Cardalis

• Free

Last verified 6 Aug 2026

2.5 209 ratings · App Store

1. 2/5Useful to measure but not to track

   Good measuring breathing rate, but not to track it. It keeps all the measurements jammed into one big line graph. So if you take it daily for months, it becomes impossible to see the actual numbers or even trends over the past week or month- which would be the most useful to see if there's an issue or for upcoming Vet appointments. You can't change the date range for the graph either. I tried emailing myself the results but it just sent a picture of the same graph. So you would need to clear it out every month to see anything decently. Wish the app would have a date range function or even an additional page where it lists the actual numbers. You can't change the breathing rate limit. You have the option to, but there's no way to get the keyboard part of the screen to retract to press "done" and save it. If you quit the app it does not save it.

   RaiinbowEyes · 6 Aug 2026

2. 2/5my 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.

   grieving person · 6 Aug 2026

3. 1/5What happened to my data???

   I’ve been using this app for going on 3 years, and it has been a fantastic way to monitor the resting breath rate of my 3 dogs, one of whom is borderline for congestive heart failure. the other day when I went to get my biweekly measurement I couldn’t login. I assume the system was just down and decided to wait a couple days and try again. But today when I go to login, I am having the same problem. But now I see that it doesn’t even recognize my email address. That is 3 years of data just gone! And I’m afraid to register a new account in case they do get this fixed. No one from the app has made any kind of announcements that I have been able to find, the only thing that shows me I am not the only one affected is a random Facebook post, and I don’t even have a Facebook account, so I can’t interact! Little help, Cardalis????

   NeuroSydney · 6 Aug 2026

4. 4/5Great Heart Tracker, but

   This pet Resting Breath Rate Tracker is simple and easy to use. Historically, the app ALLOWED ME TO EMAIL to Cardiologist directly & PRINT copy of all tracking data with notes. THIS WAS EXACTLY WHAT NEEDED to coordinate with cardiologist and her entire veterinarian team (primary, ER, allergists, etc). Now the app does not allow you to email more does it allow me to print. I literally have to do a screenshot of the tiniest print, 10 times to capture the full year for our annual cardiologist appointment and u have no options for providing this critical info if show up at the ER with injury, etc that may significantly impact her heart, etc. While I understand this isn’t a paid app; I do believe the developer can commit to 3 or 4 days a year to ensure the functions CURRENTLY AVAILABLE ACTUALLY WORK, And since every Vet recommends this specific app, it deserves a one time a year update with tweaks that might support important medical advances improvements or even a $1 update charge if funds so tight you are unable to just maintain current capabilities which now no longer work. There are only a few options for pet owners, possibly disabled and non working who rely on this app several days a week, 365 days a year. I’d really appreciate this minimal cost and effort to the developer to ensure current functionality and would be open to critical (as in email to cardiac vet with notes, dates and RBR numbers; and industry critical info support as it relates to this specific purpose….cardiologists NEED X info to better use this info type updates). Even if a very small annual, if you choose to add updates. There are only other app options I don’t feel are as easy, or provide these basic options in a useful or free option. Until the average everyday person can afford the medical/for doctors apparatus that loops around tiny dog that does all the monitoring and delivery of medical data is available AND affordable…this is my only option to provide real time, daily or during critical illness scenarios. I’d really appreciate the minimum developer support to just maintain the current functions (email, printing) to be actual functioning/working items as in the beginning ….throughout its app use. Thank you for considering this.

   TLSTX · 6 Aug 2026

5. 4/5Useful tool with annoyances

   I am not the first to get irritated that this useful health monitor does not make it clear how to update the alerts. My dog had one high breathing rate, and ever since, I get a daily admonition to contact my vet about a (null) high breathing rate. I have e-mailed the data to my vet, which did not cancel the daily alert, and I don’t want to erase the data history, so we can look at it over the long term. Hopefully, Cardalis developers will reply (I also e-mailed the company), but as this is a minuscule part of the parents company’s work, I don’t think they care. The app isn’t even mentioned on their website, though the medication with the same name is.

   Cooking Organist · 6 Aug 2026

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