BodyState 4+

I’ve never used an app that is this useful for only having one screen of data. The algorithms that determine your baseline RHR and HRV only during sleep and then show your values for the previous night are really useful, this data is more meaningful than just looking at what is displayed in the apple health app, since the default health app data is 24/7 and I specifically want to see what my HR and HRV was at rest to estimate my recovery. The latest update fixed the stuck on “fetching data” bug so ignore the first round of bad reviews for that. The BodyState value itself is accurate too, I’ve been close to 100 on good days, and very low on days when I had poor sleep and bad recovery, so this definitely matches the relative accuracy of Garmin body battery. You should include a tip jar in the app, this is really useful for a free app!

I'm new to the body battery concept so as a reviewer I have the advantage of having no set expectations. So far I find the concept interesting, but feel like the algorithm is mostly providing a one time value--the energy at the start of my day, and then gradually decreasing it without taking into account new HRV measurements. So I might feel super zen but it says I have 14% left because I went for a run, or I might feel out of it but I'm at 75% because I slept the normal amount and have not moved much.

I would love an expanded info section like another reviewer commented because it is very possible I am interpreting this wrong, but it really seems like the body state value is based on my sleep metrics and my workout metrics alone, and doesn't take into account other things I might do during the day that the AW can track (be stressed, walk around, meditate, repeat). And if I'm right I'm not sure why the app needs multiple taps to sync (I'm assuming with my phone) every time I want to check the value?

Have been using this app since the past month and I found it to be awesome!
I’m amazed at how accurately this app depicts my “body battery”, it’s insane! Just spent some extra $ to buy all the themes, that’s how much I think this app is worth it! Sending lots of support and love to the developer. 💯😭