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
Snakes of Australia
Snakes of Australia is a comprehensive electronic field guide to Australian snakes
$2.99 · In-app purchases
PRICE
$2.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 5.0
1 ratings · Top 5%
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 included15 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 Snakes of Australia: 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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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
Enhance user engagement with quizzes or interactive features.
Assumption to check: Limited interactivity, only basic information about snakes.
Validate with people who use this workflow before building.
Hypothesis 2
Include a forum or comment section for user discussions.
Assumption to check: No community features for users to share experiences.
Validate with people who use this workflow before building.
Hypothesis 3
Implement a system for regular updates or new content.
Assumption to check: Static content without updates can lead to disengagement.
Validate with people who use this workflow before building.
Hypothesis 4
Offer more filtering options for users to find snakes based on multiple criteria.
Assumption to check: Lack of advanced search filters.
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
Snakes of Australia is a comprehensive electronic field guide to Australian snakes. Species profiles include photos, distribution maps, description of key characters, danger rating, similar species, conservation, etymology, pronunciation and more. Introductory chapters on key aspects of identifying snakes, snake venoms and first aid, and snake biology. Features: -Details on all Australian species of land snake - pythons, colubrids, elapids, file snakes, mud snakes, and blind snakes. -Over 600 photos from some of Australia's best wildlife photographers. -Most species have multiple photos, showing subspecies and variation. -Scale count search. -Can generate a species list for your current location using your device's GPS hardware (if present). -Can generate a species list for any location by tapping on a map. -Universal app for iPhone, iPad, iPad Mini and iPod touch. -Fully self-contained - no network connection is needed. This app will be updated as new species are described.
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.
