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 Mosaic AI - AI App Builder: map the core Developer Tools 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: Expensive subscription
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Missing features
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Poor performance
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.
Build your own app — no coding needed. Mosaic is the easiest no code AI app builder to turn your idea into a working mobile app. Simply describe what you want — like “a journal with mood tracking” or “an RSVP app for my party” — and Mosaic builds it for you. If you enjoy apps like Cursor or Lovable, you’ll feel right at home with Mosaic. It even understands natural input, almost like writing in your own hidden vibecode. You can test the app right away, make changes by typing or tapping, and share it with others to get feedback. It’s fast, fun, and beginner-friendly. What you can build this week: • A personal journal with mood tracking • A habit tracker that reminds you daily • An event invite with RSVP and guest notes • A chatbot that remembers your questions • A notes app that scans photos into text • A content planner with post ideas Why people love Mosaic: • Just describe it: Write what you want, Mosaic builds it • Edit visually: Change text, layout, and colors easily • See it live: Instantly test and share your app • Smart features: Add buttons, images, forms, maps, and more • Use your data: Create lists and connect to public info • Start from examples: Pick a ready-made template and go Who it’s for: Anyone with an idea. Whether you're planning something, organizing your life, or just curious - Mosaic helps you bring it to life without writing a single line of code. Got an app idea? Describe what you want and Mosaic builds it for you - no code, no stress. Test it instantly and customize the look in minutes, not hours. Privacy: https://docs.google.com/document/d/1UPWpFfECwvQ3SC5UUiNs-TjbLW0NyO8drR8-etaSRu8/edit?tab=t.0 Terms: https://docs.google.com/document/d/1xVKU1DFmOMLhvLL4H79Ie98N3KWs0QDMQt43v6epUDk/edit?usp=sharing
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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.