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.
WritePDF for the iPhone is more than just a common annotation tool, it is a powerful PDF modification/printing tool that is usually reserved for computers
$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.
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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 WritePDF for iPhone: map the core Business 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: Expensive subscription
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Missing features
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Poor performance
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.
WritePDF for the iPhone is more than just a common annotation tool, it is a powerful PDF modification/printing tool that is usually reserved for computers. Move beyond ordinary PDF viewing, form filling, PDF modification & annotation. WritePDF is the first app that brings together both ease of use and the sophistication needed for managing PDFs, word files, spreadsheets and many other documents on the iPhone. WritePDF is also the first app to be fully compatible with PDF readers on Mac & PC, any changes made to a PDF on an iPhone will be reflected when opened on a computer and vice versa. With the most powerful PDF modification and viewing engine ever made, WritePDF stands heads and shoulders above the rest! WritePDF is created & bought to you by one of the top business app companies - with years of iOS app experience from 2008, EuroSmartz is unrivaled when it comes to apps for use in business. - "WritePDF is by far the most powerful app of it's kind available on the app store today" - "I can finally merge non PDF documents into a PDF and leave notes for all of my colleagues" - "Form filling is made so easy with WritePDF, I have just applied for a new bank account using my iPhone" Main Features √ Modifying PDFs > Add arrows, circles, squares and other shapes to a PDF > Fill in PDF forms & add text > Use Highlighter to highlight single words or entire sections > Add web page links to words or sections of text > Transfer PDFs to & from other apps using "Open in.." > Fully compatible with most PC, Mac & iOS App PDF viewers, shows all changes > Insert pictures to a PDF > Quickly & seamlessly transfer PDFs or files from Pages, Numbers or Keynote using Open in √ Global Search > Search for keywords or phrases in ALL files stored within WPDF without opening them > Search results displayed as tapable links √ PDF Page Organization > Move, delete or add pages > Add, delete, rotate, copy/paste & rearrange pages > Add selected pages to an existing PDF from docs, spreadsheets or other files > Drag deleted pages back into document √ Form Filling > Easily fill in PDF forms, even with multiple fields and boxes > Save your signature in the app and reuse when needed > Email/print completed form right from within the app √ PDF Conversion & Merging > View/Convert/Merge Microsoft Office files, Photos, PDFs, Contacts, Web Pages, Email & Email attachments as well as many more file formats > Create a single PDF from multiple files even if they are a different format (i.e. merge a Word file with a Pages document with an existing PDF etc) > Save Web pages as PDFs > Print or convert PDFs from other apps using Open in or other methods √ Full featured Printing > Print direct to most existing WiFi or shared printers, or use the free printer software for ALL printers. > Print from Pages, Numbers or Keynote extremely quickly & easily without the need for an AirPrint printer using Open in > Print to all printers via your Mac or PC > Print remotely via 3G/EDGE or Google Cloud Print √ Reminders & Keywords > Set a reminder for a particular file, PDF or document > Add keyword metadata to any file for easy searching √ Cloud Services & Email > Save attachments directly from Mail to WritePDF > CloudMe, Box.net, Dropbox, Google Docs, iDisk, FTP, WebDAV all supported √ Copy Documents from your Mac or PC > Mount your iPhone as a network disk on your Mac/PC QUICK HELP - if you need it.
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.