US: Esri has released an app called Explorer for ArcGIS. With the app, users can access any of their organisation's maps authored in ArcGIS Online or Portal for ArcGIS.
Users are able to search for information about their assets, determine where their assets are in relation to their current location, and share that information easily. The app allows users to share maps several ways including e-mail, text message, and platform-specific methods such as AirDrop (for iOS). The initial release of the app is available on iOS, with an Android version to come in a future release.
Explorer includes a sketching tool that enables users to redline their maps. Being able to sketch on the map allows easy identification and verification of user edits and allows Explorer users to communicate and collaborate with each other easily.