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
Marine Fish Great Barrier Reef
---> You must have iPhone 5 or up and iOS 9 or above for this update
$4.99
PRICE
$4.99
No in-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
N/A
No ratings yet
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.
Build your own version
Build Kit
Make this idea yours
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Add to a Remix
Combine features and design from your favorite apps.
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Make it yours Optional
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
What's included15 files
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
Preview a sample Build Kit No email needed
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 Marine Fish Great Barrier Reef: map the core Reference workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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Continue in Rork >
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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
Incorporate quizzes or interactive elements to enhance user engagement.
Assumption to check: Limited interaction and engagement with content
Validate with people who use this workflow before building.
Hypothesis 2
Enhance UI with modern design principles and improved graphics.
Assumption to check: Basic visual design and layout
Validate with people who use this workflow before building.
Hypothesis 3
Add a section for user contributions or discussions about fish species.
Assumption to check: Lack of community features
Validate with people who use this workflow before building.
Hypothesis 4
Allow users to download favorite fish details for offline viewing.
Assumption to check: No offline access to content
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
---> You must have iPhone 5 or up and iOS 9 or above for this update. This field guide will place right at your fingertips, anytime and anywhere, the most comprehensive collection of Marine Fish species to be found in the Great Barrier Reef, Queensland, Australia. - NO WEB CONNECTION REQUIRED. - There are 890 species represented pictorially. - An outstanding collection of Marine Fish from all the Great Barrier Reef. - No matter where you are, no matter how isolated you may be, you can identify your fish finds. - This identification series is updated when new taxonomic information is available or when new species are added. - Although books have their place, the benefits of this app over reference books are many. - This app is Searchable - search for species names, authors, sizes, colors, families, orders or photographers, try that with a book! - This app is convenient and easy to use. - This app is user friendly and you can tick off species as you find them, yes you can do that with a book, but then you can email your ticked species list, try that with a book. - You can add Remarks to Species and can easily save them digitally, try that with a book! - And this app is up to date with the latest taxonomic data.
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
react-navigation
axios
react-native-gesture-handler
react-native-reanimated
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.
