Cardiio

What reviewers actually said

Built only from these 120 real reviews (foreign ones translated). Superscripts jump to the quote here. Apple has no per-review links, so [ref] opens that app's reviews on the App Store.

1. [R4] 5/5 · US Makes it simple!: I enjoy checking my bpm with this makes it so easy
2. [R14] 5/5 · US Great App: Love how I can easily check my heart rate anywhere and anytime, especially if I’m not wearing my smartwatch.
3. [R25] 5/5 · US FANTASTIC!: Such a quick & easy way to monitor my pulse, from ANYWHERE in the world! I LOVE IT! ♥️
4. [R8] 5/5 · US Great app: Woke up with racing heart, helped monitor the situation
5. [R19] 5/5 · US Awesome Monitor: I have many heart issues including an implanted defibrillator and Cardiio helps me monitor my heart rate and will warn me if it gets too low or too high. That is very important for my peace of mind.
6. [R36] 5/5 · US A Fibrillation: I suffer from A Fib, this app helps me confirm that my heart is not is sinus rhythm. Have just had ablation done to hearts week ago and having palpitations, so want to make sure it’s not A Fib. Appreciate app, would love to be able to purchase it, but on social security there is zero dollars left 2 days after payday.
7. [R41] 5/5 · US Cardio: Cardio gave me peace of mind Excellent It assist in my keeping my A-fib monitored It has became a very important part to maintain my health. Thanks ever so much
8. [R51] 5/5 · US Check pulse: Very good works perfectly I have arrhythmia this is a terrific website. Thank you.
9. [R31] 5/5 · US GREAT TOOL: As a healthy person I do enjoy watching my pulse every once in a while at low sixties early morning and low seventies after my coffee
10. [R39] 5/5 · US When I’m feeling my pulse racing…: It is so handy to have the cardio app on my phone. So I can keep track of my numbers.
11. [R48] 5/5 · US Benefits!: Useful tool to check regularity of heart pulse. Also useful to determine heart beats per minute and be able to make a record of both.
12. [R79] 5/5 · US Cardiio: I love this app
13. [R1] 1/5 · US Poor signal quality?: I will watch as the app measures my heart rate and stays in a very narrow range as I hold my finger over the camera for however long. It seems perfect, but then it just says “poor signal quality” with no other explanation. The signal quality was in fact not poor as I watched the data being collected and it seemed to be very consistent throughout the entire process. I need to
14. [R2] 1/5 · US Doesn’t work: Every time I used it, it measured the heart rate for quite a long time. Then, at the very end, it said “poor signal” and terminated. This is a terrible product. I deleted it, and I don’t miss it at all.
15. [R3] 1/5 · US Didn’t work: Every time I tried said poor signal and couldn’t do a reading no matter how I adjusted the light and camera. Other similar apps worked much better and actually worked. Disappointed.
16. [R12] 2/5 · US Great when it works.: More often than not I don’t get a reading because of “poor signal quality” no matter what I try to
17. [R68] 3/5 · US No longer accurate on iphone11: I loved this app to keep track of my irregular Heart rhythm when I had it in iphone8. It was very accurate. I upgraded to iphone11 and now it’s complete rubbish. It’s near impossible to get an accurate reading now. I guess it’s the light and camera lens positioning on the newer iPhone.
18. [R82] 2/5 · US Dont bother if u have a high heartrate: I love the idea of having a heart rate app that tracks my heart rate at least SOMEWHAT ACCURATELY. I was in the search of a heart rate app and stumbled upon this one hoping it could track my heart rate when needed and help with my POT syndrome. Sadly i was wrong. This app counts my heart rate way off most of the time. My heart rate will be at anything from 1
19. [R20] 1/5 · US Isn’t working properly: It was working excellent on iPhone 16 pro max but on iPhone 17 pro max 8 out of 10 times says poor signal!!!
20. [R291] 3/5 · GB Not so great with a new iPhone: I have been using this for years, but it is now very tricky to get a reading, as the led/flash and the camera the app uses are far apart on my new iPhone 12. I’m surprised they haven’t done anything about this yet, as the iPhone 11 also had this arrangement of lenses. It’s just a faff now and the quality of the measurement is poorer.
