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.
Iron deficiency is common, especially during pregnancy & in menstruating women, vegetarians and vegans and people on low-protein, ultra-processed food (UPF), and restricted (eg gluten-free, dairy-free) diets
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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.
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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 Iron Counter and Tracker: 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 food database for iron content
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: No social features for accountability
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Lack of personalized recommendations
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Inflexible logging options
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.
Iron deficiency is common, especially during pregnancy & in menstruating women, vegetarians and vegans and people on low-protein, ultra-processed food (UPF), and restricted (eg gluten-free, dairy-free) diets. Symptoms include excessive fatigue due to anemia (which can lead to heart and other muscle damage), impaired mental and physical development, and immune dysfunction. Iron overload due to excessive dietary iron intake & habitual use of iron supplements may increase the risk of chronic kidney disease (especially among people who are hypertensive) & other chronic diseases. The app can also help people with hemochromatosis avoid iron overload. Set your target daily iron intake based on guidance provided in the app and your preferences for weights of food (g or oz) and display of iron content in foods and beverages (ie, mg/serving, %target/serving, mg/100g, mg/1oz, %target/100g or %target/1oz). Record food and beverage consumption using the barcode scanner (please note that only manufacturers in the US are required to include iron content in the nutrition label read by the scanner), dictation, search or by favoriting foods and using the serving sizes provided (which can be changed at any time). Tap the notepad to add notes. Monitor daily and long-term progress, export data to share with healthcare providers, synchronize data with other First Line Medical Communications Ltd nutrient counter apps, and share data with Apple's HealthKit. Add your own foods and recipes and change serving sizes to personalize the app's 400-item database for you. All food and beverage popups indicate whether the item is a plant, good prebiotic, probiotic or ultra-processed food (UPF) to inform a healthy diet and whether they are high or low FODMAP per serving where data are available to support people with irritable bowel syndrome. The app also provides nutritional information for many healthy foods and supports a healthy gut microbiome diet using color-coded type and icons.
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.