I do a lot of walking and wild camping, obviously I use paper maps but always like to have an electronic backup. For a few years I've been happy with the OS software on Android, actually, a de-Googled Android, I started to have problems with it so I stuck to a version that worked and declined the updates. One of the things I like is the ability to mark a route on a PC and have it available to download to my GPS, print out a map and have a backup on my phone.

Predictably, OS started to degrade older versions so I started looking for a replacement, i tried a couple of alternatives that were either hobbled in their ability to work across platforms or didn't have the features I needed/wanted, eventually, whilst trying to resolve some of the issues with the OS maps software, I came across a reference to Viewranger, which promised OS maps and nearly the same functionality. Predictably, it is no longer maintained, but it is part of Outdoor Active - which is a far bigger project and includes OS & IGN mapping (if you pay £29 p.a.) plus other international OS-alike mapping, along with the ability to create routes on the desktop, export to GPS, print & obviously use on my phone.

I've been testing it over a few weeks and I'm very happy with it, yes, you need to pay for the ability to use OS maps (OS charge about £26 p.a.) but you do get more than just GB, a lot of the features are common across both applications but for me, the fact it 'just worked' on install was reassuring compared to the faffing it takes to get OS Maps to see the GPS signal and not crash out.

It's a good backup to paper maps, I still miss the likes of Fugawi & Memory Map for PC route planning and tracking in a vehicle, but these days most of my travels are on the hoof with dogs, even if I have to drive to get there.

https://www.outdooractive.com/en/

Useful. Thanks. I have the OS app which for the annual fee is amazingly good value for whole GB at 1:25 and 1:50 but to add more countries for a similar price is great!  Gone to a good home: 2011 4.4 TDV8 Vogue SE Buckingham Blue with Ivory and clear glass = "Rory"
2025MY Defender D350 90 in Silicon Silver on coils
1974 Series 3 Lightweight = "Millie"
Many, many other Landies over the years
My preferred specialist: www.glenrands.co.uk
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For OS I use Memory-Map as I can download the latest 1:25k as a whole data set to my phone so it works without internet access which is useful not to mention potential essential when heading off into the hills. It's not cheap but I use it for my job so can justify the cost. I think there are other platforms where you can predownload areas for offline use and pay per square KM. 2012 TDV8 Vogue (L322)

I use OS Maps which allow's you to offline the maps, absolute bargain IMO.

OT But has a play with the new Emergency SOS & Find my via satellite in the new iPhone last week out in the Peak District with no signal and it was very impressive! Sold - Bell a 2015 MY16 Loire Blue Autobiography 4.4 SDV8
Previously George a 2007 MY07 Java Black VSE 3.6 TDV8
Previously a 04 MY04 Defender 90