True VO2 Max — Cardio Fitness

Most of my lengthy runs are on the weekend I’ve had this app for 3 weeks and it doesn’t sync all workouts I noticed most weekend workouts don’t load. Hard to evaluate true data when it’s not capturing it all. There is no back up way to import the data either.

I love the app when it works, but I often have trouble with it not reading recent outdoor runs or walks where there is indeed a VO2Max score. I use the same tracking method, Apple Watch Series 11, iPhone 17 Pro Max, tracked with the Fitness app every single time. Currently it only shows runs through early last week when I have had 3 outdoor runs since then. There is no refresh button, all permissions are granted, no changes made.

It’s amazing that it factors in elevation and temperature during the run. Easy to use and set up!