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5 months agoI have Osmand+ and it works fine. One very easy way to improve the performance is to download the maps you need ahead of time.
Start by downloading your metro area and I can guarantee that positioning and navigation will be instantaneous. Unless your phone is to blame. FYI I am using a Google Nexus 7a. Very happy with Osmand+.
There is a guy named Arthur David Olson who maintains a small database of all the time zones in the world, including things like leap seconds and such. It’s used by everybody and it is updated several times a year. See here:
https://en.m.wikipedia.org/wiki/Tz_database