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

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

#1

Post by tobias5 »

I built this iOS app because I wanted to get an overview of my time in zones per week without checking zones after every workout manually - Now I'm looking for feedback.

Description: Track time in heart rate zones. Track per day, week, month, 7 days and 30 days time period and how much time you spend in each zone. Set goals & visualize progress. Get details about heart rates zones of your workouts.

Features: Custom time periods, Workout to zone attribution to get a feeling which sport attributed most to each zone, Multiple zone calculation methods, Set personal time goals for any zone, Workout breakdown

Pricing: Free

Privacy: Nothing is tracked or send somewhere. Data is just on your device.

Any feedback and features request is appreciated.

Download: https://apps.apple.com/us/app/heart-rate-zones-plus/id674474...

Video of the app in action: https://www.youtube.com/shorts/-qtHxEdMEv0

Show HN: Heart Rate Zones Plus – The first iOS app I developed
apps.apple.com

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

#3

Post by serial_dev »

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 it’s been great, so I was wondering…

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

#4

Post by nonameiguess »

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 is better than nothing.

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

#5

Post by CharlesW »

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…

> I really would have thought it’s already part of the iOS built in apps!

Between the Apple Watch and Fitness app, you can see your heart rate zone during a workout, and then review workout heart rates/zones over time afterward. https://support.apple.com/guide/watch/view-heart-rate-zones-...

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

#6

Post by yapyap »

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

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

#7

Post by tchock23 »

CharlesW wrote: post #5
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…

> I really would have thought it’s already part of the iOS built in apps! Between the Apple Watch and Fitness app, you can see your heart rate zone during a workout, and then review workout heart rates/zones over time afterward. https://support.apple.com/guide/watch/view-heart-rate-zones-...

Sort of. You can only see your real-time heart rate on your phone when you're doing a cycling workout for some weird reason. Otherwise you have to awkwardly look at your watch if you're walking/running.

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

#9

Post by jpc0 »

More an organisational thing but, what is the long term sustainability plan for this project. Apple Developer Program isn’t free and apple isn’t exactly well known for keeping stable APIs.

If the answer is “until I don’t want to do it anymore” that is perfectly fine but then can there be a commitment to open sourcing (if it isn’t already) when you make that decision?

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

#10

Post by switchbak »

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

> 0.37x is slower

I don't think that's an accident.

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