Hi! Thanks for this feedback. Right now there isn't a setting for that. We hope to add more settings soon!

Another option could be this - If a learner has to go out of town, is sick or has urgent other business and cannot spend time with Duo., the streak number does not drop to zero, but remains at the number it was or drops by one each day a learner does not check in. This would be more user friendly than simply losing all streak totals for a very likely unavoidable absence from the site.