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.
The Audubon Bird Guide is a free and complete field guide to over 800 species of North American birds, right in your pocket
Free · In-app purchases
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.
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Combine features and design from your favorite apps.
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Generating… usually about a minute.
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
A product spec, phased build plan, differentiation notes, and screen references.
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Goal: Send a clear invoice after finishing a job.
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.
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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Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for Audubon Bird Guide: 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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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
Assumption to check: Limited offline functionality
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Difficult navigation for some users
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Inadequate filtering options
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: High subscription costs for premium features
Validate with people who use this workflow before building.
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
The Audubon Bird Guide is a free and complete field guide to over 800 species of North American birds, right in your pocket. Built for all experience levels, it will help you identify the birds around you, keep track of the birds you’ve seen, and get outside to find new birds near you. With over 2 million downloads to date, it is one of the best and most trusted field guides for North American birds. KEY FEATURES: ALL-NEW: BIRD ID It's now easier than ever to identify a bird you just saw. Enter all you were able to observe—what color was it? How big? What did its tail look like?—and Bird ID will narrow down a list of possible matches for your location and date in real time. LEARN ABOUT THE BIRDS YOU LOVE Our field guide features over 3,000 photos, over eight hours of audio clips of songs and calls, multi-season range maps, and in-depth text by leading North American bird expert Kenn Kaufman. KEEP TRACK OF ALL THE BIRDS YOU SEE With our completely redesigned Sightings feature, you can keep a record of every bird you encounter, whether you're hiking, sitting on the porch, or simply catching a glimpse of birds out the window. We'll even keep an updated life list for you. EXPLORE THE BIRDS AROUND YOU See where the birds are with nearby birding hotspots and real-time sightings from eBird. SHARE PHOTOS Post your photos to the Photo Feed so other Audubon Bird Guide users can see your best bird shots. GET INVOLVED WITH AUDUBON Keep up with the latest news from the world of birds, science, and conservation. Find an Audubon location near you to go birding. Or see where your voice is needed and take action to protect birds and the places they need, right from your app. Have any questions or need help? Contact us at [email protected] About Audubon: The National Audubon Society protects birds and the places they need, today and tomorrow, throughout the Americas using science, advocacy, education, and on-the-ground conservation. Audubon’s state programs, nature centers, chapters, and partners have an unparalleled wingspan that reaches millions of people each year to inform, inspire, and unite diverse communities in conservation action. Since 1905, Audubon’s vision has been a world in which people and wildlife thrive.
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Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
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.