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 GameVault - Collection Manager: map the core Reference 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 game database for browsing.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: No social sharing features.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Basic UI/UX design.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Lack of detailed game information.
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.
PAY ONCE, OWN FOREVER. NO ADS, NO SUBSCRIPTIONS GameVault is the easiest way to catalog and organize your physical video game collection. Whether you collect for PlayStation, Xbox, Nintendo, Sega, or PC, GameVault keeps your entire library in one place, synced across all your devices with iCloud. SCAN, SEARCH, OR ADD MANUALLY Add games to your collection in seconds. Scan a barcode with your camera and GameVault automatically looks up the title, platform, publisher, and cover art. Search an online database of hundreds of thousands of games to find any title. Or add games manually with full control over every detail. TRACK WHAT MATTERS Every game in your collection tracks the details collectors care about: platform, publisher, physical condition (Sealed, Complete in Box, Boxed, or Loose), cover art, barcode, description, and your own personal notes. Snap a photo of your game with your camera or pick one from your photo library. COLLECTION AND WISHLIST Keep your owned games and your wishlist separate with a simple tap. Switch between Collection and Wishlist views instantly to see what you have and what you still need. FILTER AND SORT YOUR WAY Find any game fast. Sort by title, date added, or platform. Filter by platform family, individual platform, or condition. Platform filters are organized by family so you can drill down to exactly what you are looking for. COLLECTION STATISTICS See your collection at a glance with charts and insights: - Total games count - Collection vs. wishlist breakdown - Platform distribution - Top platforms - Collection growth over time - Recently added games IMPORT AND EXPORT Back up your entire collection to a JSON file or move it to another device. Import a previous backup to restore your library instantly. iCLOUD SYNC Your collection syncs automatically across all your devices with iCloud. Add a game on your iPhone and see it on your iPad. 30+ SUPPORTED PLATFORMS PlayStation 5, PS4, PS3, PS2, PS1, PSP, PS Vita, Xbox Series X|S, Xbox One, Xbox 360, Xbox, Nintendo Switch 2, Switch, Wii U, Wii, GameCube, N64, SNES, NES, Game Boy, Game Boy Advance, DS, 3DS, Sega Genesis, Saturn, Dreamcast, PC, and more. SMART TITLE CLEANING Scanned barcodes often return messy titles full of platform names, edition labels, and retail junk. GameVault's title cleaner automatically strips all of that, leaving you with clean, readable game titles.
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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.