Aides... like images explaining calibration? or do you mean a beep or something when you go over the white line?
No; just text walking me through the process on the rolling-graph screen itself.
EDIT: I was very interested in using the app--I'm not a morning person--but the calibration was more mental effort than I was willing to invest: you present a lot of information on the pages preceding the rolling-graph. Just my 2 cents, but I feel like a polished app should have a more welcoming user experience, and it does feel very polished otherwise. Food for thought?
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