Great app!

Assalamu Alaikum wa Rahmatullah. May Allah Subhana wa ta Alaa continue to reward the developers and all those seeking to remember to make our prayers on time, Amin. Some are complaining of no location option for free version. This might help, if you put, or have your location services "on", on your phone, and the app icon for this in the settings for the adhan, it will sync automatically. While I dont like to have my location service "on", on my phone, because I like my privacy, I put it on just to sync and turn it back off. I do have the full version on iPad and I think this option is available on there. While it would be easier to have that option instead if doing all that, I dont mind doing this as it is a small sacrifice beats missing prayers.
Insh Allah this helps.

Aaisha about Islamic Compass Free - Prayer Times and Adhan Alarm, v2.1