Do they have a boat version of this?

I get car sick easily but on open water I have to sit and watch the horizon or it's adios cookies.

It is specifically for using your phone. So I don’t know if it would help.

I don’t think it’s actually driving specific, I think it just is based on the accelerometer. So it might work.

It helps even if not actually using your phone, and for all kinds of motion.

(am highly succeptible to motion sickness, i generally have the feature on at all times).