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.
Happy Bending: Stretching flexibility
$0.99
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 Happy Bending: 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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Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Happy Bending: Stretching flexibility Transform your body and mind with personalized stretching and mobility routines that fit seamlessly into your daily life. Happy Bending empowers you to create custom zen-like exercise sequences that combat stiffness, prevent injury, and restore your natural flexibility. Perfect for office workers trapped in sedentary lifestyles, Happy Bending breaks the cycle of chronic tension and poor posture that comes from hours of desk work. Our easy-to-use timer system guides you through each stretch and movement, ensuring you get maximum benefit without the guesswork. Whether you need a gentle morning routine to awaken your body, a midday reset to counteract sitting fatigue, or a restorative post-workout session to enhance recovery, Happy Bending adapts to your needs. Create peaceful stretching experiences that not only improve your physical flexibility but also provide mental relaxation and stress relief. Beyond stretching, Happy Bending supports your entire fitness journey. Use it for high-intensity Tabata sessions when you want to push your limits, or design circuit training routines that keep your workouts varied and engaging. The versatile timer system works for any exercise format you choose. Key Benefits: Prevent injuries by maintaining healthy range of motion and muscle balance Reverse damage from prolonged sitting and sedentary work habits Improve posture and reduce chronic pain from desk-bound lifestyles Enhance athletic performance and accelerate post-workout recovery Reduce muscle tension and joint stiffness throughout your body Create mindful moments that reduce stress and promote wellbeing Build flexibility progressively toward advanced goals like splits Support any workout style from gentle stretching to intense intervals The intuitive interface makes routine creation effortless. Simply select your exercises, set your timing preferences, and let Happy Bending guide you through each session with precision timing. Focus on your movement and breathing while the app handles the rest. Take control of your flexibility and overall wellness. Start your journey toward a happier, more limber body today.
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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: Lack of user engagement features like community interaction
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Limited customization options for workout plans
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: No progress sharing options
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Basic analytics on user performance
Validate with people who use this workflow before building.
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.