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
Stuarts’ African Mammals
Discover and explore 620 African mammal species/genera with this comprehensive app by experts Chris and Mathilde Stuart
$15.99 · In-app purchases
PRICE
$15.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 4.5
11 ratings · Top 15%
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 should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
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 Stuarts’ African Mammals: 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
Incorporate quizzes or interactive maps to improve engagement.
Assumption to check: Limited interactivity and user engagement.
Validate with people who use this workflow before building.
Hypothesis 2
Offer a freemium model or more content for the price.
Assumption to check: High price point for users.
Validate with people who use this workflow before building.
Hypothesis 3
Add sharing options to social media.
Assumption to check: Lack of social sharing features.
Validate with people who use this workflow before building.
Hypothesis 4
Include videos or augmented reality features.
Assumption to check: Not enough multimedia 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
Discover and explore 620 African mammal species/genera with this comprehensive app by experts Chris and Mathilde Stuart. Fully updated, this app includes detailed species entries, photographs, videos, calls, distribution maps and search-by-country functionality. Quick identification features make this app the go-to field tool for students, scientists and all nature lovers. Now with new Smart search parameters. FEATURES INCLUDE: • Covers all 620 African mammal species/genera • Detailed species descriptions offer insight into key ID points and typical behaviour • Calls and videos of mammals in their natural environments • More than 4800 photographs and illustrations, including animal-to-human size comparisons • Easily identify mammals by their tracks or droppings • New Smart Search filters – search by activity, habitat, track length, track shape and dropping shape • The most recent research and taxonomy • Keep track of your sightings in a Life List • Compare two species side by side • Search and sort by English, French, German or scientific names ADDITIONAL NOTES * Uninstalling/reinstalling the app will result in the loss of your list. We recommend that you keep a backup from the application (My List > Export). * Apart from the initial download, no internet connection is required for the app to function. ****** For technical support or any great suggestions, please use the built in 'Contact Us' feature or head over to www.mydigitalearth.com. We’ll do our best to resolve problems as quickly as possible.
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
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Zustand
BUILD KIT DIFFICULTY
Expert
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.
