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.
Proudly NOT collecting your private data for over a decade — We debuted on the App Store on July 13th, 2008
$1.99
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.
Your first Build Kit is free with a verified email.
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 My Lists: 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 customization options for task management
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Lack of recurring tasks feature
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: No integration with calendars
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Absence of collaboration features
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.
Proudly NOT collecting your private data for over a decade — We debuted on the App Store on July 13th, 2008. Not once have we asked users to sign away data about themselves or their lists. Updated to latest version of iOS and iPadOS. Make lists for anything you need from shopping lists to movies to ideas for your novel, notes for a class to restaurants to try. Add images to your list items with the Photo Checklists option or keep track of notes with the Notes View to help manage larger amounts of data. You can keep track of additional information by adding images to the details view of an item in ANY list type. My Lists contains many great tools which allow you to share, sort, and reorder your lists and items the way that you need in order to effectively manage your daily life. Features: - Search for list items in Spotlight - Light and Dark Themes - Icons and latest Emoji - Random sort method - Support for Files app and any Cloud services it supports - Retina Display-worthy list icons - Add PHOTOS to any list item - 3 List View: Checklist, Photo Checklist and Notes - Automatically group checked items - Show count of unchecked items on Main List View - Search functionality which searches both item titles and descriptions. - Search based on status by searching for the terms "checked" and "unchecked" - Email backup of individual lists - Email visual versions of individual lists - Export or backup any or all lists - Visual count of checked items in list title (optional) - Reorder lists alphabetically or based on checked/unchecked - Manually order list items in "Edit" mode - Check or uncheck all items - Delete lists or items with a swipe
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.
Not assessed in a Build Kit yet.
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.