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.
Combat age-related vision decline with deep red light
$2.99 · 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 Red Light For Your Eyes: map the core Health & Fitness 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 session customization options
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: No community features to share experiences
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: In-app purchase prompts can be intrusive
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Lack of integration with fitness trackers
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.
Combat age-related vision decline with deep red light. Based on the 2021 UCL study, just 3 minutes a day can boost retinal mitochondria and sharpen color contrast. Description: Recharge your retinas with the first cross-platform 670nm simulation app for iPhone, iPad, Mac, and Apple Vision Pro. As we age, the mitochondria in our retinal cells—the batteries of our eyes—start to run out of energy (ATP). This leads to "tired" vision, faded colors, and poorer contrast sensitivity. Research published in Scientific Reports (Shinhmar et al., 2021) suggests that a simple, non-invasive intervention can help: exposure to deep red light. Just like recharging a battery, specific long wavelengths can stimulate mitochondrial function. WHY RED LIGHT: EYE THERAPY? • Science-Backed Protocol We don't just flash a red screen. We provide the tools to approximate the specific 670nm wavelength conditions used in clinical studies, directly on your device. • Apple Health Integration Your sessions now automatically sync to Apple Health as "Mindful Minutes," allowing you to track your eye wellness alongside your sleep and activity. FEATURES: • Pure Red Simulation: Calibrated to maximize the red pixel sub-channel on OLED screens. • Liquid Glass UI: A stunning, distraction-free interface designed for the modern iOS aesthetic. • Smart Timer: Pre-set to the optimal 3-minute dose recommended by researchers. • Optimisation Guide: Step-by-step instructions to configure your device's Color Filters for maximum efficacy. • Privacy First: Your health data stays on your device. We track nothing. A NOTE ON SCIENCE: While smartphone screens emit a broader spectrum (peaking around 620-640nm) compared to the monochromatic lasers used in labs, this app allows you to utilize the hardware you already own to pursue biohacking protocols. Disclaimer: This app is for wellness and educational purposes only. It is not a medical device and does not replace professional advice from an ophthalmologist.
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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.