You will want to head to your phone operating system settings to enable location services for COIN to "Always On" to get the most out of the COIN App.
iOS:
Tap the Settings app icon and scroll up to open the search bar. Search "COIN" and tap the COIN App option. Tap "Location" and tap "Always". Be sure to enable "Precise Location" for greater rewards!
You will also want to enable "Allow Tracking" in case you participate in any Rewarded Challenges. Now, you are good to go!
Android:
Tap the Settings app icon, search or find "COIN" and tap the COIN App option. Tap "App permissions", tap "Location" and tap "Allow all the time". Be sure to enable "Use Precise location" before you leave!