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.
OnMiles records your drives automatically and helps you keep an organized mileage, expense and trip history on your iPhone
$9.99
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.
Your first Build Kit is free with a verified email.
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 OnMiles Mileage Tracker: 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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Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
OnMiles records your drives automatically and helps you keep an organized mileage, expense and trip history on your iPhone. Built for people who drive for work: rideshare and delivery drivers, freelancers, real-estate agents, home-health workers, mobile service professionals and small-business owners who drive to clients. AUTOMATIC TRIP TRACKING • Starts recording on its own when you drive and stops when you park, even with the screen off. • Every trip keeps its route on the map, stops with address and time, distance, duration and speeds. • Mark trips Work or Personal before you drive, or change them with one tap later. • A "Trip recorded" notification shows the miles, time and route when each trip ends. You can switch to a daily summary or turn it off. SMART TRIPS, ON YOUR IPHONE • OnMiles learns the places you drive to regularly and can classify those trips as Work or Personal. • Name your places, such as Home, Office or a client, and reuse business purposes with one tap. • Everything is learned on your iPhone. Nothing is sent to a server. MILEAGE AND BUSINESS REPORTS • Detailed and Summary reports by day, month, year or custom period. • Work vs. Personal split, business purpose notes, route details, stops and totals. • Export to PDF or CSV and share reports with your accountant, bookkeeper, employer or client. INCOME AND EXPENSE ORGANIZATION • Track income, parking, tolls and other business expenses. • Scan receipts: the total, date and merchant are read on your iPhone. • Import bank and card statements without giving anyone your bank login. • Review recognized transactions before saving them. • Compare mileage-based vehicle reporting with actual vehicle expenses for planning. • Export income, expenses, mileage and trip records when you need them. PRIVATE BY DESIGN • No account and no ads. • Your trips, places and finances are stored on your iPhone. • You can create an encrypted backup file and store it wherever you choose. WHAT ONMILES NEEDS • Location "Always", so trips can be recorded while the app is in the background. • Motion & Fitness access is optional and helps detect driving sooner. • Background location use can reduce battery life. OnMiles only records while you drive. OnMiles organizes your records and reports for planning. It does not provide tax, legal or accounting advice.
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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: Limited reporting features compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: User interface can be confusing for first-time users
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: No backup for mileage data
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: Lack of customization options for trip entries
Validate with people who use this workflow before building.
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.
Not assessed in a Build Kit yet.
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.