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.
Break free from nail biting with Nailwell - the science-based recovery app using proven Habit Reversal Training (HRT) techniques
$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 Quit Nail Biting - Nailwell: 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: User engagement drops after initial use
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Limited customization options for tracking
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 data export 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.
Break free from nail biting with Nailwell - the science-based recovery app using proven Habit Reversal Training (HRT) techniques. WHY NAILWELL WORKS Unlike generic habit trackers, Nailwell specifically targets nail biting (onychophagia) and related BFRBs using evidence-based behavioral therapy methods developed by psychologists. PHOTO PROGRESS TRACKING • Before/after photo comparison with overlay guides • Visual timeline of your nail recovery journey • Private, on-device storage - your photos never leave your phone • See real transformation to stay motivated 12-WEEK HRT PROGRAM • Week-by-week structured lessons based on clinical research • Learn awareness training to catch urges early • Master competing response techniques • Build long-term maintenance strategies • Voice-guided urge surfing exercises GAMIFICATION THAT MOTIVATES • Level up as you progress (XP system) • Unlock achievement badges for milestones • Daily streak counter to build consistency • 30, 60, and 90-day challenges • Visual statistics and analytics dashboard UNDERSTAND YOUR PATTERNS • Trigger identification journal • Mood and anxiety tracker • Time-of-day pattern recognition • Stress level monitoring • Personalized insights from your data MONEY SAVED TRACKER • Calculate savings from not needing nail treatments • Track money saved from reduced infections/damage • Visual savings goal progress • Motivating financial milestones URGE MANAGEMENT TOOLS • Voice-guided breathing exercises • 5-minute urge surfing sessions • Tactile alternatives with haptic feedback • Quick-access coping strategies • Emergency urge button for tough moments EDUCATIONAL LIBRARY • Understanding BFRBs and nail biting psychology • Nail care and recovery tips • Stress management techniques • Building replacement habits • Success stories and motivation YOUR PRIVACY MATTERS • 100% offline - works without internet • No account required • No ads or tracking • All data stored locally on your device • No social features by design PREMIUM iOS EXPERIENCE • Native haptic feedback for key interactions • Smooth animations and transitions • Dark mode support • Regular updates and improvements WHO THIS APP IS FOR: • Chronic nail biters ready to quit • Parents helping children stop nail biting • Anyone with nail picking or cuticle biting habits • People seeking better nail health and appearance • Those who've tried and failed with willpower alone BASED ON PROVEN SCIENCE: Nailwell uses Habit Reversal Training (HRT), a form of Cognitive Behavioral Therapy (CBT) with 80%+ success rates in clinical studies for body-focused repetitive behaviors. Start your transformation today. Beautiful, healthy nails are 90 days away. Note: This app provides self-help tools based on established therapeutic techniques. It is not a replacement for professional medical or psychological treatment. If you have severe symptoms or concerns, please consult a healthcare provider.
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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.