App Overview

Bird Id USA - backyard birds icon

Bird Id USA - backyard birds

Sunbird Images OHG · Reference

Identify birds of the USA with this stunning guide! Includes high quality images, plus songs and calls

$4.99 · In-app purchases

PRICE
$4.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
4.3
99 ratings · Top 30%

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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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.

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.

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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> SELECT BUILD PLATFORM:

Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.

// RORK SYSTEM PROMPT
Rork plan preview for Bird Id USA - backyard birds: 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 machine learning for better identification.

Assumption to check: Limited bird identification accuracy based on user input

Validate with people who use this workflow before building.

Hypothesis 2

Add social features for users to share and discuss sightings.

Assumption to check: Lack of community features for sharing sightings

Validate with people who use this workflow before building.

Hypothesis 3

Offer more free features to entice users before paywall.

Assumption to check: Paywall may scare off users

Validate with people who use this workflow before building.

Hypothesis 4

Expand with articles and videos on birdwatching.

Assumption to check: Limited educational 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

Identify birds of the USA with this stunning guide! Includes high quality images, plus songs and calls. No internet connection is needed. Record your own bird sightings with GPS position and photo too. With Bird Id identification can be enjoyed by the whole family. Have you ever seen a bird wondered "What kind of bird is that?" Bird Id is a great tool to help you quickly and easily identify 240 birds of North America. Its great fun to use too. For the bird enthusiast there is anatomical, ecological and taxonomic information too. Bird Id can be used to keep a log of your bird sightings making it easy to build a record of all the birds you've seen. Bird Id has been created by professional published ecologists, accept no cheap imitations! Sunbird Images® field guides are the only products on the market that use the KUSAM species identification methodology. This state of the art method is a modern taxonomic keying system designed specifically for use on mobile devices. The app does not need an internet connection, all content is downloaded when the app is purchased. Sunbird Images has also developed more nature apps: - Bird Song Id USA - auto recognition - Bird Songs USA + Canada - 900 species, 3100 songs - Tree Id USA - identify 1000 species - Mushroom Id - identify American mushrooms + a further 100 apps Visit our website for details: www.sunbird.tv

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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
React Navigation
Zustand
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.