There are things Zepraug does not settle, and that is deliberate.
A health app that asserts everything is an app that invents. On these three subjects the reference work does not agree: we show you your values, and we stop there.
Aim for 20% deep sleep
The two reference meta-analyses disagree on how those shares drift with age, and the more recent one finds no drift at all. The app shows you your shares and your own variation, not an invented target.
Do 80% of your cardio in zone 2
The two reference meta-analyses find no difference between the models for anyone who is not a competitor. The app shows you where you spend your time, without telling you where to spend it.
Past 7,000 steps, keep climbing
Past 7,000, the two meta-analyses diverge: one finds a plateau, the other a decline that continues to 17,000. Nobody settles it, and neither does the app.
The benchmarks the app does show are all sourced. Our benchmarks and their sources.