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.
Our apps are British-made, by British naturalists - we know our stuff! Fantastic photos, songs, calls, distribution maps and detailed information for over 200 birds - all the common and best known birds in Britain arr...
$2.99 · 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.
Kit ready. Verify your email to download it.
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.
JavaScript is required to complete mailbox verification.
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for Birds of Britain Pocket 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.
Preview ready. Verify your email to reveal and copy the full prompt.
JavaScript is required to complete mailbox verification. Return to this prompt preview.
Affiliate link: CloneChart may earn a commission at no extra cost
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: Not enough detailed information per bird.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: No community features or user engagement.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: In-app purchases can be confusing.
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.
Our apps are British-made, by British naturalists - we know our stuff! Fantastic photos, songs, calls, distribution maps and detailed information for over 200 birds - all the common and best known birds in Britain arranged by family or alphabetically. The specially written bird notes cover the appearance, habitat, diet, lifespan, nesting habits, rarity status, and distribution in Britain, as well as interesting facts. The photo-based Bird Finder will quickly identify a mystery bird, then you can mark it as seen, add your own photos, and make a note about it. Automatically note the current date, time, latitude, longitude and Grid Reference. The app includes iCloud syncing, so that if you have more than one device (iPhone, iPod or iPad) your sightings will automatically synchronise. "I don't say this often, but you guys should charge more for this neat little piece of work! I almost feel guilty now, for the price!" - AppStore review Great features! This is the ONLY budget British bird app with the following features: • A photo-based BIRD FINDER based on appearance, habitat, location, date and more • Carefully selected photos of MALES, FEMALES and JUVENILES, to show the main features • Labelled photos of KEY FEATURES • A COMPARE IMAGES feature • A SONG or CALL for EVERY BIRD • A HISTORY feature to make it easy to go back to the last bird you looked at • Select the birds for the area WHERE YOU LIVE • European distribution maps for EVERY BIRD • A BACK-UP system so you can save your data • iCLOUD syncing to synchronise your sightings across your devices The Pocket Birds app includes birds that are likely to be seen without making a special trip, plus well-known species. Want more? For the full works, look for Birds of Britain Pro: A Field Guide.
Written user reviews are not shown here. Check current App Store reviews >
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.