thanks for that cudz.
In that case I'd recommend OSMand.
Free.
Unlimited offline maps for a fiver for a lifetime unless I missed something when I signed up/downloaded it from googleplay.
Seem to remember that a year or so ago they were even doing it for half price.
You can even do routes offline - I have done it atent.
That does sound interesting. Going to have to investigate.
You can try it for ever for free as I understand it - just a limited number of areas you can download.
Paying allows you to download everything. Though you wouldn't have it all loaded up at the same time.
The maps can be updated every month.
There is an additional payment if you want to download OSM map updates every day or whatever but I can't think why you would want/need to do that. You're supposed to be out riding
Also additional payments for other stuff but it's all stuff I don't need/really want.
The interface can be a bit odd but there's a wealth of stuff in the POIs**. You can import your own gpx route files to show up offline. And you can also import your own POI files to show up offline - I have done that with a list of spoons thanks to a tool a friendly whizz on here provided for extracting the file from the spoons file (they no longer offer a gpx).
** you can even (and I must remember how to do it) search for and superimpose on the map showers. And I think it maybe shows the opening times of toilets in some entries. By the by, and I really really cannot remember how I discovered this, it will even show "brothels" on the map as a separate category.