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.
Track your weight journey with ease – no account required.
$9.99 · 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 Bobofit: Weight & BMI 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 user engagement features, leading to lower retention.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Basic UI lacks modern aesthetics, which may deter users.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Only supports weight tracking without additional metrics like body fat percentage.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: User reviews mention bugs and crashes.
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.
Track your weight journey with ease – no account required. Bobofit is a simple, privacy-focused weight tracking app designed to help you reach your health goals while keeping all your data securely on your device. Whether you want to lose weight, gain muscle, or simply monitor your health, Bobofit gives you the tools you need without compromising your privacy. Log your weight in your preferred unit – kilograms, pounds, or stones – and watch your progress unfold through beautiful interactive charts and detailed history views. Set personalized weight goals and track body fat percentage alongside your weight to get a complete picture of your transformation. Seamlessly sync with Apple Health to import your existing weight measurements from the past year, keeping all your health metrics in one convenient place. Capture your visual transformation with progress photos stored privately in your personal gallery, and celebrate how far you've come. The built-in BMI calculator helps you understand your Body Mass Index and track how it changes over time. When you need to share your progress with healthcare providers or keep records for yourself, simply export comprehensive PDF reports with all your data. Your privacy comes first – all data is stored locally on your device with no account or signup required, and no personal health data is ever sent to external servers. Stay consistent with optional daily reminders and motivational notifications to keep you on track. Download Bobofit today and take control of your weight tracking – privately, simply, and beautifully.
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.