Free

Details

  • Released
  • Updated
  • October 20, 2012
  • October 7, 2026

Features

Cardalis screenshot #1 for iPhone
Cardalis screenshot #2 for iPhone
Cardalis screenshot #3 for iPhone
Cardalis screenshot #4 for iPhone
Cardalis screenshot #5 for iPhone
Cardalis screenshot #6 for iPhone
iphone
ipad
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About

Monitor your dog's resting respiratory rate to help manage heart failure. This app helps you record and graph the data, which can then be emailed to your veterinarian.

✓Measure resting respiratory rate
✓Record rate as a graph
✓Email results to veterinarian
✓Track heart failure progression
✓Informational and educational tool
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What users say

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+1

What's New in Cardalis

2.8

October 7, 2026

Updated the minimum supported iOS version to 15.0.

User reviews

Lost all my data

I was logged out several months ago and all my data was lost when I logged back in. I had to create a new account from scratch. I used it for several more months without issue and I liked the new layout but today noticed at the end of the day none of my measurements for today were saved despite clicking save afterwards. I’ve tested new measurements and none will save. It’s a critical period for my dog and I can’t afford to risk this again. Finding something else.
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Recent update is bad

I’ve been using this app for a year and it’s been great. The 30 second clock to get the breath per minute rate is much prefer preferable to the new 60 second rate. Also, all my data is lost. It also seems like the app only saves the data for one week. And now it seems I have to login every week with my email and password. Please go back to the old version. I do not recommend this app at all.
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Keeps getting worse

Why do you keep releasing updates that ruin your own app? First you delete every user’s data without warning, and now the breathing rate counter is fixed at a full minute with no option to change it? Really, really inconvenient. To people looking for an app to count respiratory rate, at this point doing it manually is preferable to this.
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The author doesn’t care

They decided to change to a cloud storage model and gave no thought to how it might affect users. This data is vital for treatment of my dog’s serious medical issue and they just don’t care. Garbage.

Cannot trust this app

Lost 10 years worth of tracking for my old dog with heart disease.

Developer apps

User experience

🐞

Reported Bugs

18 issues

Critical data loss during app updates

Bug

App freezes and crashes on launch or navigation

Bug

Email functionality not working or removed

Bug

Print functionality broken or removed

Bug

Notes not saved or retrievable

Bug

Persistent high-reading alerts cannot be dismissed

Bug

Graph display corrupted on iPhone 15 Pro Max (notch coverage)

Bug

Involuntary screen rotation between portrait/landscape

Bug

Keyboard popup blocks comment input field

Bug

Settings changes not saving (target frequency modification)

Bug

Incorrect timezone display with no adjustment option

Bug

Daylight saving time not handled correctly

Bug

Notification badge (red circle with '1') cannot be removed

Bug

Graph data outside screen boundaries

Bug

Reminders triggering at wrong frequency or times

Bug

Menu buttons hidden by keyboard

Bug

Incompatibility with older iOS versions

Bug

iPad compatibility issues

Bug
✨

Requested Features

18 requests

Support for multiple pets/dogs in single app

Feature

Cat-friendly version or pet-neutral branding

Feature

Ability to add notes to all readings (not just high ones)

Feature

Customizable timer intervals (15, 60 seconds)

Feature

Ability to enter past/historical readings

Feature

Multi-user sharing for same pet

Feature

Better graph navigation and date range filtering

Feature

Acoustic signal when timer ends

Feature

List view option for data display

Feature

Awake vs sleeping breathing rate distinction

Feature

Comments visible on chart with tap-to-view icons

Feature

Remove splash screen on app launch

Feature

Improved graph with hover-over time details

Feature

Export as JPEG format

Feature

Line-of-best-fit for multiple daily readings

Feature

Ability to modify/delete individual readings

Feature

Disable reminders without data loss

Feature

Timezone settings adjustment

Feature

FAQ

What does this app do?

This app helps you measure and record your dog's resting respiratory rate. This data is presented as a graph, which can be emailed to your veterinary surgeon. It is intended for informational and educational purposes related to managing dogs with or at risk of heart failure.

How can I use this app to help my dog?

If your dog has or is at risk of heart failure, your vet may ask you to monitor their resting respiratory rate. This app allows you to easily track this metric over time, providing valuable data for your veterinarian to assess your dog's condition and treatment.

Is this app free to use?

Yes, the application is available for free. There are no in-app purchases or advertisements mentioned.

Can this app diagnose my dog's heart condition?

No, this app is intended for informational, educational, and research purposes only. It is not a diagnostic tool and should not be used to diagnose, cure, mitigate, treat, or prevent any disease or condition in animals. Always consult with your veterinary surgeon for diagnosis and treatment.

What kind of information can I share with my vet?

You can share a graph of your dog's recorded resting respiratory rate with your veterinary surgeon. This data can help them monitor the progression of heart failure or assess the effectiveness of treatment over time.