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.
Print to ALL printers (Not just AirPrint Printers)
$3.99 · 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.
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Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for PrintCentral for iPhone: map the core Productivity 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 printer compatibility across different brands.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: User interface can be confusing for new users.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: In-app purchases can be unclear regarding features.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Slow loading times when accessing large documents.
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.
Print to ALL printers (Not just AirPrint Printers). Print direct to most WiFi/Wireless printers without additional software. Print to ALL printers and any document type via your Mac/PC. Print remotely over mobile data and in corporate/other networks where WiFi is not available. View, store & print email, large documents & PDFs, files, attachments, photos, contacts and web pages on your iPhone/iPod Touch. •• iTunes App of the Week in UK & Europe •• ►► The Press love PrintCentral ◀◀ ≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈ MacWorld: "PrintCentral is much more than a printing utility—it is a veritable office center" AppCraver: "This app will let you print basically anything from basically anywhere." ►► Printing for Old & New Printers + PDF Conversion ◀◀ ≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈ > Print to ALL printers (Network/WiFi/USB/Bluetooth) via your Mac or PC or direct to most WiFi printers without additional software > Print from Pages, Numbers or Keynote extremely quickly & easily without the need for an AirPrint printer using Open in > Print from other Apps using "Open in" > Convert files, docs, spreadsheets, web pages & more to PDF (in-app upgrade required) > USB & Bluetooth printers can be used with free print server software (Windows & Mac) > Print remotely via 3G, 4G or Cloud > Print to AirPrint printers > Print using ALL the same document formats to ALL printers used by your Mac/PC ►► Unrivalled Document Reader & File Storage ◀◀ ≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈ > Read, view & print Office files, large size PDFs & ALL iWork files + many more formats > Open & Print files directly into PrintCentral from other apps supporting "Open in..." file sharing > Zip/Unzip files for reading & printing ►► Upgrade your Email ◀◀ ≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈ > Higher featured email app built into PrintCentral > View multiple email accounts in single inbox or on their own > Full email field search - across multiple accounts > Multiple email signatures with images, formatted text > Print & save email, and attachments for resending ►► WiFi Hard Drive + Cloud Transfer ◀◀ ≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈ > Mount your iPhone/iPod Touch as a hard disk on your Mac or PC > Fully integrated with Evernote > Full cloud services app - iCloud, CloudMe, Dropbox, GoogleDocs, Box.net, Transporter, WebDAV > Move/Print documents on your iPhone/iPod Touch from your Cloud account ►► Copy & Paste Printing & Transfer ◀◀ ≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈ > Copy & print web pages and email - retaining all formatting > Copy and transfer to another user's iPhone/iPod Touch using Bluetooth or WiFi (both devices require PrintCentral) > Copy and transfer to your PC or Mac via WiFi ►► Much Much more ◀◀ ≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈≈ > Browse and print web pages to ALL printers > Copy & print maps from any map app that allows copy > Print SMS/Text messages, Copy, open PrintCentral and print > Print contacts > Print address/shipping labels PrintCentral Pro is also available for business users with all of these features, plus printing from inside other apps and printing from your watch QUICK HELP - if you need it
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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.