) • Use uploaded photos of animals to identify exact individuals in your databases • Follow reports of the environmental status of a dive site to track changes in sea conditions and the consequences for marine life • Encourage citizen science by sharing specific information about animals and guiding scuba divers to correctly identify the species they have seen For scuba travel agencies: • Instantly offer clients suggestions on when and where to go • Get access to trustworthy data about animal sightings to plan the perfect itinerary • Keep clients up to date with actual sightings in an area • Become a leader in sustainable tourism by following and recommending tips for sustainable diving
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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.