Complete mobile app featuring offline map and routes. Was published as "Nutiteq Offline Maps 3D app". Uses CARTO Mobile SDK: www.carto.com/mobile
It has a separate nuticomponents module that contains components free to use in your own application:
- GPS Location
- GPS Tracking
- North indicator with click to reset
- Scalebar
- UI to download packages, with notifications, message to suggest download etc
- Settings - change map units (imperials or metric), map language, map style
- Search
- Save location bookmarks, share them between devices using Firebase
- Show routes
License - 3-clause BSD
Note: this app is not officially supported and maintained. Use it as your own risk