Comparison

Caltrans QuickMap vs Postmiles

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Caltrans QuickMap

Access real-time California traffic conditions, including speeds, camera snapshots, and lane closures. Receive alerts for road closures near your location. Customize your map view to display various highway information and points of interest.

Highlights
  • Real-time freeway speeds
  • Traffic camera snapshots
  • Lane closure alerts
  • CHP incident reports
  • Highway information display
  • Geotargeted notifications
  • Customizable map preferences
Features
Currently charting
Read full description

Know Before You Go: QuickMap puts real-time California traffic data straight from Caltrans in the palm of your hand — so you can plan smarter, avoid delays, and drive with confidence. What's on the map: - Freeway speeds and congestion - Live traffic cameras and snapshots - Lane closures and CHP incidents - Chain controls and snow plows - Changeable message signs - Border wait times - Safety roadside rest areas, Park & Ride lots - Commercial vehicle information including: -- Weigh stations and Escape Ramps -- Terminal/Service Access Ramps -- Overweight Corridors and California Truck Networks Auto-refresh will refresh data every 3 minutes unless a different refresh interval is selected in the settings screen. Manual refresh is also available via the refresh button at the bottom right of the map. Enable Geotargeted Notifications to receive alerts about road closures near you — even when the app is closed. Note: If you choose to enable Geotargeted Notifications, this app will monitor your location in the background and alert you (via a Push Notification) to State Highway System road closures occurring near you. Continued use of background location may decrease battery life. Questions or something not looking right on the map? We want to hear from you — reach us at quickmap@dot.ca.gov.

About

Postmiles

This navigation app assists California highway workers in locating postmiles on the state's highway system. It offers map-based searching, precise location finding, street-level views, and integrated directions to specific markers or bridges.

Highlights
  • Locate postmiles on CA highway system
  • Pan and zoom map for quick searching
  • Search with 10th of a mile accuracy
  • Street-level view with Look Around
  • Get directions to postmile markers or bridges
  • Lookup coordinates in decimals and degrees
Features
Read full description

Postmiles is a simple maps app that helps CA highway workers search for postmiles on the CA highway system. Save time by quickly locating the nearest postmile by panning and zooming on the map. Or use the search functionality to find postmiles with an accuracy of 10th of a mile. Get street level view with Look Around. Get directions straight from the app to a desired postmile marker or a bridge. Lookup coordinates in decimals as well as degrees. Postmiles uses privacy friendly location services to show your location on the map.

Screenshots

Caltrans QuickMap4 screens
Postmiles4 screens

Verdict

The call

The clearest difference is rating: Postmiles at 4.3 against Caltrans QuickMap's 2.9. Postmiles also leads on update cadence (every 6 weeks vs every 3 months). Caltrans QuickMap's advantage is ratings volume (254 vs 18) and chart position (#155 vs unranked). On price, ads, in-app purchases and monetization model there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Postmiles holds the better App Store score, 4.3 against 2.9. That said, the two scores are not equally well evidenced: Caltrans QuickMap has 254 ratings behind it against 18, so its average is the more settled of the two.

UpkeepUpdate frequency

Caltrans QuickMap ships an update every 3 months, Postmiles every 6 weeks. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

Scorecard4 real differences · 7 level
Caltrans QuickMap versus Postmiles: the parameters behind the verdict, then further details
ParameterCaltrans QuickMapPostmiles
PriceFreeFree
Rating2.9 (254 ratings)4.3 (18 ratings) — better
Positive reviews28.9% of reviews—
Number of ratings254 — better18
Update frequencyEvery 3 monthsEvery 6 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
Best chart rank#155 — better—
DevicesiPhone, iPadiPhone, iPad
Requires iOS18.618.0 — better
Further details — not scored
Size28 MB224 MB
Age rating4+4+
DeveloperCalifornia Department of TransportationAmarinder Grewal

Customer experience

Caltrans QuickMap

All ratings254 ratings
Positive42.1%
Neutral12.6%
Negative45.3%
Written reviews128 reviews
Positive28.9%
Neutral17.2%
Negative53.9%

Postmiles

All ratings8 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

Bugs and requests

Caltrans QuickMap

Reported bugs

11 issues
  • App crashes immediately upon opening
  • App closes itself even when not driving
  • Camera feeds display error (play button with slash)
  • Search feature completely non-functional
  • Location and refresh buttons stack on iPhone XR
Show 6 more
  • App redirects to FAQ page during navigation
  • Inconsistent camera functionality (works sometimes, not others)
  • Tap on road closure symbols returns incorrect nearby locations
  • Chain control symbols not displaying on iPhone app
  • App crashes during major storms when most needed
  • Codec incompatibility prevents video playback on iPhone

Requested features

15 requests
  • CarPlay compatibility
  • Live video streaming for cameras instead of still images
  • Terrain and satellite map view options
  • Ability to zoom and pinch camera images
  • Larger, more visible map icons
Show 10 more
  • Customizable saved map regions with memory
  • Weather radar layer integration
  • Customer service request submission within app
  • Hazard reporting interface in-app
  • Direction indicators for road signs before opening
  • Freeway speed data display instead of color bands
  • Extended coverage to other US states
  • Last update timestamp visibility
  • Clickable explanations for all map symbols
  • Fire perimeter information on fire layer

Postmiles

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Caltrans QuickMap

No in-app purchases

None

Postmiles

No in-app purchases

Questions

Is Caltrans QuickMap free?
Caltrans QuickMap is free to download, with no in-app purchases.
Is Postmiles free?
Postmiles is free to download, with no in-app purchases.
Which has better reviews, Caltrans QuickMap or Postmiles?
Postmiles is rated higher. Caltrans QuickMap averages 2.9 out of 5 from 254 ratings, while Postmiles averages 4.3 from 18 ratings.
Do Caltrans QuickMap or Postmiles have ads?
Neither Caltrans QuickMap nor Postmiles shows ads.
Which is updated more often, Caltrans QuickMap or Postmiles?
Caltrans QuickMap ships an update every 3 months, and Postmiles every 6 weeks. Most recently, Caltrans QuickMap was updated on November 2, 2026 and Postmiles on November 3, 2026.

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