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.
Save time and make your day more efficient with this simple and clean widget calendar.
$3.99 · In-app purchases
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 Widget Calendar : Easy&Simple: 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 customization options for events
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: No integration with other calendar services
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Basic user interface
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Lack of recurring events 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.
Save time and make your day more efficient with this simple and clean widget calendar. Check and manage your dates and events right from your iPhone home screen. ◦ Home Screen Widgets: Three widget sizes (small, medium, large) are supported. Place calendar widgets and event list widgets where you want to see your schedule at a glance. ◦ Interactive Widgets: Tap any date in the widget to instantly see events for that day, and use the month/week/day navigation buttons to browse other dates. You can also complete reminders directly from the widget to manage your schedule without opening the app. ◦ Versatile Event Display: Show events on the calendar as color bars, dots, numbers, and more. Automatically optimized for your widget size. ◦ Clean Calendar View: Enjoy a simple and clean monthly/weekly calendar. Displays events from all calendars synced to iCloud, including the iPhone Calendar, Google Calendar, Exchange, and more. ◦ Reminders Integration: View your iOS Reminders alongside your events on the calendar, and complete them directly from the widget. Manage events and tasks in one place. ◦ Lunar Calendar: Supports both Korean and Chinese lunar calendars. View lunar dates on your calendar so you never miss a holiday or a lunar birthday. ◦ Anniversary Management: Save and manage important dates like birthdays and wedding anniversaries. Supports both solar and lunar anniversaries, with notifications at the time of your choice. ◦ D-Day: Track days remaining until important dates with D-Day. Past dates appear as D+, so you can grasp anniversaries at a glance. ◦ Add Events: Add events you want to save to your calendar with just one tap from the widget. ◦ Event Search: Find what you're looking for fast with one-tap search. You can also narrow your search by date range. ◦ iCloud Backup: Anniversary data is automatically backed up and synced via iCloud. Your data stays safe even when you switch devices. ◦ Dark Mode: Optimized colors for both light and dark mode for a comfortable experience anytime. If you have any questions or run into issues, please email us at '[email protected]'. :D ◦ This app supports Korean, English, Chinese, and Japanese.
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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.