Have same question.
Need an OFFLINE app with FREE Voice Guidance - like free forever, without trial period.
Used to have Here We Go - still do - but they did 2 unforgivable things: 1) Suddenly upgraded the app on the day when I needed it the most, it didn't start at all on that on any later date, was just shutting down. 2) After getting to hotel with WiFi and reinstalling it again, I found that it now doesn't work without WiFi. When I have WiFi, I would rather use Waze or Google Maps - as noted, they are the best for on-line.
Sygic app is not bad - despite $33/year for Voice after 1 month trial. It saved my ars in downtown Portland Oregon when I needed to get back on Interstate 5. It showed - offline - a detailed map, my location ~1 mile from the highway (yes, close, but this town is a mess), and the route to I-5 BUT it was flipping between 2 different routes every few seconds. Without Voice you need a few minutes to look and memorize several turns, but it doesn't give you a few minutes! It's also flipping North orientation all the time, when you stand still. Now North is up, few seconds later it's down or left or right. Didn't they teach you in school that North on the map is always up? Alright, changing orientation makes sense when driving, you need to see what's ahead of you, but why it's jerking when you stand still?
So.... can anybody suggest an off-line AND free app with Voice? Covering US+Canada+Mexico. No hiking or flying, just roads.