Tower is a navigation program for OS Android for finding user location (by phone cell or GPS), viewing online maps, creating and storing waypoints and tracks, with minimal permissions and no background activity
See the project web page and
<img src="http://tower.posmotrel.net/fdroid_readme.png" alt="Get it on F-Droid" />
This distribution includes the LeafletJS javacsript library code ver. 1.9 (https://leafletjs.com, https://github.com/Leaflet/Leaflet), which has BSD 2-Clause "Simplified" License
This program uses several web APIs and loads data and javascript code, details and references are included in the LICENSES file.
Some of web services, despite being free of charge, require access keys. As these keys are not to be committed to public repositories, this app may appear in two kinds of distributions: full (with keys included in the binary) and pure open (without keys). The keyless distribution is fully operational, except for concerned services, and always has slots to enter user's own keys. See the manual for details.
Builders are free to provide their own keys with their distribution; the easiest way is via Gradle files as BuildConfig.yandexLocatorKey and BuildConfig.yandexMapKey ( instruction ).