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Show HN: Heart Rate Zones Plus – The first iOS app I developed

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Re: Show HN: Heart Rate Zones Plus – The first iOS app I developed

#81

Post by [deleted] »

tobias5 wrote: post #56
kccqzy wrote: post #22

I would prefer an adaptive approach where the user also enters perceived difficulty and the app learns the correlation between heart rate and perceived difficulty to figure out the zones. I consistently have high heart rate during exercise: a normal walk might get my heart rate to 130, and a moderate run (10:30/mile) might get my heart rate to 180. A very fast run gets my heart rate to 215 (this is beyond the max mea…

Happy that you found the Karvonen method first of all. The intensity is just the percentage of the zones. So zone 2 the lower end would be 0.6 and the upper intensity of the zone would be 0.7. I'm using (0.5, 0.6), => Zone 1 (0.6, 0.7), => Zone 2 (0.7, 0.8), => Zone 3 (0.8, 0.9), => Zone 4 (0.9, 1.5) => Zone 5 If you are able to reach 215 the problem might be that most of the calculations do 220 - age or something si…

[deleted]

Re: Show HN: Heart Rate Zones Plus – The first iOS app I developed

#82

Post by serial_dev »

yapyap wrote: post #6
serial_dev wrote: post #3

Congrats on the launch! I really would have thought it’s already part of the iOS built in apps! You mentioned it’s your first app. Did you vibe code your way through it or did you heavily use AI? I played around with Swift SwiftUI and I felt that AI helped me a lot in contrast to my day to day job, humongous code base, I can’t get AI to get those mythical 100x productivity gains, more like 0.37x, but for new projects…

0.37x is slower From the vibe of your comment I assume you mean 1.37x

What I meant is that it takes about three times longer to do something with AI tools than without.

In a real large scale project, it takes longer to get the tool give me the code that solves the problem and will pass the code review. Even if I don't let cursor write code for me, ChatGPT and the rest regularly hallucinates APIs that don't exist.

So during my daily job, I usually just do it myself. I still use them as "better Google", but I always need to double check everything.

Re: Show HN: Heart Rate Zones Plus – The first iOS app I developed

#83

Post by serial_dev »

cyberpunk wrote: post #17
serial_dev wrote: post #3

Congrats on the launch! I really would have thought it’s already part of the iOS built in apps! You mentioned it’s your first app. Did you vibe code your way through it or did you heavily use AI? I played around with Swift SwiftUI and I felt that AI helped me a lot in contrast to my day to day job, humongous code base, I can’t get AI to get those mythical 100x productivity gains, more like 0.37x, but for new projects…

Okay, admittedly I'm somewhat of a greybeard by this point... However... I thought that vibe coding was .... exactly heavily using AI... I know this not the place; but what exactly is your definition of 'vibe coding' since you've used it with such confidence in your comment perhaps you can enlighten this programmer..

Others already linked the original vibe coding tweet https://x.com/karpathy/status/1886192184808149383

To me, vibe coding means you don't get bogged down by the code, you just say your requirements and complain about end result until it works.

Heavily using AI, in comparison could mean 1. ask for small code snippets, 2. ask it to explain concepts, 3. ask which APIs to use and how, 4. ask it to rephrase your strings, ..., but you still "care" about the code and understand what's going on.

Re: Show HN: Heart Rate Zones Plus – The first iOS app I developed

#84

Post by swalling »

Love this idea as a runner!

Quick feedback:

- the bottom toolbar obscures Zone 1 measurements unless you scroll. You should make it fixed (like iMessage input area or the bottom tabs for Gmail iOS) or make the toolbar hidden until on scroll

- it doesn’t seem to import my past Health data and workouts at all? Even after I approved Apple Health permissions the app looks empty

- in general the information architecture is not quite right. Setup (is this necessary btw? An onboarding splash screen might help) and info are things I would infrequently use so they should probably live as smaller icons in the title area off to the right. Then you can just let the user swipe between Zones and Workout history as two primary views, with more of a split button style tab.

Re: Show HN: Heart Rate Zones Plus – The first iOS app I developed

#85

Post by ashryan »

ashryan wrote: post #73

Excited to try this! I just started zone training a couple of weeks ago as a way to target VO2 Max increases. I’ve indeed found it hard to track time in zone across a week. Thanks for building this!

I’m realizing that this app prescribes HR zones that are quite a bit different than what Apple Fitness has for me.

Instead of a calc, I’d like to be able to manually set the zones so I can match them with the zones I’m used to working with.

Re: Show HN: Heart Rate Zones Plus – The first iOS app I developed

#86

Post by tobias5 »

I'm preparing an update: https://testflight.apple.com/join/SEZPRVpJ

Besides some general improvements... these features were added:

- German language support - New "Days" view with time in zones for the last days - Manual option for max heart rate - Manual zone bound settings - Goal projection bar for weekly and monthly measurements - Helpers and explaining texts - "Last 10 days" as an option - Persistent navigation bar - Bug fix of the "other" sport icon - Faster metric fetch for changes

Will probably release it tomorrow. If someone wants to test. Happy to get feedback.

Re: Show HN: Heart Rate Zones Plus – The first iOS app I developed

#87

Post by tobias5 »

Updated App is in the App Store:

Besides some general improvements, these features were added: - German language support - New "Days" view with time in zones for the last days - Manual option for max heart rate - Manual zone bound settings - Goal projection bar for weekly and monthly measurements - Helpers and explaining texts - "Last 10 days" as an option - Persistent navigation bar - Bug fix of the "other" sport icon - Faster metric fetch for changes

Re: Show HN: Heart Rate Zones Plus – The first iOS app I developed

#88

Post by tobias5 »

nonameiguess wrote: post #4

I can't tell from reading the listing if this is a feature or not, but if not, you should add the ability to set custom targets that match your real heart rate zones rather than relying on the naive population estimators that Apple gives you, along with more important metrics like LT1 and LT2 thresholds and VO2 max. Ideally, this would be a feature of the exercise tracker itself, but getting it in a data rollup app i…

Hi I updated the app now there is a "Manual zone bound settings" feature. Hope that gives you the setting flexibitly you need. Thanks

Re: Show HN: Heart Rate Zones Plus – The first iOS app I developed

#89

Post by tobias5 »

swalling wrote: post #84

Love this idea as a runner! Quick feedback: - the bottom toolbar obscures Zone 1 measurements unless you scroll. You should make it fixed (like iMessage input area or the bottom tabs for Gmail iOS) or make the toolbar hidden until on scroll - it doesn’t seem to import my past Health data and workouts at all? Even after I approved Apple Health permissions the app looks empty - in general the information architecture i…

I updated the app. I think the update might solve these issues. Thanks

Re: Show HN: Heart Rate Zones Plus – The first iOS app I developed

#90

Post by tobias5 »

tedmcory77 wrote: post #78

I'd like to second the request to be able to manually set your max heart rate. I do a lot of zone two training, but my max heart rate is much higher than the allowable calculations.

Hi I updated the app now there is a "Manual option for max heart rate" and even "Manual zone bound settings" feature now. Hope that gives you the setting flexibly you need. Thanks
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