Doesn’t sync
The app doesn’t sync with new data from Garmin connect or Strava. Old data from before HealthFit is installed, yes. New data? No. All advice followed, nothing worked to fix this bug.
中文
希望尽早出中文
Please add Chinese language support
Please add Chinese language support
Best app ever
This app is so good, no competition on any other platform
Title: Excellent App — Question About CTL (42-Day Average) Calculation
First, I wanted to say thank you for building HealthFit. I’ve tried Apple Fitness, Apple Health, Garmin Connect, Strava, and several other fitness apps over the years, and HealthFit is easily my favorite. In my opinion, it’s better than anything Apple has produced for serious athletes.
What I appreciate most is that it presents training data in a way that’s actually useful. Metrics like CTL, ATL, TSB, aerobic decoupling, training load, and heart rate analysis are incredibly valuable and much easier to interpret than Apple’s own ecosystem.
I also really appreciate the export feature. I regularly export my workouts and analyze them with ChatGPT, which has essentially become my endurance coach. The combination of HealthFit’s detailed metrics and ChatGPT’s analysis has been fantastic for tracking my progress toward a half marathon and sprint triathlon.
I do have one question regarding CTL.
My understanding is that CTL is based on a 42-day exponentially weighted moving average (EWMA) of training load, similar to the Performance Management Chart used in TrainingPeaks. Because it’s a rolling average with a 42-day time constant, I wouldn’t expect it to increase dramatically in a single day.
However, I noticed what appears to be my CTL increasing from 69 to 77 in one day, which doesn’t seem mathematically possible if CTL is indeed using a 42-day EWMA.
Could you please confirm:
* Is HealthFit’s CTL based on a 42-day exponentially weighted moving average?
* If so, could you share the exact calculation or formula you use?
* Is there any scenario where an apparent jump like 69 → 77 in a single day could occur (for example, a recalculation, data synchronization, or historical workout import)?
Based on the formula published on your website (CTL_today = TRIMP × λ + (1 − λ) × CTL_yesterday, with λ = 2/43), I wouldn’t expect CTL to increase from 69 to 77 from a single workout. Can you help me understand how HealthFit arrived at that value? Was the metric recalculated from historical data, or is there another factor involved?
I’m mainly trying to understand whether I’m misinterpreting the metric or whether something unusual happened with my data.
Thanks again for creating such an outstanding app. It’s become one of the few fitness apps I use every single day.
What I appreciate most is that it presents training data in a way that’s actually useful. Metrics like CTL, ATL, TSB, aerobic decoupling, training load, and heart rate analysis are incredibly valuable and much easier to interpret than Apple’s own ecosystem.
I also really appreciate the export feature. I regularly export my workouts and analyze them with ChatGPT, which has essentially become my endurance coach. The combination of HealthFit’s detailed metrics and ChatGPT’s analysis has been fantastic for tracking my progress toward a half marathon and sprint triathlon.
I do have one question regarding CTL.
My understanding is that CTL is based on a 42-day exponentially weighted moving average (EWMA) of training load, similar to the Performance Management Chart used in TrainingPeaks. Because it’s a rolling average with a 42-day time constant, I wouldn’t expect it to increase dramatically in a single day.
However, I noticed what appears to be my CTL increasing from 69 to 77 in one day, which doesn’t seem mathematically possible if CTL is indeed using a 42-day EWMA.
Could you please confirm:
* Is HealthFit’s CTL based on a 42-day exponentially weighted moving average?
* If so, could you share the exact calculation or formula you use?
* Is there any scenario where an apparent jump like 69 → 77 in a single day could occur (for example, a recalculation, data synchronization, or historical workout import)?
Based on the formula published on your website (CTL_today = TRIMP × λ + (1 − λ) × CTL_yesterday, with λ = 2/43), I wouldn’t expect CTL to increase from 69 to 77 from a single workout. Can you help me understand how HealthFit arrived at that value? Was the metric recalculated from historical data, or is there another factor involved?
I’m mainly trying to understand whether I’m misinterpreting the metric or whether something unusual happened with my data.
Thanks again for creating such an outstanding app. It’s become one of the few fitness apps I use every single day.
