hi i have been using this app for a number of years right from the first business calendar app; the best feature i like is the management of reminders where the reminders stay on even after the event end time till is dismissed manually. however since i have upgraded to S10 the reminders are automatically removed after the end time. no change in settings has made any difference. unfortunately queries to the support team hasn't helped. such a shame update- switched to aCalendar app which works