using as a navigation aid on iphone and watch

Hi 

looking at various applications and came across this one , which loaded on my macbook, iphone - BUT not onto apple watch series 9 

So i'm looking for something i can use as a satnav for cycle paths and routes - and wondered how good this app maybe 

it looks like the £2 permonth  would provide maps , store maps as pdf etc etc , maybe this is the way i need to go eventually - BUT still new and just playing around with various apps - 

Maybe a shell out for garmin device , i have dropped a lot of money today on 2 different e-bikes , towbar and bike carrier

last year we stayed at lyndhurst and used maps and hired 2 e-bikes for the day, and so now i can take our own bikes and go out for the day , BUT it would be great to have directions on a satnav - OR even how the apple watch works with iphone aapple maps and gives taps on my arm for left / right - not sure (roundabouts etc ) travelled back from devon just on that 

any way - will play over the coming days - and wait for bikes to come in next week , and towbar fitting on Monday - so really looking forward to that 

We we only go on paths - the e-bikes are adventure type bikes - not mountain bikes , so gravel paths etc