The MOC forum runs on Discourse software, which comes with native apps for iOS and Android.
To get the app go to Discourse Hub on the App Store (iOS) or https://play.google.com/store/apps/details?id=com.discourse&hl=en_GB&gl=US (Android)
Once installed, enter “forum.monoowners.club” and connect with your account. You can now use the forum directly from within the app, complete with notifications.