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.
This app will push the limits of your high jump performance by providing comprehensive insights into your explosive power, takeoff forces, and overall efficiency
$0.99 · 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 High Jump Analyzer: map the core Sports 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: Lack of user engagement features
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Limited data visualization
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Inconsistent performance on video uploads
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: No personalized coaching tips
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.
This app will push the limits of your high jump performance by providing comprehensive insights into your explosive power, takeoff forces, and overall efficiency. Each jump is analyzed using advanced physics principles to measure takeoff power in watts, vertical velocity, kinetic energy… ensuring you have the data necessary to optimize your technique and achieve peak performance. The app works best when your camera (or phone) is held wide and it is held still. The jumper should be allowed to move through the frame as they run, plant, takeoff and move toward the camera as they finish their jump. After you save you video with your camera or camera app, you load it from your photos. Press the markers button to set the bar, pit and takeoff. Then the set up button to input basic info, and finally the analyze button. After you save the analysis, it can be found in the app's history tab (top left), and it can be copied from there. Our Performance Scoring System delivers an unprecedented overview of your jumping mechanics, awarding scores up to 100 points across critical phases such as approach, plant, takeoff, and flight. With detailed breakdowns, you can see exactly where your strengths lie and where improvement is needed. Tailor your training using automated recommendations based on your performance, ensuring you focus on areas that will yield the greatest results—whether it’s enhancing your speed, refining your technique, or boosting your explosive power. This high jump video analysis app provides advanced biomechanics analysis, physics-based metrics, performance scoring, drill recommendations and targeted exercises suited to your improvement priorities... that can make your training sessions more efficient and effective. The app's intuitive interface, paired with a color-coded scoring system, ensures clarity in analysis and facilitates constructive communication with your coaches. Whether you're a developing athlete or competing at the elite level, this revolutionary app is your ultimate training partner, designed to maximize your potential and elevate your high jump performance to new heights. Metrics Analyzed: Takeoff Power (Watts): Measures explosive power output during takeoff using work-energy principles Takeoff Force (Newtons): Calculates force production during ground contact phase Vertical Velocity (m/s): Measures upward velocity at takeoff Horizontal Velocity (m/s): Measures approach velocity at takeoff Kinetic Energy (Joules): Total kinetic energy at takeoff Momentum (kg·m/s): Momentum of the athlete at takeoff Efficiency (%): Ratio of vertical to total velocity, measuring energy conversion efficiency This makes the app a video analysis tool with a comprehensive biomechanics assessment system. The physics-based metrics, performance scoring, and comparative analysis provides athletes and coaches with actionable insights for improving high jump performance. The scoring system gives clear, measurable goals, while the drill recommendations provide specific training guidance. The elite comparison helps athletes understand where they stand relative to world-class standards and what it takes to reach that level. The app will attempt to analyze and report the following: PERFORMANCE METRICS Approach Speed Distance from Bar Ground Contact Time Lean at plant Takeoff Angle Vertical Lift Peak Height TECHNIQUE ANALYSIS Knee Drive: Moderate drive Arm Drive: Arms held close ROTATION ANALYSIS Total Rotation Rotation Rate Angle at Peak Rotation Quality BIOMECHANICS Hip Angle at Takeoff Knee Angle at Takeoff Ankle Angle at Takeoff Center of Mass Trajectory PHYSICS & POWER Overall Score Takeoff Power Takeoff Force Vertical Velocity Horizontal Velocity Efficiency PERFORMANCE BREAKDOWN Approach Plant Lean Takeoff Flight Bar Clearance As well as: IMPROVEMENT PRIORITIES RECOMMENDED DRILLS
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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.