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.
Build your own widgets with the first real widget editor, edit your widgets the way you want
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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 Flex Widgets: 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 widget customization options compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: User interface can be confusing for new users
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Performance issues with many widgets on screen
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Lack of advanced features like scheduling for widgets
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 widgets with the first real widget editor, edit your widgets the way you want. We bring you a super intuitive, powerful widget editor. The all in one widget app. You can place: - texts, icons, emojis, shapes - images, image slideshows - health data like heart rate or steps count (Flex Widgets gets this data from your Health app) - drawings, buttons, shortcuts buttons - weather icons, weather text elements - date elements, countdowns, countdown visuals, calendars, week overviews - digital time elements, analog clocks - border outlines - and more elements in your widgets. (If you want your health data like heart rate, steps count, exercise time to be displayed inside of your widgets you need to grant the Flex Widgets access to your Health app.) With our widget editor you simply place elements on your widget, edit, move, resize and rotate them. Those elements can be placed on top of each other and you can edit them however you want. Everything is fully comstomisable. Change the text font, color your widgets, add outlines and place as many of the mentioned elements as you want. Share widgets The cool thing is: you don’t even need to be creative to enjoy our widget editor. You can use the widgets others have created or pick out of the widget gallery inside of Flex Widgets. Sharing widgets is super simple. Just press share and send your widget link to your friends! Widget Themes You can also give all your widgets the same look by creating widget themes. So every widget can have the same font, background color, outline border, etc. Here are some more cool features: - Add a drawing element to your widget and turn it into a sticky note. Tapping on it on your homescreen will let you draw on it! - Add buttons to your widgets to open websites or run shortcuts. - Add picture slideshows and have the pictures change every minute. - Health charts: display your heart rate, activity, walk distance and many more health data points in our fully customisable health charts to see how your body is doing. (Flex Widgets gets this data from your Health app)
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.