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.
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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 Paperless: Lists + Checklists: 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 list appearance.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Lack of collaboration features.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: No reminder or notification system.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Basic analytics on completed tasks.
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.
Get the app that Macworld says "deserves a spot on your iPhone"! MAKE LISTS OF ANYTHING AND EVERYTHING Paperless is a simple but powerful app for making lists. Use it to create to do lists, make grocery lists, take notes, write an outline of a story, prepare notes for a presentation, make a list of gift ideas, plan a vacation... or anything else you'd want to make a list for. BEAUTIFULLY DESIGNED Assign a fun icon to each of your lists - there are over 450 to choose from. You can also select from 30 themes to customize the app's design to your liking. SIMPLE AND VERSATILE Paperless is easy to use with a clean, elegant and well thought out interface. Each list can either be a checklist or a regular list without checkboxes, making a wide variety of uses possible. REALLY HELPS YOU GET THINGS DONE For checklists and todo lists, many people prefer using Paperless over traditional "getting things done" apps - or, they use it in addition to one. There are no due dates or priority settings, so you're left to focus on the actual tasks at hand, rather than waste time changing those settings when your priorities change. Instead, if a particular task becomes important, you can simply move it to the top of the list. AUTOMATIC BACKUP AND SYNCING Automatically backup your lists and sync them between iOS devices via a free Dropbox account. POWERFUL FEATURES - send lists via email, others can import your list into their copy of Paperless - send a plain text version of a list via iMessage, or copy it into another app - easily duplicate lists - manually reorder lists and list items - sort list items alphabetically - copy and move items from one list to another - comprehensive search - passcode lock PRAISED BY THE PRESS "Paperless deserves a spot on your iPhone" - Lex Friedman, Macworld (4.5 out of 5 mice rating) "Paperless has a permanent spot on the first page of my iPhone's home screen... it will probably earn a similar spot on yours." - Marianne Schultz, AppShopper "... a good way to ensure things get done at your own pace, free of the disappointment of missing deadlines." - Nick Spence, Macworld UK "I've been trying many To Do apps since iPhone 1.0 -- from the expensive Things to Toodledo and others -- and I don't use any of them regularly. Most just require too much effort. Paperless is the first one I've found that hits that sweet spot between being simple enough you'll actually use it and powerful enough to be useful." - Marc Zeedar, REALbasic Developer Magazine (4.8 out of 5 rating) "This is one nice-looking list / task app... As a basic list app, the beautiful Paperless reigns supreme." - Bonnie Eisenman, 148apps.com (4 out of 5 rating) PRAISED BY USERS "Best app ever - The most incredibly useful app I've come across. Simple, effective and bloody marvelous!!!" "The simplicity of the interface and the flexibility given to the user is perfection." "Simply loved it - Best app I've ever downloaded, my life is so organized now! ..." "After having tried a good deal of apps to get myself more organized - both free and paid - it is clear that this tops them all. Other apps presented a kind of novelty; I could fool myself into thinking that I was more organized, but it was never long before I abandoned them because it was obvious that they consumed unnecessary time. Paperless, however, has truly helped. It is streamlined, it is simple, it is sumptuous" PLEASE RATE AND REVIEW If you love Paperless, please leave a review and star rating. Thank you!
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.