It is true I didn't market it, so possible it suffered a bit from that. Some of the 'Doesn't work on my device' comments were a bit unexpected (and unsolvable without $$$ to test on the devices), so I didn't want to spend money promoting it with issues. I was charging $3 I think, it has been awhile.

There was another seemingly popular paid ringtone app at the time, but I can't recall what it was. And a search now for 'android ringtone app' now brings up lists of 'Top X ringtone apps of 2018/2019' populated exclusively by free apps.