Please integrate a procedure like "Download and install available new updates now" in the "About us"-area of DH, otherwise the installation-time is a game of luck.
For Drone Harmony Plus updates are checked automatically at start. In addition, users can go to Account & App Menu in order to initiate an App Update check manually.
For Drone Harmony Basic users Google Play store handles currently the roll-out and update distribution. In addition, you can set how your android device shall handle these updates:
Automatic install of updates, Automatic download & manually confirm install, fully manual
Having said that, a manual initiated app update check & install for Drone Harmony Basic can be added (Planned feature).