woldsweather wrote:OK which software would you recommend (sorry I suppose it's app).
try downloading komoot.
it seems to work pretty well: you can specify 'mountain bike' (will try to use off road where possible), 'bike touring' (will use cycle tracks sometimes), 'road bike' (only paved roads). You can also set your cycling speed so that it will give you an arrival time that is accurate for your own fitness level.
They do charge for voice navigation, it's £29.99 for the whole world, £8.99 for a 'region bundle', which is one or more counties (e.g., 'N Yorkshire', 'Hampshire' 'Surrey & Sussex'). A single 'region', e.g., 'West Surrey' is £3.99, BUT you get the first region free.
So you can try it out for nothing. Depending on where you live for all local routing then you probably need at least 3 * £3.99 regions to cover the local area. So they do want £29.99 out of you, ultimately.
Komoot uses Open Street Maps data, which are user-created maps & pretty accurate & complete in the UK. OsmAnd is a free (more-or-less) OSM app which also does routing with voice, but it's not as configurable in terms of the routing options as Komoot and will probably send you down cycle tracks.
Google Maps does free voice routing but it doesn't do it particularly well - you've got 'car', which is potentially dangerous and avoids the good cycling roads, and 'bike', which will send you down lots of tracks, which you might not want. If you know the area vaguely, you can add 'stops' to try and force it off the bike tracks, if you don't want them.