i have both mylaps and race monitor on my phone but definitely prefer race monitor. just a note that race monitor is/has changing from a 1 time $4.99 download to a subscription service. it will now be $4.99 per year or $.99 per month which still isn't bad. the tracks have no control over it nor do they receive any of the proceeds. race monitor is offering FREE races that you can watch without a subscription so i checked on what we'd have to do to get the speedway on that list and it's $100 per event so don't look for that. those that already had it downloaded are currently getting a free subscription thru the end of july.
My OPINIONS are just that and do not necessarily reflect the opinions of anyone or any track I am associated with!