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.
Find the perfect time for people in different time zones.
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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 Meeting Planner by timeanddate: 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 time zone support
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Poor user reviews on interface
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Lack of calendar sync features
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Missing recurring meeting feature
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.
Find the perfect time for people in different time zones. • Add an unlimited number of participating cities from 5000+ locations worldwide. • The traffic light color-coded timetable shows the best meeting time based on each location's local time, normal business hours, and public holidays. Plan a business meeting based on green lights, a private call on the yellow light, and avoid the red hours if you don’t want to wake someone up. • Select the time within 15-minute slots and choose the duration of your meeting. • Choose am/pm or 24-hour time format. • DST changes handled automatically. • Export meeting times to your calendar. • The app supports dates in the Gregorian calendar. • Share meeting information via email directly from your device. The email includes the local times for all participants and link to the online timetable for your meeting. The ICS calendar file is attached by default to ensure import to the correct calendar. • All meetings are automatically saved. Use the duplicating function to reschedule a new meeting with the same participants. • Meeting Planner auto-synchronizes the time, correct time zones, and Daylight Saving Time changes based on timeanddate.com’s highly accurate databases.
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.