App Overview

Citymapper: All Live Transit icon

Citymapper: All Live Transit

Citymapper Limited · Navigation

Instantly compare your travel options in real-time across all transport modes globally!

Free · In-app purchases

PRICE
Free
In-app purchases
BUSINESS MODEL
Freemium
No overall Grossing estimate available
RATING
4.9
108,174 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 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.

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.

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

> SELECT BUILD PLATFORM:

Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.

// RORK SYSTEM PROMPT
Rork plan preview for Citymapper: All Live Transit: map the core Navigation 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 more efficient state management and error handling.

Assumption to check: Frequent app crashes during heavy usage

Validate with people who use this workflow before building.

Hypothesis 2

Introduce offline maps and caching for better user experience.

Assumption to check: Limited offline functionality

Validate with people who use this workflow before building.

Hypothesis 3

Enhance API calls and data syncing for live transit updates.

Assumption to check: Inconsistent real-time updates

Validate with people who use this workflow before building.

Hypothesis 4

Simplify onboarding and provide clearer navigation instructions.

Assumption to check: Complex UI for new 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

Instantly compare your travel options in real-time across all transport modes globally! Easily navigate your city with turn-by-turn directions for all your public transportation, walking, cycling and scooter trips. THOUSANDS OF 5 STAR REVIEWS * "This is my favorite transit app. Full-featured and a breeze to use. I really appreciate the Uber integration." * "Only way to get around NYC and Chicago. Easy and accurate. Download this one NOW" * "I love it. It’s the best thing since zippers, peanut and jelly and 1 TB thumb drives" * "Support for the SF Bay Area is particularly impressive because it aggregates all transit systems imaginable (BART, Caltrain, MUNI, VTA, etc.) into one seamless app" FIND THE BEST ROUTE ► Simple trip planning combining all transport modes: bus, subway, train, ferry, cabs, ride share, car share, bike share, e-scooters and walking. Discover routes you never knew existed HIT THE GO BUTTON FOR STEP-BY-STEP DIRECTIONS ► Turn-by-turn navigation for all your transit, walking, personal cycling, bike shares and scooter trips. Choose between 3 different map views, see the charge levels of e-scooters and e-bikes around you, we even help you avoid no-parking zones. We take care of the logistical thinking so you are free to enjoy the ride EXPERIENCE ONE-STOP-SHOP MOBILITY ► Compare cab fares, hail a ride, hop on a shared bike or find the nearest e-scooter all from within the app. Our partners include: Uber, Lyft, JUMP, Lime, Bird, Spin, Skip, Scoot, Citi Bike, JerseryBike, Bluebikes, Indego, CaBi, Divvy, Metro Bike, Breeze, Bay Wheels, Healthy Ride, Relay, BCycle, SA Bike Share, GREENbike, Grid, RTC Bike, BIKETOWN, Biki BEAT THE RUSH HOUR CROWD ► Live wait times and ETA so you'll never miss a bus, train or ferry again. Follow your bus / train as it's approaching on a real-time map, see the best train car to board, get alerted when it's time to get off, and get in and out from the best exit at any subway / train station PERSONALIZE YOUR CITY ► Save Home, Work and your go-to stops or stations for lightning fast trip planning. Subscribe to your favorite subway, train, bus or ferry line for automatic disruption, delay, and status alerts GET SOCIAL ► Share your live trip: let friends follow your live trip to know when you'll arrive. Share any location or address: one tap for others to get directions TRAVEL OFFLINE ► Access offline the official NYC subway map, Manhattan bus map, Brooklyn bus map, Queens bus map, DC metro map, Muni Metro map, and more CITY COVERAGE ► New York City | Chicago | Los Angeles | San Francisco | Washington DC | Boston | Philadelphia | Seattle | Miami | Atlanta | Portland | Denver | Baltimore | San Diego | Minneapolis | Houston | Phoenix | Dallas | Las Vegas | Pittsburgh | Honolulu | Salt Lake City | San Antonio | St. Louis | Cleveland | Austin + Many more worldwide! See the full list and vote for the next one in the app or at https://citymapper.com/cities TRANSIT AGENCIES ► We use open data from transit agencies in the cities we cover, including: MTA | CTA | LA Metro | MBTA | WMATA | SEPTA | NJ Transit | Muni | BART | King Bus | MARTA | LIRR | RTD | TriMet | Metro-North Railroad | PATH | Houston METRO | San Diego MTS | Miami-Dade Transit | Metro Transit | METRA | RTC Bus | TheBus | Port Authority | DART | AC Transit | Sound Transit | UTA | OCTA | VIA | PTD | Metro Transit | RTA | Capital Metro | Broward County Transit Division | NY Waterway Ferries | Washington State Ferries | LBT | Nassau Inter County Express (NICE)| Valley Metro | Metrolink | Santa Monica Big Blue Bus (BBB) KEEP IN TOUCH ► If you have questions or feedback or something we may have missed in your city email us at [email protected] Follow us on Twitter: http://twitter.com/Citymapper Privacy Policy: https://citymapper.com/privacy Terms of Service: https://citymapper.com/terms

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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
React Navigation
Axios
Zustand
React Native Maps
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.