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
FORScan Lite - for Ford, Mazda
FORScan Lite application was developed specially for a computer diagnostics of Ford, Mazda, Lincoln and Mercury vehicles
$6.99 · In-app purchases
OVERALL US RANK
#91
Paid · all categories
REVENUE (Est)
$41K/mo
$22K - $59K
RATING
★ 3.0
196 ratings · Below Average
Evidence scope: #91 is the current overall US Paid chart position. 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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Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for FORScan Lite - for Ford, Mazda: 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 vehicle compatibility to include more brands.
Assumption to check: Limited compatibility with non-Ford/Mazda vehicles
Validate with people who use this workflow before building.
Hypothesis 2
Implement better error handling and stability improvements.
Assumption to check: Occasional crashes during scans
Validate with people who use this workflow before building.
Hypothesis 3
Redesign UI for a more modern look and feel.
Assumption to check: User interface feels outdated
Validate with people who use this workflow before building.
Hypothesis 4
Simplify navigation and improve user onboarding.
Assumption to check: Confusing navigation structure
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
FORScan Lite application was developed specially for a computer diagnostics of Ford, Mazda, Lincoln and Mercury vehicles. Supported adapters: - OBDLink MX+ (recommended) - vLinker FS Bluetooth (recommended) - vLinker FD BLE (recommended) - other ELM327-compatible WiFi or BLE adapter (not recommended). Attention: this application may not work properly in case of bad quality ELM327 adapter used! Supported cars: - Ford, Lincoln, Mercury models of 1996 - 2022MY (some models of 1994-1995MY are also supported) - Mazda 1996-2022MY. Attention: Mazda 7G models (new Mazda 3, CX-30, MX-30, CX-50 etc) are supported partially or not supported! - Vehicles other than Ford, Mazda, Lincoln, Mercury are not supported! Features: - Analyzing an on-board network configuration of the connected vehicle - Read and reset DTC for all modules - Read sensors and other data (PIDs) from all modules - Execute tests - Execute majority of service functions Note: Configuration and Programming functions, as well as some of service functions, are not available in FORScan Lite.
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 Navigation
Zustand
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Axios
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React Native Vector Icons
BUILD KIT DIFFICULTY
Advanced
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.
