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.
Lose weight and get fit anytime, anywhere with free exercise videos and personalized workout plans
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.
Kit ready. Verify your email to download it.
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 FitOn Workouts & Fitness Plans: 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 workout variety compared to competitors.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Subscription pricing may deter users.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: User interface can be overwhelming.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Inadequate social features for community engagement.
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.
Lose weight and get fit anytime, anywhere with free exercise videos and personalized workout plans. Get fit, feel great, and start working out for free today! Stay active, reduce stress, and feel good with unlimited access to free workouts and meditations. Get your sweat on with celebrity trainers and read articles on how to take care of yourself both mentally and physically. Achieve your health and fitness goals with unlimited access to the best workout classes - from cardio to strength training to HIIT, yoga, Pilates, and much more. With FitOn you’re guaranteed to find a class you love. Plus, you’ll get to work out with top celebrity trainers like Cassey Ho (of Blogilates), Jeanette Jenkins, Kenta Seki, Breann Mitchell, Danielle Pascente, Kenny Ferrer, and many more. Plus, EXCLUSIVE workouts led by Gabrielle Union, Julianne Hough, Jonathan Van Ness, and Bob Harper. Also, reduce stress, get better sleep, improve breathing, relax your body and rejuvenate your mind with short and effective meditations. AMAZING WORKOUTS • Quick & effective workouts from celebrity trainers • Exclusive workouts with Gabrielle Union, Julianne Hough & JVN • No gym? No problem. Turn your home into a fitness studio with your phone, laptop or TV • No subscription required, no limits - it’s that simple. PERSONALIZED PROGRAMS • Reach your goals with customized workout plans • Lose weight, build muscle, tone up or reduce stress with plans that work for you WORKOUTS FOR EVERYONE • Enjoy cardio, strength, HIIT, dance, yoga, Pilates, Barre, and more • Browse by workout category, body part, length and intensity • Short on time? We’ve got quick HIIT 10-minute workouts so you can get your workout in fast! • Workout anytime on-demand or join an upcoming class GUIDED MEDITATIONS • Calming meditations to help reduce stress and anxiety • Guidance toward improved breathing • Increased relaxation for better sleep STAY MOTIVATED • Join the live leaderboard for friendly competition • Track your progress and share with friends • See real-time heart rate using Apple Health and Apple Watch • Real-time messaging with friends or workout partners Plus, you can access workouts online from your TV or computer: https://app.fitonapp.com or download our app directly on Apple TV. ------ FITNESS IS ALWAYS FREE Reach your goals even faster and help support free fitness for everyone by upgrading to PRO: • Personalized meal plans • 500+ exclusive recipes • Unlimited offline downloads • Real-time heart rate zones with Fitbit & Garmin • Premium music from top artists • And much more… Subscription Details Fitness is always 100% free - no strings attached. If you choose to subscribe to FitOn PRO for our additional features and to help support our mission you'll be billed annually, charged to your iTunes Account, which will automatically renew unless cancelled at least 24 hours before the end of the current period. Auto-renew can be turned off anytime by going to your Account Settings in iTunes after purchase. No cancellation of the current subscription is allowed during the active subscription period. Apple Health You can optionally choose to sync your workout activity to the Health app to share with other apps or close your rings if you have an Apple Watch. Terms of Use: https://fitonapp.com/terms/ Privacy Policy: https://fitonapp.com/privacy/
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.