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
Trip Log & Driving by Tripbook
Tripbook is a mileage tracker app built to save you time and ensure complete, accurate trip logs
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.0
166 ratings · Top 30%
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.
Build your own version
Build Kit
Make this idea yours
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Add to a Remix
Combine features and design from your favorite apps.
Kit ready. Verify your email to download it.
Generating… usually about a minute.
Make it yours Optional
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
What's included17 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.
JavaScript is required to complete mailbox verification.
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 Trip Log & Driving by Tripbook: map the core Finance workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
Preview ready. Verify your email to reveal and copy the full prompt.
JavaScript is required to complete mailbox verification. Return to this prompt preview.
Continue in Rork >
Affiliate link: CloneChart may earn a commission at no extra cost
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
Simplify key features and focus on essential trip logging.
Assumption to check: Users feel overwhelmed by too many features.
Validate with people who use this workflow before building.
Hypothesis 2
Implement robust error handling and data validation.
Assumption to check: Occasional bugs with data syncing.
Validate with people who use this workflow before building.
Hypothesis 3
Allow users to customize their report views and formats.
Assumption to check: Limited customization options for reports.
Validate with people who use this workflow before building.
Hypothesis 4
Improve onboarding and in-app guidance for new users.
Assumption to check: In-app navigation can be confusing.
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
Tripbook is a mileage tracker app built to save you time and ensure complete, accurate trip logs. Whether you're a freelancer, employee, or anyone who needs reliable mileage records for tax deductions or expense reporting, Tripbook makes vehicle tracking effortless and dependable. Powered by industry-leading trip detection technology, Tripbook automatically recognizes when you're driving and logs your journey, no manual input required. This ensures accurate, complete records without the hassle of traditional mileage tracking. Why Tripbook? ◉ SAVE TIME - Automatically track trips, no manual logging needed. ◉ COMPLETE RECORD - Never miss a journey thanks to accurate, automatic logging. ◉ INSTANT TAX REPORTING - Generate ready-to-use mileage reports in seconds. ◉ DATA STAYS WITH YOU - Your mileage logs are backed up to your personal iCloud, not shared or stored elsewhere. ◉ CONSISTENTLY ACCURATE - You get dependable, precise mileage tracking. Every trip, every time. Key Features ◉ AUTOMATIC TRIP DETECTION - Trips are logged automatically as soon as you start driving, no manual input required. ◉ CLASSIFY TRIPS - Easily tag each trip as business, personal, or commuting with a simple swipe. ◉ FOREVER FREE PLAN - Always free. Track up to 20 trips per month, no trial, no expiration. ◉ DETAILED REPORTS - Export your trip data as XLS, CSV, or PDF files, perfect for taxes, reimbursements, or business records. ◉ ICLOUD BACK-UP - Your data stays yours, Tripbook never stores or accesses your trip information. ◉ CUSTOM ALLOWANCES - Set your own mileage rates for business and commuting trips. ◉ VEHICLE & ODOMETER TRACKING - Add your vehicles and log odometer readings to include accurate mileage data in your reports. Download Tripbook today for accurate and effortless trip tracking. For support or feedback, contact us at [email protected]. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://tripbook.io/app-privacy-policy/
Written user reviews are not shown here. Check current App Store reviews >
Screenshots
< Scroll to see more >
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
Redux
Axios
Victory Native
Formik
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.
