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.
Bend is the simple, affordable way to make stretching & movement a part of your daily routine
Free · 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 Bend: Stretching & Flexibility: 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.
Bend is the simple, affordable way to make stretching & movement a part of your daily routine. With over 15 million users, our quick & convenient routines help improve your flexibility and maintain your natural range of motion as you get older. We offer hundreds of exercises and easy-to-follow routines designed for all ages and experience levels. It's never too early to start stretching everyday! “It’s like having a personal stretching coach in my pocket.” — The New York Times “I could never stick to my stretching routine. Then I found this app.” — Wirecutter STRETCHING IS IMPORTANT A simple, daily stretching routine can have a huge impact on your quality of life. Every time you stretch, you invest in your long-term health and longevity. Stretching benefits include: ⊕ Increase flexibility & mobility in your muscles and joints ⊕ Prevent and relieve pain in your lower back, neck, hips, shoulders and more ⊕ Reduce the risk of injury during outdoor activities and sports ⊕ Improve sleep quality and energy throughout the day ⊕ Improve posture and strengthen your core ⊕ Reduce stress & anxiety ⊕ Improve athletic performance ⊕ Improve circulation and blood flow ⊕ Accelerate muscle recovery ⊕ Improve balance & coordination ⊕ And more! YOUR BODY'S FAVORITE APP Bend offers dozens of daily stretching & mobility routines for every occasion. ⊕ “Wake Up” Designed to maintain your body’s natural mobility and range of motion. Simple, quick, convenient, and effective, you can do it anytime, anywhere, everyday. ⊕ “Posture Reset” Specifically designed to improve your posture with seated stretches that can correct habitual posture problems by increasing flexibility in the shoulders, back, and neck. ⊕ “Full Body” Focused on improving overall flexibility, with more than 20 stretching exercises and poses that target key muscles and joints throughout your entire body. ⊕ “Sleep” Gentle, long-hold stretches designed to help you unwind and de-stress after a long day at work through better quality of sleep, which is made possible by relieving muscle tension and relaxing the body. ⊕ “Expert” Advance group of stretching exercises and yoga poses that cover all major muscle groups and extremities. Flexibility and range of motion can be improved significantly with their more complex movements. ⊕ "Hips" Open and unlock tight hips with deep, focused stretches designed to improve hip flexibility and undo hours of inactivity from sitting at a desk, in a car, or on the couch. ⊕ "Hamstrings" Improve hamstring flexibility with subtle stretches designed to reduce hamstring tightness and relieve pressure on the knees, pelvis, and lower back. ⊕ "Lower Back" Reduce and prevent lower back pain with gentle stretches designed to increase flexibility in the lower back, pelvis, and hip flexors. ⊕ "Isometric" isometric exercise routines that build muscle, strength, balance, and range of motion in targeted areas through static muscle contraction. ⊕ And more! CREATE YOUR OWN Create your own custom stretching routine suited to your specific needs. Choose from hundreds of stretches, yoga poses, and isometric exercises in our library. EASY-TO-USE Bend makes stretching simple. We use custom illustrations and a timer to guide you through each routine. Every stretch has detailed instructions, information about its benefits, and specific things to be cautious about! STREAKS & ANALYTICS Our dashboard displays your streaks and analytics to track your progress and you can set reminders to help motivate you to stretch every day. Check your Bendometer as a quick way to see how consistent you’ve been stretching over the last few weeks. APPLE HEALTH Bend integrates with the Health app, giving users the option to sync health information and activity with Apple Health. FEEDBACK & SUPPORT If you have any questions, feedback, or suggestions, feel free to contact us at [email protected]! LEGAL Terms of Use: https://bend.com/terms Privacy Policy: https://bend.com/privacy
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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 stretches and routines
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: No personalized recommendations
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: In-app purchase limitations after initial free content
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Lack of social features
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.