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Great in depth tool
I originally installed this to enable cycling powermeter data sync from Apple Fitness to Strava, which Apple Fitness did not support by default (but apparently does now). But the level of data and info on rides in this app is crazy! I’m very data driven and love this app so much. I’ve now paid for the annual subscription which doesn’t even give me any extra features I need, but I wanted to support the developer for a job well done.
The only request (which is likely not possible due to how Apple Fitness logs it - I log via an Apple Watch Ultra 3), but power meter balance would be great.
The only request (which is likely not possible due to how Apple Fitness logs it - I log via an Apple Watch Ultra 3), but power meter balance would be great.
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Best app when it comes to raw data
This beats even garmin when it comes to data
Excellent app
I hear there’s a beta with activities being pulled from Intervals.icu back to Apple Health. I’d love this.
MyWhoosh ride -> MyWhoosh website -> download .fit -> HealthFit -> intervals.icu
That’s my current pathway and the manual fit file fetching is a drag
MyWhoosh ride -> MyWhoosh website -> download .fit -> HealthFit -> intervals.icu
That’s my current pathway and the manual fit file fetching is a drag
An excellent app to help track fitness
I’m a cyclist, I’ve found this app invaluable in helping track my fitness. I use it in addition to Strava and Training Peaks. It’s great for exporting Apple health data to those platforms (eg weight data from my Bluetooth scales, blood pressure measurements, sleep data, HRV and other such data captured by my watch which is otherwise invisible to those apps). While it can’t replace those platforms it’s a highly valuable supplement to them.
Also its ‘AI Coach’ feature is way better than Strava’s (which is generally laughable).
Highly recommended.
Also its ‘AI Coach’ feature is way better than Strava’s (which is generally laughable).
Highly recommended.
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Amazing app, even better support
I had an issue with training load no longer working after a recent release.
The developer was very responsive to my outreach and was able to resolve my issue.
For those who might also be experiencing this: IF you suddenly see no training load calcs, check that your resting heart rate is syncing correctly to your profile. Mine was not and this was the issue.
The developer was very responsive to my outreach and was able to resolve my issue.
For those who might also be experiencing this: IF you suddenly see no training load calcs, check that your resting heart rate is syncing correctly to your profile. Mine was not and this was the issue.
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Lovely . Beats garmin
If possible, add something like body, Battery or stress and recovery score
Response from developer
Hello! Thanks for the kind words. A daily steps widget is on my to-do list, but it's not a high priority at the moment. There haven't been many requests for it, and my to-do list is already pretty full. Sorry about that, but I'll keep it in mind.
Amazing Stats, FFF widget for the win !
For those of you who love things like the Fitness freshness metrics, being able to track everything you do and really give you fitness insights without some silly per month sub I bet you this has everything and more.
Great for deeper understanding
As a mostly self-coaching moderately competitive runner, this is easily the best app out there for statistics and understanding how you’re doing running wise. I absolutely recommend to anyone willing to put in the time to understand their training in depth
MyWhoosh Support
I came across this app last year and found it really useful. In that case I want to ask if you have plan to add MyWhoosh as an available data source?
Amélioration
Bonjour, j’aime beaucoup cette application, je l’utilise depuis de nombreuses années années cependant j’aimerais savoir si vous pouviez donné la possibilité de changer les métrics lors du partage sur Instagram : j’aimerais afficher le dénivelé par exemple.
Merci
Merci
Awesome app
This app works great! Syncs all my activities to iCloud and Strava like a charm. Only thing it’s missing is a “sync all” button so I don’t have to scroll through my history checking if it missed anything :)
Awesome app
Nothing else that I’ve used has this level of functionality, in a really polished app, and a great price. Ability to import Zwift ride data and then display everything, and sync it in Apple Health/Fitness is great. (I found direct Zwift to Fitness to lose lots of data)
Very good App
I was hesitated to download this app in the first place, but after purchased it, I found it is definitely worth of money for daily running and other workout.
Lacking Garmin Integration
The app looks great and love the local data only design. But unfortunately it doesn’t support Garmin Connect. I’d be happy to pay the yearly subscription to get that capability.
语言选择
加个中文就完美了
