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 Plan
Dive Plan is a digital decompression table and log book, made using general public information, most compatible with PADI, SSI, SDI, NAUI, NAVI diving tables, and it is comparable with most of the other current diving...
$5.99 · In-app purchases
PRICE
$5.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 1.8
8 ratings · Below Average
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 included16 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 Plan: 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
Ensure thorough testing and debugging before launch.
Assumption to check: Low user rating due to bugs and crashes.
Validate with people who use this workflow before building.
Hypothesis 2
Add more features like dive planning tools and social sharing.
Assumption to check: Limited feature set compared to competitors.
Validate with people who use this workflow before building.
Hypothesis 3
Implement a modern design with improved user experience.
Assumption to check: User interface feels outdated.
Validate with people who use this workflow before building.
Hypothesis 4
Provide in-app guidance and robust help resources.
Assumption to check: Lack of user support and documentation.
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 Plan is a digital decompression table and log book, made using general public information, most compatible with PADI, SSI, SDI, NAUI, NAVI diving tables, and it is comparable with most of the other current diving organizations and their dive tables. Recreational dive planners are decompression tables in which non-stop time under water is calculated. The Dive Planner can be used to practice for your dive certification exams, and can be used as a general guide for planning dives, and logging your dives so you never forget what to enter into your paper log book. Dive Plan works for diving with air (21% Oxygen) filled tanks, as well as enriched air (nitrox from 21% to 40% oxygen). Please note that when diving on an altitude, special considerations must be taken into account, and different dive tables should be used. Dive computers use much more sophisticated algorithms for calculated non-decmpression limits, based on the whole dive, whereas the recreational dive tables are much more conservative and assume a square profile dive where the diver spends the entire dive at one depth.
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
Axios
React Navigation
BUILD KIT DIFFICULTY
Intermediate
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.
