DigiDivine Trend AppMy 2 cents. 1 hour intervals between signals whether buy or sell seems too long especially for volatile crypto trading. If possible they should shorten the interval to 30 mins or ideally, as soon as a buy or sell signal could be generated. Otherwise, if there is no buy or sell signal at the next hourly interval and subsequent intervals a default "hold" signal should be generated and emailed to subscribers. In that case subscribers could be confident they are not missing a buy or sell notice if there is any failure with email notifications.