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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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 DoubleList - Casual Encounters: map the core Lifestyle 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 profile verification leading to fake accounts.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Inconsistent user engagement metrics.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Complex navigation for new users.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Inadequate search filtering options.
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.
Doublelist is your go-to platform for meeting open-minded individuals. Inspired by the classic craigslist personals section, it offers an inclusive space where users of all orientations can explore connections, from casual encounters or long-term relationships. Navigate seamlessly through various categories, filter by location, and engage with people in real-time through private messaging. Key Features: • User-friendly design for easy navigation • Multiple categories to find exactly what you need (e.g. casual encounters, friendships, and relationships) • Privacy-first approach with strict user verification and discretion • Safe, discrete, and respectful environment fostering positive interactions • Built-in simple chat messaging • Hundreds of cities to select from based on where you are in the world • Global community of hundreds of thousands active users Whether you're searching for a new connection, to test boundaries or a partner, DoubleList has got you covered. Join the growing community of hundreds of thousands of users on Doublelist today and start connecting instantly! For more information, please review our: - Privacy Policy: https://doublelist.com/about/privacy_policy/ - Terms of Service: https://doublelist.com/about/terms/
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.