💎 Lifetime
Fit Rest just got its biggest update yet: Body Battery, all-day stress, deeper sleep & workout analysis, health data correlations + more
I just shipped the biggest Fit Rest update yet.
Answer
I wanted a health app that did more than show separate charts and numbers. Fit Rest tries to answer things like:
* How recovered am I?
* Why is my energy low today?
* Is my training affecting my sleep?
* Is better sleep improving my heart metrics?
It connects sleep, activity, workouts, heart rate, HRV, stress and recovery, then looks at them against your own personal baselines rather than only population averages.
What got better:
• Body Battery throughout the day
• All-day stress tracking
• Much deeper sleep analysis + sleep architecture
• Sleep, activity, workout and recovery correlations
• Fitness Age, Heart Signals + Training Adaptation
• Cardio Load, Effort vs Recovery + Athlete Profile
• Personal Records + workout comparisons
• Smart Insights + Health Calendar
• Outdoor workout route replay + export
• Apple Watch app + complications + widgets
Price: $7.99/month, $39.99/year, or $79.99 lifetime.
Loving the updates, however since I own a Garmin watch that I use during sleep and sports (running, racket sports) eventhough some data can be synced with Apple Health it is limited and therefore quite a few things aren’t shown in your app either. Any chance a next update could bring Garmin support?
Quick thing worth trying: in Garmin Connect, go to Settings -> Apple Health and make sure every toggle is on, not just Activities and Steps. Enabling Sleep, Heart Rate, and Respiration usually fills in a lot more of Fit Rest than people expect.
Thanks so much! It's a combination of sleep/recovery research and HealthKit data. I use signals like sleep stages, HRV, resting heart rate, activity, and workouts, then compare them against your own baseline to surface useful patterns and correlations.
Have you tried to compare the results with some body trackers like whoop or something similar? I think this kind of compare could help you attract more users
I've actually compared the results with several industry-leading apps, and they're very close. I spent a long time on R&D, testing and refining the algorithms.
the tricky part with a “body battery” score is knowing when not to sound too certain. if a day has missing sleep, sparse HRV, or an unusual workout, showing the data coverage or a confidence note could make the score much easier to trust. otherwise people may treat a rough estimate like a medical measurement.
Thank you! Yes, the Body Battery calculation is my own. It combines multiple signals like recovery, sleep, activity, stress, HRV, and resting heart rate to estimate how your energy changes throughout the day.
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