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
Easy Business Mileage Logger
Easy Mileage Expense Logger
$0.99 · In-app purchases
PRICE
$0.99
In-app purchases
BUSINESS MODEL
Paid
No overall Grossing estimate available
RATING
N/A
No ratings yet
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 included15 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 Easy Business Mileage Logger: map the core Business 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
Include filtering options for viewing business vs personal trips
Assumption to check: Difficulty in tracking business and personal trips separately
Validate with people who use this workflow before building.
Hypothesis 2
Add visual reports and summaries based on logged mileage
Assumption to check: Limited reporting features for mileage
Validate with people who use this workflow before building.
Hypothesis 3
Integrate with Google Maps for automatic location filling
Assumption to check: Lack of integration with navigation apps
Validate with people who use this workflow before building.
Hypothesis 4
Implement reminders or notifications for users to log trips regularly
Assumption to check: No reminders for logging trips
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
Easy Mileage Expense Logger Track your mileage effortlessly with Easy Mileage Expense Logger! This user-friendly app is designed to help you keep an accurate record of your travel mileage for business or personal purposes. Simplify your logging process and ensure you never miss a deduction or reimbursement opportunity. Key Features: - Quick Mileage Entry: Easily record your trips with details such as date, start location, end location, mileage, and description. - Instant Calculations: Automatically calculates the mileage claim amount based on your set cost per mile. - PDF and CSV Export: Convert your mileage logs to PDF or CSV formats for easy sharing and reporting. - User-Friendly Interface: Enjoy a clean, intuitive design that makes tracking your mileage simple and efficient. - Save Time: Quickly input and access your mileage data without the hassle of complex spreadsheets. - Maximize Deductions: Ensure you never miss out on potential deductions by keeping accurate mileage records. - Simplify Reporting: Easily generate reports in PDF or CSV format for tax filing or reimbursement purposes. Ideal For: - Freelancers and contractors - Small business owners Sales professionals - Anyone who needs to track their mileage for reimbursement or tax purposes Download Easy Mileage Expense Logger today and take control of your mileage tracking
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
Supabase
react-navigation
react-hook-form
@supabase/supabase-js
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.
