I registered for outdooractive and burrowed down to find this;
ViewRanger - Legacy map agreement
In order to focus all our effort on our Outdooractive app and website, we will be switching off access to the ViewRanger app and website.
By accepting access to Legacy maps on the Outdooractive platform you confirm that you waive any legal claim against Augmentra Ltd and its directors in relation to any previously purchased contracts. You agree that by connecting your account with Outdooractive, any access to Legacy maps and content on the Outdooractive platform will be bound by the Outdooractive Terms and Conditions.
I hereby confirm that I have read and accept the above agreement on the further handling of the previously purchased lifetime maps at ViewRanger.
Confirm
One-off payments in ViewRanger
If you made one-off payments to access maps within ViewRanger, then we are offering free access to a set of maps via the Outdooractive app and website instead. The maps we are offering depend on the region of the maps you made one-off payments for in ViewRanger. The maps will be from the same map data provider or from an alternative map data provider depending on the map region.
See the map availability below.
Great Britain: if you currently have access to OS map tiles in England, Scotland, or Wales, you will have access to 1:50,000 and 1:25,000 OS maps across Great Britain. If you currently have access to maps from Harvey Maps, you will have access to all Harvey Maps currently published within the Outdooractive platform.
On the face of it, they are saying I will retain access to my paid for OS maps (as long as I tick the box), which would seem to be good news.