https://youtu.be/BwdNSvCVk3k
for the iWatch, which features three c2 ergs. I didn't know what app they were showing, but now think it is "Workout." Doesn't seem to have great reviews, but it does allow you to chose a Rower as your workout.
However while I was looking, I came across an older app, "Metrownome" which looked pretty good. It doesn't seem to have been mentioned here, but allows you to set a rate, and a ratio and then gives you audible cues to allow you tl learn a ratio. I downloaded that, and it seems like it would be really good when you were learning. And also good when you want to try a different ratio. It came with a "default" ratio of 1:3, but allows you to set rates anywhere from 1:10 to 1:1.
Anyone use that one? (And fun to see the commercial.
)Alissa