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.
whether you are trying to lose weight, gain muscle mass, rounder buttocks or want to get 6-pack abs – our fitness app offers full body workout plans with many 3d workout exercises for free
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 Fitness App: Gym Workout Plan: 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 and personalization options
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Nutritional tracking can be cumbersome
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Inadequate user engagement features
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Difficulties with subscription management
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.
whether you are trying to lose weight, gain muscle mass, rounder buttocks or want to get 6-pack abs – our fitness app offers full body workout plans with many 3d workout exercises for free. here you will find ready workouts with champions’ diets. you can choose from a variety of exercise plans for muscle groups, such as chest workout or arm workout, or for a certain goal, such as fat burning workout. you can also choose between workout for women, workout for men and get ready workouts with diet. this fitness application beats other fitness apps, because you can keep your personal workout diary and find the best personal coach from any city for online fitness workouts and bodybuilding sessions. share your progress, ask questions about workouts, exercises and diet – you will get competent answers. together you can keep fit at home! main advantages of fitness online: - ready workouts with a diet plan created by bodybuilding champions who act as coaches. - workout diary: record your progress with our workout tracker, diet tracker and fitness tracker! - in-app encyclopaedia: learn more about exercises and diet. - over 850 exercises with high-quality 3d animations. - diet plan: over 5000 food products with nutrition facts, calorie counter and food tracker. - sports nutrition: essential additives to your diet for fast muscle building (gain weight). - personal feed: share workouts, ask questions, meet other users of our community. - direct message our coaches using the in-app chat. send tips to your friends on how to lose weight, get perfect abs, workout arms and chest, maintain a healthy diet or get a rounder butt through the best buttock exercises. how does it work? as a fitness user you can work out by developing your own weight loss program from the exercise library, use our calorie tracker and nutrition guide to create a diet plan and start working out. you can track results in the workout diary. or choose a ready training program with a diet for your goal, like lifting weights workout, fat loss workout, etc. you want more? hire and work out online with a personal coach. choose your personal trainer by budget and feedback, contact them and set sports goals. get an invoice, pay with your bank card and start your exercises. your coach will give you a workout plan with individual diet instructions, create a monthly course with a full set of exercises and meal plan to reach your goal, whether that is to get a bigger butt, lose weight, lose belly fat, build muscles, get six-pack abs, get a shredded body, get big arms or a wide chest or get fit after a pregnancy – all with fitness at home. with a monthly course, such as a weight loss program, your coach will monitor your results for a monthly fee, give advice on your form or meal plan and adjust the exercise program if needed. we only invite the best fitness coaches to fitness online with knowledge on all working out goals, like trying to get a rounder butt at home, lose weight fast, get six-pack abs, get big arms, get a wide back, build muscles or just define your body. subscription details: • payment will be charged to itunes account at confirmation of purchase. • subscription is automatically renewed unless auto-renew is turned off at least 24 hours before the end of the current period. • account will be charged for renewal within 24-hours prior to the end of the current period. • subscription can be managed and auto-renewal turned off in the user's account settings. • any unused time of a free trial period will be forfeited when the user purchases a subscription. • user agreement: https://fitnessonline.app/terms_of_use.html • privacy policy: https://fitnessonline.app/privacypolicy.html we use healthkit to export physical activities to the health app, as well as read heart rate and biometrics. having technical issues? contact us, tell us your account name and describe your problem at: [email protected]
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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.