Free

Details

  • Released
  • Updated
  • October 20, 2012
  • July 6, 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
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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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What's New in Cardalis

2.6

July 6, 2026

Completely revamped app

User reviews

LOST ALL OF MY DATA

This was a decent app to track the respiratory rate of my small dog with a heart murmur. I check roughly once every other week. This week I go to check and I now need to login (I have no login) and I have lost 100% of the data that I have been compiling for the past 6 years. No notice. I also can’t even create an account so I’m annoyed all around. Complete and total fail, Cardalis. People actually use this app to maintain and manage pet health, you’ve just screwed a lot of us for no reason.
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LOST YEARS OF DATA

Years of valuable data completely lost without warning!

my data is gone & i miss my dog

was a great app to use that was recommended by my vet when my dog first got diagnosed with CHF. he recently passed away and i didn’t have the courage to open up the app until now. i didn’t expect that i’d never be able to see the last heart rates of his that i tracked. The lack of care and responsibility regarding user data management and accessibility is beyond disgusting and the company as a whole should be ashamed for not even giving users a chance to save the data before the app was revamped.
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Update destroyed a great app

The recent app has just completely ruined a simple product that worked well. I don’t want to log in to measure my dog’s heart rate every single time. It’s impossible to switch between dogs without changing the setting for which one is the “main” dog. Every single extra step increases the chance of the dog waking up while you are trying to get the app working. Clearly updated by someone who doesn’t have a dog. What a tremendous shame.
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Lost years of data

My pup has severe mitral valve disease and we were using this app for years to track his heart rate. Now my hubby and I are not able to log in and we have lost years of data, right before his upcoming cardiologist appt. Very disappointing!!

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.