I use five different applications as part of my ongoing fitness routines. These include Apple Activity, Peloton, RunKeeper, Pedometer++ and Withings.
Just before we left for our trip to Washington DC in April, with my Move Goal set at 910 calories in the Apple Activity app on my AppleWatch, I reached the goal 393 days in a row. That is my longest streak ever. I smashed my record of 155 days that I set just before I went to the Army/Navy game in December of 2019.
This streak was largely possible due to the fact that we weren't traveling during the pandemic. I doubt that I will ever be able to break this record.