jtx Board allows you to manage your Journals (like meeting minutes), Notes and Tasks in one Android app. The app is compatible with the iCal standard (RFC5545) and is integrated with DAVx5 to allow the synchronisation of entries through CalDAV.
TechbeeAT/jtxBoard has 690 GitHub stars.
It currently ranks #27417 daily, #27934 weekly, #29860 monthly by momentum on Trending Repos; its best-ever rank is #5160.