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.
Breathing is a skill
$4.99 · 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 FlöBreath: 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 variety of exercises available
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: No customization options for users
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Lack of social features
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: No feedback mechanism for exercises
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.
Breathing is a skill. FlöBreath helps you train it. The first time you try a 4-7-8 pattern, your inhale might run out too early. Your exhale might feel forced. The hold might feel like forever. That's normal -- and it's exactly why FlöBreath exists. Gentle haptic taps on your Apple Watch guide each phase of every breath. No counting in your head, no watching a screen. Just close your eyes, follow the rhythm through touch, and focus on fitting your breath to the pattern. Session by session, your body learns. Inhales start right on cue. Exhales fill the full window. Holds become comfortable. What felt awkward at first becomes second nature. This is what makes FlöBreath different from a simple timer: it's a coach on your wrist, training you through feel. The haptics free your eyes and your mind so your body can do the learning. Patterns for every moment: - 4-7-8 Sleep -- the classic bedtime wind-down - Box Breathing -- steady focus and reset - Coherent Breathing -- HRV optimization at resonance frequency - Physiological Sigh -- quick stress relief in two breaths - 4-6 / 4-7 / 4-8 Calm -- progressive relaxation, building toward longer exhales FlöBreath learns your time of day, HRV, sleep quality, and activity level to suggest the right pattern for right now. See your body respond. After each session, a heart rate sparkline shows how your HR shifted -- real feedback on what's working. Over time, FlöBreath tracks which patterns calm you most and surfaces insights after 10+ sessions. Features: - 7 breathing patterns from box breathing to HRV resonance - Haptic-only mode -- close your eyes, guided by touch alone - Bedtime mode -- auto-enables haptic-only after 9 PM - Smart recommendations based on time of day, HRV, and activity - Post-session heart rate analysis with sparkline visualization - Breath Garden -- watch your weekly practice grow - Pattern effectiveness insights after 10+ sessions - Wind-down reminder for evening breathing habits - Companion iPhone app with monthly practice calendar - Background session support -- works with wrist down - Battery-optimized design - No account required, no servers, we never see your data FlöBreath reads heart rate and HRV data through Apple HealthKit. Your data stays on your devices. FlöBreath is a breathing exercise tool, not a medical device. It does not diagnose, treat, or prevent any medical condition. Heart rate data is provided by Apple Watch sensors for informational purposes. $4.99 once -- yours forever. No subscription. No account. Just a better way to breathe.
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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.