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.
The Swing Sensei analyzes your golf swing using AI — right on your iPhone
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 The Swing Sensei: 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: Limited feedback on swing analysis
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: In-app purchases can be confusing
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: User interface can feel cluttered
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Slow video uploads for large files
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.
The Swing Sensei analyzes your golf swing using AI — right on your iPhone. No expensive lessons, no wearable sensors. Just import a down-the-line swing video and get instant, detailed feedback. HOW IT WORKS 1. Import a swing video from your camera roll 2. Trim to a single swing and select your club 3. Get AI-powered feedback on 12 key checkpoints WHAT WE ANALYZE • Address: Hip hinge, knee bend, and arm hang • Takeaway: Club path relative to the swing plane • Mid-Backswing: Shaft angle at lead-arm parallel • Top: Posture maintenance, lead knee flex, hand depth • Mid-Downswing: Shaft angle returning to the slot • Impact: Posture and head stability through the ball YOUR SENSEI SCORE Every swing gets a score out of 10 based on all 12 checks. Track your scores over time and see exactly where you're improving — and where you need work. PERSONALIZED COACHING (Premium) • Focus Areas: Your top 3 weak spots analyzed across your last 10 swings • Trend Charts: Per-check line charts showing your improvement over time • Cause & Effect: Not just "what's wrong" but why it matters and how to fix it • Goal Setting: Pick a check to improve, track your streak, celebrate milestones • Practice Sessions: Structured warm-up, personalized drills with step-by-step guides, and cool-down routines • Step-by-Step Drills: Detailed instructions for every drill — like having a coach in your pocket PRIVACY FIRST All analysis happens on your device. Your videos never leave your phone. No account required. No data collected. PRICING • Free: 3 swing analyses per month • Monthly: $7.99/month — unlimited analyses + full coaching • Annual: $39.99/year — best value (save 58%) • Lifetime: $69.99 — one-time purchase, yours forever Whether you're a beginner working on fundamentals or a low handicapper fine-tuning your move, The Swing Sensei gives you the feedback you need to improve — every session, every swing. Terms of Service: https://theswingsensei.com/terms.html
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.