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
Hackney: Compare Rideshares
One app
Free · In-app purchases
PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
★ 4.5
41 ratings · Top 15%
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 included18 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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Quick prompt
Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
// RORK SYSTEM PROMPT
Rork plan preview for Hackney: Compare Rideshares: map the core Travel 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
Integrate more rideshare services for comprehensive comparisons.
Assumption to check: Limited rideshare options compared to competitors
Validate with people who use this workflow before building.
Hypothesis 2
Implement a price lock feature for users.
Assumption to check: Inconsistent pricing due to real-time updates
Validate with people who use this workflow before building.
Hypothesis 3
Streamline the UI for easier navigation and cleaner layout.
Assumption to check: User interface can be cluttered
Validate with people who use this workflow before building.
Hypothesis 4
Add a chatbot or direct support feature within the app.
Assumption to check: Lack of in-app support for users
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
One app. Every ride. The best price. Hackney brings together Uber, Lyft, Waymo, Curb, and Empower in one place. Compare prices and wait times across all your ride options, then book with one tap. See everything at once > Instantly view every available ride. See which provider has the lowest price or the shortest wait. No more app-switching. Book in seconds > Tap any ride to open the provider's app with your route and ride type already selected. Just hit confirm to book the ride. Your prices and promotions > Connect your rideshare accounts to see exact prices, including personalized promotions or discounts. Share from Maps > See a place you want to go? Share it from your maps app to Hackney to compare rides. Your places, always ready > Save Home, Work, and your favorite spots. Your saved places sync automatically from your rideshare accounts. Tap a saved place from the home screen to instantly view prices. Ride history > All your rides show up in one unified history. Tap any past ride to view details in the provider's app. What you'll see for each ride - Real-time prices - Wait times - Surge pricing indicators Supported services - Uber - Lyft - Waymo - Curb - Empower Terms of service: https://hackney.app/terms Privacy policy: https://hackney.app/privacy
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.
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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.
