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
Stride: Mileage & Tax Tracker
Get affordable insurance
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.8
86,490 ratings · Top 5%
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 included17 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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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 Stride: Mileage & Tax Tracker: 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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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
Implement a GPS-based automatic tracking feature.
Assumption to check: Users often find tracking mileage tedious and time-consuming.
Validate with people who use this workflow before building.
Hypothesis 2
Simplify the dashboard layout by using better grouping of features.
Assumption to check: The app can be overwhelming due to too many options on the dashboard.
Validate with people who use this workflow before building.
Hypothesis 3
Improve the paywall with clearer communication about what users gain from premium features.
Assumption to check: In-app purchases can be unclear, leading to confusion.
Validate with people who use this workflow before building.
Hypothesis 4
Enhance syncing capabilities with better error handling and user notifications.
Assumption to check: Syncing issues with some devices.
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
Get affordable insurance. Save on everyday expenses. Simplify taxes. File stress-free. Save an average of $710/year on taxes by using Stride! All for free. Join 2,600,000 people saving – for FREE. HIGHLIGHTS + Save big on taxes + Log daily expenses + File stress-free + Find hundreds of deductions + Get affordable health insurance for less than $10/mo. REVIEWED BY THOUSANDS + I've been doing "gig" driving for just a couple of months now, pretty much full time & it's already recorded about $1,300 worth of deductions! + “Stride literally has been the difference between me owing and getting money back, 4 years in a row.“ + “Stride is exceptional! I have been with them for 8 years as a Postmates and Uber Eats driver and I love the mileage tracker.” + “BEST app ever for tracking mileage and taxes for my two sources of income, photography and Shipt! I used to write it manually because NONE of the other apps did what I needed them to.” AUTOMATED SAVINGS Stride’s mileage tracker will automatically maximize your mileage deductions and capture them in an IRS-ready standard mileage log format. + Automated GPS mileage tracking + Reminders to make sure you never miss out on miles + IRS-ready mileage logs Users get $670 back for every 1,000 miles they drive! DISCOVER HUNDREDS OF WRITE-OFFS We find all the expenses and deductions based on the work you do. Stride finds users $200 worth of write-offs each week, on average! IRS-READY TAX REPORTS We prepare everything you need to file in IRS-Ready reports. Stride’s mileage and expense tracker users can save hundreds on taxes! PERFECT FOR: + Rideshare drivers + Delivery drivers + Entertainers + Creative professionals + Business consultants + Sales agents + Real estate agents + Home service professionals + Rental hosts + Insurance agents + Hairdressers + And many more!
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
axios
date-fns
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.
