Covid safe was poorly designed, it may not have impacted phone performance on some models but it absolutely killed others.
At first my Dad did the right thing and turned on Covidsafe every time he left the house, but after a couple of months he was asking me to buy him a new phone as it was going from 100% charged to 0% in a matter of 3 or 4 hours. Seemed strange to me, so after checking battery usage, I uninstalled Covid Safe for a week and all of a sudden his phone was back to needing to be charged every 2-3 days.
With each update we reinstalled and tried again, each time it killed his phone, so it was taken off again. I didnt feel safe with him being out with a flat mobile, so we decided to abandon Covid Safe altogether and rely on the QR codes once the state based app was mandated. The rule in our family is if a venue doesnt have QR they dont get our business.
If CovidSafe app ditched the bluetooth drain and instead became a national QR app then we would use it again. Until then, we download the state app for wherever we happen to be, maintain physical distance from strangers and by end of July whole family will be fully vaccinated (parents and BIL by early June, my sister and I in July unless we can move up our Pfizer appointments).