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.
Road Trip is the fastest and easiest app for tracking of your car’s fuel economy, maintenance history, and expenses
$6.99 · In-app purchases
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.
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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 Road Trip MPG: map the core Finance workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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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 features for tracking non-fuel expenses
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Manual data entry can be tedious
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Lack of social sharing options
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: No reminders for fuel purchases
Validate with people who use this workflow before building.
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Road Trip is the fastest and easiest app for tracking of your car’s fuel economy, maintenance history, and expenses. Road Trip is a one-time purchase. There are no ads, subscriptions, or recurring fees. Your data is always private. Remember to checkout Road Trip Lite and Road Trip HD for the iPad. _____________________________ "There’s a ton of MPG apps on the App Store but Road Trip is the best because of its amazingly dense summary screen and its best in class fuel entry screen." — Jason D. O'Grady, zdnet.com "The most comprehensive road travel app of them all, Road Trip allows you to track mileage, fuel prices, graph out trip expenses, and even export the data to CSV" — Ben Parr, mashable.com "The part we like the most is the cool graph that shows fuel costs and average mpg over time. And it lets you look at the cost per day to keep those wheels turning." — Car and Driver Magazine _____________________________ Road Trip will… • Track your fuel economy and fuel costs. • Track your maintenance history. • Track and compare your vacations and trip costs. • Remind you when regular maintenance is due. • Prevent expensive premature maintenance. • Show you how much money you spend on your car. FEATURES • Mileage and fuel economy tracking. • Service and repair log, with service reminders. • Expense tracking. • Trip tracking and reporting. • Comprehensive statistics. • Full international support (Metric, US, and Imperial units). • Unlimited number of vehicles. • Full screen, interactive graphs. • Customizable Shortcuts • Home Screen Quick Actions • Siri voice integration COMPREHENSIVE STATISTICS • All key statistics and graphs on a single page. • Cost per day, Cost per km, Moving Average. • Maximum distance per tank. • Monthly and Yearly distance and cost estimates. • Vehicle depreciation statistics. AUTOMATIC BACKUP AND SYNC • Automatically sync between multiple of iOS device using Dropbox or iCloud. • Automatically backup to Dropbox, including CSV files. PRIVACY • Your Road Trip data always remains private. We do not collect data from your iOS device, and we do not have access to the data you store in iCloud or Dropbox. ADVANCED FEATURES • Tripmeter or Odometer distance entry. • Partial fill-ups, Same-day fill-ups, and Missed fill-ups. • Currency Conversion. • Geo-tagging and mapping. • Searching and filtering. • Jerrycan Fuel Tracking. • Trip Cost Calculator. • Distance-To-Empty Calculator. • Tire log, including support for summer and winter tires. • Distance correction for inaccurate odometers. • Monthly and Yearly distance and cost estimates. • Trip Computer Logging (fuel economy, average speed, temperature) • Graphs for comparing MPG vs. Fuel Type, Driving Conditions, Average Speed, and Temperature. • Odometer replacement. • Vehicle purchase price and depreciation tracking. • Import and Export CSV • Electric vehicle tracking (in kW.h) • Home electricity tracking (in kW.h) • Motorboat tracking (in Hours) _____________________________ Lots more information and screen shots on the website: https://darrensoft.ca/roadtrip/ Questions? Suggestions? We want to hear from you! Email us: [email protected]
Written user reviews are not shown here. Check current App Store reviews >
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.
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.