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.
App Overview
Race Tech
Every month RACE TECH is hot off the press with all the latest news, stories, new products and general development in the world of motorsport technology and industry.
$6.99 · In-app purchases
PRICE
$6.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
★ 1.0
1 ratings · Below Average
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.
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Build Kit
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A product spec, screen plans, and build steps for your coding agent.
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What's included19 files
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
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Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Screen plan
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.
Differentiate and validate
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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Free quick prompt For a smaller starting point
Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for Race Tech: map the core Books workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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Opportunities
AI-GENERATED OPPORTUNITY HYPOTHESES
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
Offer a broader range of titles and categories.
Assumption to check: Limited book selection compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Focus on optimizing app speed and stability.
Assumption to check: Poor user reviews on app performance
Validate with people who use this workflow before building.
Hypothesis 3
Introduce features for users to share and recommend books.
Assumption to check: Lack of social features for sharing books
Validate with people who use this workflow before building.
Hypothesis 4
Implement a subscription model with tiered pricing to attract more users.
Assumption to check: High price point for a single app
Validate with people who use this workflow before building.
App evidence
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
App Store description
Every month RACE TECH is hot off the press with all the latest news, stories, new products and general development in the world of motorsport technology and industry. An international publication read by the top executives, engineers, drivers, team owners and suppliers in the motorsport industry, RACE TECH magazine is the only independent, technology led motorsport magazine that focuses on every aspect of motorsport engineering. Totally international in its outlook, it covers everything that can be found competing on the track from Formula One to Clubman’s single-seaters, from Le Mans Prototypes to the low-cost GT racers and from 750Formula racecars and weekend hillclimb specials. Topics covered include Engine Components, Aerodynamics, Bearings, Brake Technology, CADCAM, CFD and simulation software, Coatings, Composites, Connectors, Cooling Systems, Control Systems, Data Acquisition, Drivetrain, Chassis and Transmission Dynos, Gearboxes, Hoses, Hybrid Systems, Electronics,Fabrication, Fluid Systems, Gauges and Instrument Panels, Ignition Systems, Lubricants, Machine Tools, Materials, Powertrain, Radiators, Safety Equipment, Simulation, Suspension Systems, Testing, Track equipment, Transmissions, Turbochargers, Tyres, Water Pumps and Wind Tunnels. If you want to reach those parts of the industry that no other publication can, then look no further than RACE TECH. Download your RACE TECH APP NOW! It’s quicker, easier and cheaper! *Back issues and future issues are available for purchase within the App. Future issues are also available through the following auto-renewing subscription(s): -1 Year £34.99 - Bernoulli Single Issue - £9.99 Payment will be charged to your iTunes Account at confirmation of purchase. This subscription will automatically renew unless auto-renew is turned off at least 24-hours before the end of the current period, your account will be charged for renewal within 24-hours prior to the end of the current period. The cost of the renewal will match the initial subscription price. You may turn off auto-renewing subscriptions by going to your user’s Account Settings after purchase. No cancellation of the current subscription is allowed during your active subscription period. Please find our Terms and Conditions and Privacy Policy here: http://www.pagesuite.com/media/documents/terms_of_use.aspx
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Screenshots
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Build scope
Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Define the first version
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Set boundaries
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Check the hard parts
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
SUGGESTED BUILD STACK
React Native
Expo
Supabase
React Navigation
Zustand
React Native Paper
BUILD KIT DIFFICULTY
Intermediate
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.
