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
Tommy's Express
With the Tommy’s Express Car Wash mobile app, you can easily join TommyClub®, gain access to exclusive in-app features, and get notified when there are new offers, site changes, and more
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 3.7
441 ratings · Top 50%
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 included16 files
A product spec, phased build plan, differentiation notes, and screen references.
- START_HERE
- AGENTS
- EVIDENCE
- SPEC
- BUILD_PLAN
- DIFFERENTIATION
- skills/
- screens/
Preview a sample Build Kit No email needed
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 Tommy's Express: map the core Utilities 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
Expand inventory and partnerships with local stores.
Assumption to check: Limited item selection compared to competitors.
Validate with people who use this workflow before building.
Hypothesis 2
Enhance UI design and streamline navigation flow.
Assumption to check: Clunky user interface and navigation.
Validate with people who use this workflow before building.
Hypothesis 3
Implement real-time tracking and notifications for orders.
Assumption to check: Inconsistent delivery times reported by users.
Validate with people who use this workflow before building.
Hypothesis 4
Introduce a recommendation engine based on user preferences.
Assumption to check: Lack of personalized recommendations.
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
With the Tommy’s Express Car Wash mobile app, you can easily join TommyClub®, gain access to exclusive in-app features, and get notified when there are new offers, site changes, and more. Conveniently manage your account and save time by driving through our app lane. Join TommyClub® Whether an unlimited or PayPerWash membership is more your style, join TommyClub® and take advantage of our app lane. Sign up from your mobile device and start washing today. Earn unlimited credits Enjoy $15 off your next in-app charge for each friend or family member that signs up for TommyClub®. Manage your account Need to edit your wash plan or add a new vehicle? You can now easily manage your account and payment information in the app. Find a Tommy’s Express Car Wash near you Use the map to view 200+ Tommy’s Express Car Wash locations, find operating hours, and see other related information. Get live support Need assistance? Speak with a member from our guest services team and get answers to your questions through the chat feature. Control your vacuum Enhance your visit with our self-service vacuum bays. With the mobile app, you can turn your vacuum on and off for a quick and easy clean. Redeem coupons and gift cards Unlock discounts on washes through the mobile app when you redeem gift cards and coupons. Receive location updates Download the app to get notified about events, wash closures, hour changes, and more.
Written user reviews are not shown here. Check current App Store reviews >
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
Axios
React Navigation
React Query
TypeScript
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.
