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.
Meet your professional tool for breathing exercises and meditation!
$1.99 · 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 Box Breathe: 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 free content and features
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Lack of customization options for breathing sessions
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: No social sharing features
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: In-app purchase confusion
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.
Meet your professional tool for breathing exercises and meditation! Since its launch, Box Breathe has become a trusted companion for thousands of people who practice meditation and yogic breathing, as well as those who struggle with panic attacks and insomnia or just look for a simple tool to help them relax through breathing. Athletes use Box Breathe to control and calm breath both during and after intense workouts, running or swimming. With simple and intuitive design at its core, Box Breathe offers a highly customizable set of features to satisfy your goals: - choose between “classic” Box mode with equal durations of breathing phases and “free-form” mode in which you can specify individual duration for each phase - program your breathing session with a convenient timer by setting either a number of breathing cycles or an overall duration - adjust duration of breathing phases with simple swipes before or during a session - plan your weekly breathing sessions and set reminders - save your breathing patterns and quickly access them from a context menu on main screen - mark each breathing phase with a Siri voice guide or a different sound and custom designed haptic feedback (custom haptics are supported on iPhone 8 and later models running iOS 13) - set haptic response for every second of your breathing session (not supported on devices prior to iPhone 6s) - built-in metronome helps you count every second of your breathing session - track your progress with detailed overall, yearly, monthly, weekly and daily stats - with iOS 13, choose between white and orange themes for Dark Mode - Apple Health integration - independent app for Apple Watch with even greater functionality - on Apple Watch, follow your heart rate as you breathe - Apple Watch app works in background, tapping your wrist to mark each following breathing step - Apple Watch app offers different haptics for inhale and exhale phases, as well as a light haptic marking each second of your session. Fast life pace requires an efficient tool for stress relief, and in most cases a simple breathing session is all it takes. No matter where you are - in a gym, office, at home or stuck in a traffic jam - Box Breathe app will help you calm in a matter of seconds. _______________________ Our preview images were created using 'Previewed' at previewed.app. Drum and Lyre icons by Icons8.
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.