Comparison

GridPoint GB vs Blue Light Maps

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

Head to head
About

GridPoint GB

Locate yourself on a paper Ordnance Survey map using your iPhone's GPS and compass, even without mobile reception. It provides your grid reference and heading, with accurate coordinate conversions. Features include Apple Watch integration, location sharing, and sunset/sunrise times.

Highlights
  • GPS and compass for location
  • Accurate coordinate conversions
  • Apple Watch app and complication
  • Location sharing
  • Sunset and sunrise times
  • Distress signal
Features
Read full description

If you have a paper Ordnance Survey (OS) map, GridPoint GB makes it easy to locate yourself — even when you've got no mobile reception. The app uses your iPhone's GPS and compass to provide your current grid reference and heading, and illustrates how to use this to locate yourself on the map. Coordinate conversions are implemented via OS's OSTN02, accurate to within 1m. The app also: * Includes an Apple Watch app and associated complication * Reports full numerical easting and northing, tetrad, raw latitude/longitude, a nearby postcode, and various heading parameters * Has a sharing facility so you can share, copy or store your location * Calculates next sunset and sunrise times * Can emit a distress signal, just in case All features are free to use — the in-app purchase is simply a tip you can give the developer to show appreciation. For details and instructions, please see http://mackerron.com/gridpointgb/ Please note: this app works ONLY in Britain (i.e. England, Scotland or Wales). It does not operate in other parts of the UK or British Isles and cannot provide coordinates in Northern Ireland or the Republic of Ireland, since a different coordinate system is used.

About

Blue Light Maps

Navigate faster and more accurately with this specialized navigation app designed for emergency responders. It offers detailed maps, optimized routing using legal exemptions, and features tailored for larger emergency vehicles. Offline maps ensure connectivity even in areas with poor reception.

Highlights
  • Detailed maps with visible addresses
  • Optimized routing with legal exemptions
  • Up to 60% shorter routes
  • Early turn notifications
  • Tailored for large emergency vehicles
  • Offline maps
  • Integrated destination search
Features
Read full description

Navigate smarter and arrive faster with BlueLight Maps—the navigation app built for the frontline, by the frontline. Specifically designed for police, EMTs, firefighters and private ambulance services, our app revolutionizes emergency response navigation. Unparalleled Map Detail • Most Detailed Maps Available: Building and addresses clearly visible, from apartment blocks to farmhouses. • Always Know Where You Are: Enhanced mapping ensures precise location awareness at all times. Optimised Routing Using Your Exemptions • Faster Routes: Factor in legal exemptions for restricted turns, bus gates, low traffic neighborhoods, and more. • Up to 60% Shorter: Find routes significantly shorter than those from Google Maps or TomTom. • Early Turn Notifications: Get timely alerts for turns, even at high speeds. Stay Oriented— • Know Your Location: Clearly see your current road and direction, crucial for assistance calls and accurate reporting during pursuits. • Enhance Communication: Aligns with agency principles by facilitating precise location sharing among services. Tailored for Larger Emergency Vehicles like Ambulances and Fire Trucks • Avoid Restrictions: Specialised modes ensure you don't get stuck at width restrictions and tight turns. • Smooth Journeys: Transporting a patient? Use our mode that avoids speed humps. Effortless Destination Search • Integrated Search: Use Google Search or What3Words to find destinations quickly. • Visual Guidance: Built-in Google Street View shows you the destination as you approach Offline Maps—Always Available • Stay Connected: Navigate seamlessly even in areas with poor reception. Trusted by First Responders “Allowed us to get to an incident much quicker compared to Google Maps.” “Enhanced on-screen ETA accuracy.” “A more efficient route, utilizing exemptions for a no-right-turn saved 3 minutes.” “Unlike TomTom’s suggestion to detour around traffic, we could clearly bypass it and saved a few minutes.” Start Your Free Trial Today Experience the difference with a free trial of BlueLight Maps. Continue with an individual subscription available within the app, or via an enterprise subscription through your employer. Terms of Use: https://bluelightmaps.com/terms Privacy Policy: https://bluelightmaps.com/privacy

Screenshots

GridPoint GB4 screens
Blue Light Maps4 screens

Verdict

The call

The clearest difference is review sentiment: GridPoint GB at 72% against Blue Light Maps's 35%. GridPoint GB also leads on iOS requirement (12.0 vs 16.6). Blue Light Maps's advantage is update cadence (fortnightly vs every 16 months). 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. GridPoint GB sells 3 one-off in-app purchases and Blue Light Maps sells 4 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

GridPoint GB ships an update every 16 months, Blue Light Maps fortnightly. The most recent releases landed on October 9, 2026 and October 17, 2026 respectively.

Scorecard3 real differences · 7 level
GridPoint GB versus Blue Light Maps: the parameters behind the verdict, then further details
ParameterGridPoint GBBlue Light Maps
PriceFreeFree
Rating—5.0 (1 ratings) — better
Positive reviews72.3% of reviews — better35.0% of reviews
Number of ratings—1 — better
Update frequencyEvery 16 monthsFortnightly — better
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPod, Apple Watch — betteriPhone, iPad
Requires iOS12.0 — better16.6
Further details — not scored
Size23 MB152 MB
Age rating4+4+
DeveloperGeorge MacKerronBlue Light Maps

Customer experience

GridPoint GB

Written reviews65 reviews
Positive72.3%
Neutral1.5%
Negative26.2%

Blue Light Maps

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews20 reviews
Positive35.0%
Neutral20.0%
Negative45.0%

In-app purchases

3 purchases

GridPoint GB

One-time3
  • Magnificent tip$2.99
  • Majestic tip$4.99
  • Monumental tip$8.99
4 purchases

Blue Light Maps

Subscriptions4
  • Basic3 Days trial$1.991 Month
  • Premium7 Days trial$4.991 Month
  • Quarterly7 Days trial$12.993 Months
Show 1 more
  • Annual14 Days trial$39.991 Year

Questions

Is GridPoint GB free?
GridPoint GB is free to download, with in-app purchases available.
Is Blue Light Maps free?
Blue Light Maps is free to download, with in-app purchases available.
Do GridPoint GB or Blue Light Maps have ads?
Neither GridPoint GB nor Blue Light Maps shows ads.
Which is updated more often, GridPoint GB or Blue Light Maps?
GridPoint GB ships an update every 16 months, and Blue Light Maps fortnightly. Most recently, GridPoint GB was updated on October 9, 2026 and Blue Light Maps on October 17, 2026.

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