Do you have Frequency values such as LF/HF ratio?

We currently do not use LF/HF ratio or other Frequency Domain calculations in the app. This is because research shows LF/HF to be very inconsistent and a poor estimate of the Autonomic Nervous System balance in short-term, rested measurements – readings under 5 minutes are generally considered too short to accurately obtain the LF and VLF frequencies. Our main focus for the app is short-term Morning Readiness readings (1 minute to 5 minutes) where Time Domain rMSSD based HRV calculations are well established to be more accurate and useful.

That being said, we are planning on adding Frequency Domain calculations (Power Spectrum Density analysis, LF power, HF power, and LF/HF ratio) to the app and dashboard soon intended for longer measurements. Frequency Domain values will still not be our main focus of the app and we will provide warnings and education to the user when it is not reliable (i.e. short readings under 5 minutes).