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.
Sunrise Simulator allows you to control LIFX and Hue lights as a sunrise alarm clock
$4.99 · 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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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 Sunrise Simulator: 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 functionality and poor user experience
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Bugs and crashes reported by users
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Lack of instructional guidance for new users
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Single static interface design
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.
Sunrise Simulator allows you to control LIFX and Hue lights as a sunrise alarm clock. You can choose the duration of the sunrise and your desired wakeup time. During the sunrise the app will gradually brighten the lights and increase the color temperature from warm to cool. If you haven't woken up by your set time, the app will play a sound you have chosen. You can control multiple lights from different manufacturers at the same time. You must have a smart lightbulb for the sunrise simulator to be fully functional. If you are in a location without a smart bulb, you can use the phone torch to simulate the sunrise. To do this, you MUST NOT lock your phone. If you do not any smart bulbs you can use the app as an audible alarm. The audible alarm can be any sound from your playlist, or you can choose from a variety of natural sounds such as waves, rain or bird calls. If you are a heavy sleeper you can also choose a siren. The siren setting will also strobe the light after the sunrise if you haven't cancelled the alarm. You can also use the app as a night clock as long as you do not lock your phone. You can adjust the brightness of the display by dragging your finger up or down on the screen. Version 3 supports multiple locations, so you can have different setups for different houses. The app will attempt to determine the location automatically, but you can also set the location manually.
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.