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.
KEY FEATURES
$29.99 · 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.
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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 Newman’s Birds of Africa: 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 information about bird species
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Poor navigation experience in similar apps
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Lack of offline access for reference apps
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Inadequate search functionality
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.
KEY FEATURES • Includes over 1000 high quality photographs. • Universal app, pay once and get app for both iPhone and iPad. • 975 bird species (i.e. ALL the species for the region). • Detailed descriptions (including species status), illustrations and distribution maps. • Accurate illustrations of each bird as it is seen in the field, with labels showing diagnostic features. • Over 800 bird calls with multiple call types (song, duet, alarm, mating). • Easy navigation using the unique Newman’s bird groups. • Browse alphabetically by family name. • Search by common, scientific and Afrikaans bird names. • Identify birds by region or your current GPS. • Filter your results by bird size and colour. • Easily compare birds using cross-references in species descriptions. • Keep track of bird sightings in your online life list, allowing you to store the date, location and comments for each sighting. • Your life list is automatically backed up online and will be shared across your other devices that have the app installed. • The full app is downloaded to your device, so internet connectivity is not required to use the app (aside from the initial logging in to the life list – see the Important Note below). -------------------------------------------------------------------- Over 1,000 high quality photos added, no additional payment required. -------------------------------------------------------------------- "Opening the Newman’s app was like meeting Ken again – elegant, simple and shining with his wonderful art. The groupings make perfect and immediate sense, the page layout is instantly assimilated in a glance – this app now sets the ornithological standard and deserves a full 5-star rating." – Dave Pepler, Presenter of Groen on DSTV --------------------------------------------------------------------- In a world characterised by speed and urgency, birding offers the antithesis – a chance to sit still, unwind and simply observe – whether in one’s own garden or in a remote area of the bush. This Newman’s Birds app is the perfect companion for all birders, from the beginner to the keenest twitcher. It is based on the 2010 commemorative edition of Newman’s Birds of Southern Africa, one of the most popular birding guides in the region since its initial publication in 1983. -------------------------------------------------------------------- FREE VERSION: Try before you buy – there is a free lite version with full app functionality, limited to 60 species, so that you can see how it works before purchasing this app. Search for Newman's Birds of Southern Africa LITE. -------------------------------------------------------------------- IMPORTANT NOTE REGARDING THE LIFE LIST: This app includes a cloud-based life list that stores your sightings online. You need to log in to the life list while you have internet connectivity, but once logged in, you can add sightings when you don’t have an internet connection. When you next connect to the internet, the life list will sync, and your new entries should be added to your list. The life list will sync to all your devices that have the app installed and where you are logged in with the same details.
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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.