Turn-by-turn GPS navigation when riding your bike, with spoken instructions to keep you eyes on the traffic. You will never again need to stop and look at your phone when uncertain if you're on track.
If you miss a turn Co-Rider will automatically get you back on track and towards your destination. Instructions are currently english or danish but swedish and german instructions are underway.
Routes are specifically tailored to bikes, using bicycle paths where available and avoiding roads unsuitable for bikes. They are generated using OpenStreetMap data, and the app will only be useful in areas where OpenStreetMap coverage is good. Go to the Co-Rider support website to generate some routes in your local area before purchase to get a sense of the quality. You will not be able to get a refund because of spotty OpenStreetMap coverage.