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.
Valens - Your Comprehensive Health Widgets
$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 Valens - Widgets for Health: 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 customization options for widgets
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Lack of social features for sharing progress
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Subscription model may confuse users
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.
Valens - Your Comprehensive Health Widgets Transform your home screen and lock screen into a comprehensive health dashboard with Valens, the ultimate health widgets app. Access a vast array of health categories, empowering you to track and monitor various aspects of your well-being with ease. ⌗ Your Privacy is Protected Rest assured that all data is processed locally on your device. Nothing leaves your device, and your privacy is safeguarded. ⌗ Customizable Health Widgets Tailor your health widgets to suit your preferences. Choose from a vast selection of categories, including weight, heart rate, sleep, nutrition, exercise, and more. Full categories include: [Body Measurements]: Weight, Body Fat Percentage, Body Mass Index, Lean Body Mass, Wrist Temperature, Body Temperature, Basal Body Temperature, Height, Electrodermal Activity, Waist Circumference [Activity]: Steps, Resting Energy, Active Energy, Walking + Running Distance, Exercise Minutes, Stand Minutes, Stand Hours, Running Speed, Swimming Distance, Swimming Strokes, Flights Climbed, Cycling Distance, Wheelchair Pushes, Wheelchair Distance, Downhill Snow Sports Distance, Underwater Depth [Mobility]: Walking Speed, Walking Step Length, Walking Asymmetry, Double Support Time [Heart]: Heart Rate, Heart Rate Variability, Walking Heart Rate Average, Resting Heart Rate, Peripheral Perfusion Index, Cardio Fitness, Blood Pressure, Blood Glucose [Mental Wellbeing]: Sleep, Mindful Minutes [Nutrition]: Water, Carbohydrates, Caffeine, Calcium, Dietary Sugar, Dietary Energy, Total Fat, Biotin, Chloride, Chromium, Copper, Dietary Cholesterol, Fiber, Folate, Iodine, Iron, Manganese, Molubdenum, Niacin, Pantothenic Acid, Phosphorus, Potassium, Saturated Fat, Monounsaturated Fat, Polyunsaturated Fat, Zinc, Protein, Selenium, Sodium, Thiamin, Vitamin A, Vitamin B6, Vitamin B12, Vitamin C, Vitamin D, Vitamin E, Vitamin K [Other]: Alcohol Consumption, Blood Alcohol Content, Time In Daylight, Number of Times Fallen ⌗ Versatile Layout Styles Explore diverse layout styles, from small to medium-sized widgets, to create the perfect combination for your home screen and lock screen. Find the ideal arrangement that best suits your health tracking needs. ⌗ Support iOS 17 Standby Fully supports iOS 17 StandBy, providing a seamless and enhanced experience for users. Enjoy personalized and glanceable information on your iPhone's screen while it charges. ⌗ Support for Widgets on Lock Screen Stay informed even when your device is locked. View your essential health data on the lock screen for easy access at any time. ⌗ Seamless HealthKit Integration Valens seamlessly integrates with HealthKit, granting access to crucial information about your movement, weight, sleep, heart rate, and more. Consent to the app upon launch to enable this powerful health data integration. ⌗ Customize with Different Date Ranges and Colors Tailor your widget data to your preference. Choose from various date ranges and color schemes to create personalized health insights that resonate with you. All configurations can be easily done from the widget settings, eliminating the need to go to the app. ⌗ Track Trends with Charts and Date Ranges The Home Screen widget provides comprehensive trends over specified date ranges, including daily, weekly, or monthly progress. Choose from various chart types, customize colors, and display units for a truly personalized health monitoring experience. Don't miss the chance to elevate your health tracking experience with Valens. Download now and take charge of your well-being like never before.
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.