Great logging program.

Even though I use MacLoggerDX as my primary logger because it supports my radio and a few other reasons, I have used RUMLog for a couple of years to maintain my log database and to check previous band/mode QSO's

Great sorting and tracking features as well as a terrific Packet Cluster interface that alerts you to needed spots in a variety of useful ways.

Also, it's integration with Logbook of the World is better than anything I have found on the Mac.

The ability to look at worked/confirmed stats for Paper only, LotW only or combined is very well done.

Also integrates well with eQSL.

Terrific and responsive support.