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.
Hands off
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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 PDF AutoScroll: 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 PDF format support, causing issues with certain files.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Lack of customization options for scroll speed and direction.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: No cloud sync features for accessing PDFs across devices.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Insufficient user feedback options, limiting user engagement.
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.
Hands off. Just read. With a single tap, smooth auto-scroll begins. From research papers, textbooks, and documents to sheet music, stay focused on reading. Optimized for musicians reading sheet music. Keep your hands on your instrument with smooth auto-scroll, page-by-page speed settings, and a start delay. So manual scrolling doesn’t break your flow, this seamless auto-scrolling PDF viewer removes the stress of “page turning” and helps you keep reading all the way to the end without interruption. Key features • Very smooth auto-scroll (fine speed control, +/–) • Dark Mode • Highlights (add/remove, jump directly from the list) • Fast navigation with Table of Contents (TOC) • Search (move up/down) • Bookmarks & automatic last-position restore • Quickly reopen recent PDFs (iPad/Mac) • PDF Lists (save lists, add PDFs, move previous/next) • Split View (compare two PDFs side by side) • Repeat Reading Mode (infinite auto-scroll) • Full Screen Mode (for focused reading) • Fast support for large PDF files too Works across all Apple devices • iPhone, iPad, and Mac • Buy once, use on all your devices (no subscription) Especially great when • You’re reading long PDFs like papers, textbooks, or reports for extended periods • You want to read large PDFs smoothly without interruptions • You want to keep your hands free while reading sheet music • Scrolling keeps breaking your focus while studying or working Start enjoying a more comfortable PDF reading experience now.
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.