am Tag: during the day, refering to one day pro Tag: per day
It is possible to say "am Tag" when you actually mean "pro Tag", since saying "3 times a/per day" is pretty similar. I would say that "pro" is much more common when you want to express "X times in Y (span of time)"
The Language Level symbol shows a user's proficiency in the languages they're interested in. Setting your Language Level helps other users provide you with answers that aren't too complex or too simple.
Has difficulty understanding even short answers in this language.
Can ask simple questions and can understand simple answers.
Can ask all types of general questions and can understand longer answers.
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