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.
CrewChief AI is your AI-powered race setup advisor for dirt track, speedway, and circuit racing
$2.99 · 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 CrewChief Ai: 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 reviews may indicate poor user experience or missing features.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Limited visibility into premium insights might deter users from subscribing.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Users may struggle with navigation if not clearly defined.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Potential lack of data analysis tools could limit athlete 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.
CrewChief AI is your AI-powered race setup advisor for dirt track, speedway, and circuit racing. Built for drivers, from SSA Junior seadan new stars and top stars late models, modifieds, and open-wheel divisions. Describe how your car handles on track and your AI Crew Chief delivers targeted chassis tuning recommendations instantly — like having an experienced race engineer in your pit box. AI CREW CHIEF ADVISOR Tell it the car is tight on entry, loose off the corner, or bouncing in the ruts. The AI analyses your full setup — springs, shocks, tyre pressures, ride heights, gear ratio — and gives you specific changes to try. Powered by Google Gemini AI. PREDICTIVE LAP TIME ANALYTICS See projected lap time gains before turning a single bolt. Visual charts compare your current setup vs optimal PSI calibration across all four corners, with a confidence score on every recommendation. COMPLETE SETUP SHEETS Record every detail for all four corners — tyre pressure (PSI), spring rate, shock settings, ride height — plus gear ratio, tow out, track grip level, conditions, and driver feedback. One place for everything your crew needs on race night. GARAGE MANAGER & CHECKLISTS Never forget critical race prep. Track pre-race checks, shed jobs, parts needed, and tools. Tick items off as you go — know your car is 100% ready before it hits the track. PRINT-READY PIT SHEETS Generate professional, formatted setup sheets you can print and take trackside. Perfect for comparing setups across events and building a season-long data library. SETUP HISTORY & SEARCH Save unlimited setups. Search by track name, driver, or event. Compare what worked at each venue. Build your own racing database over time. AUSTRALIAN SPEEDWAY TRACKS Pre-loaded with major Australian dirt tracks including Northline Speedway, Murray Bridge, Premier Speedway, Avalon Raceway, and more. Add any custom track worldwide. WORKS OFFLINE All data stored locally on your device. Works without internet at the track. Your setups are always available — even in the middle of nowhere. BUILT FOR REAL RACERS Whether you run a full championship season or weekend warrior racing — sprint cars, junior sedans, super sedans, street stocks, modifieds, late models, or open-wheel — CrewChief AI keeps your setups organised, your garage ready, and your crew informed. Download now and put an AI race engineer in your pit box.
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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.