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      Android​

      • Devices running Android API 29 or later need background location permission, so the user must choose "Allow all the time" for the geofence API to work.

      • On single-user devices, there is a limit of 100 geofences per app. For multi-user devices, the limit is 100 geofences per app per device user.

      • On Android 8.0 (API level 26) and higher, if an app is running in the background while monitoring a geofence, then the device responds to geofencing events every couple of minutes.

      • Users must turn on both WiFi, mobile network, and Google location accuracy for the geofence API to work as intended.

      • When your app is running in the background on Android 8+, your app still receives updates in batches a few times every hour.

      More information in terms of device battery optimization can be found here.

      iOS​

      • Up to 20 locations in a small area (e.g. 500 meters radius) can be used.

      • iOS does not support fake GPS servers, and so, Mapp uses .gpx files to simulate fake GPS locations. Details: ​Create a .gpx file and add it to a project​

      • Push notifications are not sent if the user lacks an available network.

      • Apps can expect a notification when the device moves 500 meters or more from its previous notification. Notifications are not sent more frequently than once every five minutes.

      • If the device can retrieve data from the network, the Location Manager is much more likely to deliver notifications on time. For more details, see here.

      • Popup specifications for allow location depend on the device version. The location must always be allowed. Additional notes are in the following table.

      Version

      Pop-Up

      Comment

      iPhone X

      Software version 13.5.1

      1. ​Allow While Using App ​

      2. ​Allow once ​

      3. ​Don't allow​

      The user should find the application in ​Settings​ > ​Location​, and choose ​Always​ as a possibility.

      iPhone 6

      Software version 12.4.6

      1. ​Only While Using the App​

      2. ​Always Allow ​

      3. ​Don't allow​

      It is sufficient to click ​Always Allow​ on the popup (if ​it​ is not picked, the push notifications will not be delivered until the user goes to device settings and activates ​Always​ in application location settings).

      Create a .gpx file and add it to a project​

      1. Download Google Earth Pro

      2. Use the tool ruler to create a detailed route. For details and steps for creating a .gpx file, see https://www.starpath.com/gpx/.

      3. Download the .gpx file, and add it to the XCode project that you use for testing Geo.

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