good idea in theory but exercise tracking is erratic at best. sometimes it double counts, more often it counts short. this morning target 60 lunges counted 59 when I did over a 100.....app can't count left sided exercises only right. going to uninstall and ask for refund. update 13 Oct was only counting lunges on one leg not the other. today 30 pressups app counted 3. app calibrated in gym studio not a small house full of furniture? tried to persevere but not going to