Ask HN: What is your favourite fitness and training app?

On the paid front I do:

Down Dog / HIIT by the same company.

https://www.downdogapp.com/, $39.99/yr for random autogenerated workouts and yoga routines and other apps all included in the price.

On the free side:

The staggering amount of content on youtube. Search for HIIT and sort by recently uploaded. Fantastic high quality content and more variety then one person would ever need all for $0/yr.

For weightlifting I still haven’t found anything better than google sheets for planning, and pen and paper for tracking workouts.