Rabbi Sholomo Levy explains the history, meaning, and some of the mysteries of counting using the Kabbalistic method. In this video, he shows that the spiritual journey of counting in this manner helps us to reach a divine destination on Shavuot.
Apps for counting the omer using this Kabbalistic method on your phone or device (or printed booklet) can be obtained at this location:
https://www.meaningfullife.com/category/torah/months-holidays/nisan/myomer-app/