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.
Keep the overview of body temperature, medications and other events during an illness.
$0.99 · 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.
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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 Fever: map the core Medical 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 data visualization for temperature trends
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: No reminders for temperature logging
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: No integration with health data sources
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Basic UI with limited customization
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.
Keep the overview of body temperature, medications and other events during an illness. Note: Neither the iPhone/iPad nor this App is able to MEASURE the body temperature! Particularly in winter you often come down with a cold. Sometimes the cold is attended with raised temperature – worst case with fever. Not only a bad cold, also a number of other diseases come along with fever and need a quick treatment. Particularly children incline to fight against illnesses with fever. If you go to the doctor, it is good to know the exact course of the fever, because according to fever pattern and other symptoms the doctor can diagnose faster. Above all, if several members of the family are ill at the same time, you can keep the optimum overview with your fever diary. With FEVER you grasp simply and intuitively: ∙ Temperature and fever measuring zones (mouth, ear, arm, forehead or rectal) ∙ Medication and dose (e.g. Paracetamol, 1 tablet) ∙ Events and condition (e.g. headaches, vomiting) ∙ Notes Other features: ∙ Fever and illness adjustable for several people ∙ Easy representation of the temperature curve by means of graph ∙ Direct comparison to previous measurements (arrow and value) ∙ Directly representation of fever classification ∙ PDF & CSV Export ∙ Support for Celsius and Fahrenheit Notes: ∙ This program is not a substitute for a doctor's visit! With fever a doctor needs always to be consulted! ∙ Neither the iPhone/iPad nor this App is able to MEASURE the body temperature! (e.g. Breathing 2 minutes into the microphone is neither usable nor precise)
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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.