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.
App Overview
Dive List
Dive List provides all the information from the FINA Degree of Difficulty Tables (effective as of 2017) in an easy to use interface
$0.99 · In-app purchases
PRICE
$0.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.2
5 ratings · Top 30%
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.
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Build Kit
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A product spec, screen plans, and build steps for your coding agent.
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What's included18 files
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
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Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Screen plan
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.
Differentiate and validate
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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Free quick prompt For a smaller starting point
Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for Dive List: map the core Sports workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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Opportunities
AI-GENERATED OPPORTUNITY HYPOTHESES
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
Add advanced metrics like visibility, water temperature, and dive site ratings.
Assumption to check: Limited dive tracking features compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Implement sharing options for social media or community features.
Assumption to check: Lack of social features for sharing dives
Validate with people who use this workflow before building.
Hypothesis 3
Allow users to access and log dives offline.
Assumption to check: No offline access to dive logs
Validate with people who use this workflow before building.
Hypothesis 4
Offer more valuable premium features to enhance user experience.
Assumption to check: In-app purchase limitations
Validate with people who use this workflow before building.
App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
App Store description
Dive List provides all the information from the FINA Degree of Difficulty Tables (effective as of 2017) in an easy to use interface. Use it to help craft a dive list for yourself or your diver(s). It also contains a quick score calculator you can use to determine the score of a given dive based on sample judges scores. Mark some of the dives as favorites for quick access. Show information from divemeets.com to see a dive's history, or to view your own profile. Dive List Pro - an in-app purchase allows for tracking multiple lists of dives. Use it to keep track of your 1-meter, 3-meter, and platform lists, as well as Summer League, Junior and Senior USA Diving. Document the score of a given list for history. You can even track lists for multiple divers for your friends on the team, or the athletes you are coaching. Sharing Lists - also with Pro, you can share lists with other divers so they can load it into their app as well. Dive List Pro is required for both users. See http://www.diverscore.com for a FREE online meet scoring service and other tools.
Written user reviews are not shown here. Check current App Store reviews >
Screenshots
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Build scope
Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Define the first version
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Set boundaries
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Check the hard parts
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
SUGGESTED BUILD STACK
React Native
Expo
Supabase
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BUILD KIT DIFFICULTY
Starter
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.
