There is no option to turn off alarm after snooze.

[aliHOZA]

If user snooze the alarm and then decide to turn off alarm for that day, there is not any way to do that.
User have to disable and enable the alarm again to do that which is not a gentle way!

I am using version 2.10 on Samsung stock android 9

[dandoor]

Actually there is. Uncheck the alarm (then recheck it to enable it again).