21. [R9] 3/5 · US I like the app but I don’t like it: You literally got to sit still no movement period or it will not register. You guys need to fix that issue.
22. [R73] 1/5 · US DON’T MOVE: This doesn’t work unless you’re a statue and haven’t been exercising within the last minute. If you want to take your pulse with this app while exercising or immediately upon stopping, it will give an error message. And by the time you redo it, your pulse will have dropped by about 10 bpm and you won’t get an accurate record. Just walking is enough to make this app a waste of time and
23. [R123] 3/5 · US Won’t finish and save consistently: I get about 1 out of 10 tries to save the results. Lower if I continue immediately. I keep getting an error message stating to keep still, fingers must be warm, yadda yadda… my hands are warm, not hot, not cold. I am sitting still and lens and hands clean, and watch the little ring finish its circle as the numbers reflect the beats, and then poof, error message.
24. [R304] 3/5 · GB Ok but not great: This is ok but a bit annoying to sit still! I have a fit bit also and the readings are very similar
25. [R5] 1/5 · US Scam: Claims it’s free, demands money for use after download.
26. [R23] 1/5 · US Cancelled before free trial expired: I did not subscribe to this thing. They are charging me for it.
27. [R35] 1/5 · US Beware: I signed up for a free trial and Apple billed me the very first day
28. [R50] 1/5 · US Subscribed for the “trial” and was immediately billed for the 39.99 for the year: Subscribed for the “trial” and was immediately billed for the 39.99 for the year.
29. [R16] 3/5 · US Better Cardio Apps out there: I am having a problem with this app, and it is virtually impossible getting the developer to respond to my concerns.
30. [R24] 1/5 · US Tried to delete: This might be fantastic for those following it. I realized it wasn’t for me, so contacted them to stop billing & cancel my account. They won’t respond. So much for free trial! Zero impressed!
31. [R52] 3/5 · US No response: Got the app It keeps waking me up with a reminder, wanted to stop it. Sent request for help same question four times So far no response
32. [R171] 3/5 · US Useful but there are problems: I like the app and I like the way that the data are displayed, but they’ve got some serious problems with continuity. About every fifth time that I go to use the app, it won’t measure anything and I have to delete it and then re-download it to get it to work. That’s after I’ve paid for a premium package, by the way. They don’t respond to emails about the issue, they
33. [R60] 1/5 · US Is this sketchy?: The faq and the demo video link to some weird thing in a language I have never seen with like Viking animations. Now I don't know if the app is safe.
34. [R88] 1/5 · US Bogus! Demo is a Game in other Languages: Yup I was in the app and went to look at the demo. I had taken my heart rate and wanted to see what else it could do. It was a peculiar screen like arcade ratings and such for games. I’m very upset! So who’s really monitoring this information?!
35. [R105] 3/5 · US FAQs??: What’s up with your FAQ section. It defaults to a gambling site in a foreign language. Has your app been hacked???
36. [R178] 3/5 · US What is up with the FAQ section: I want to rate this app higher but can someone please address what is up with the FAQ section?! It is the most bizarre thing I’ve seen. This is an app for heart rate and the FAQ looks straight out of a 90s late night sketchy infomercial. Call 1-800 whatever and get scammed. It’s not even an FAQ page!!! What is going on?!?!
37. [R26] 3/5 · US It will be best if the problems will be solved: It always crash when i go to insight tab or i save a heartbeat but its good to being free
38. [R57] 1/5 · US The developer says no data collected but privacy policy says otherwise: There are links to opt out of data by each company but then you click on it there's no opt-out page. It really bothers me that their Apple listing says there is no collection but the policies are clearly different.
39. [R84] 1/5 · US Privacy policy deception: It says on the app store that no user data is collected. However, in the privacy policy it states they collect, share and sell your information to facebook and google.
40. [R21] 5/5 · US Love it: Great app, useful. It helps me calm down when I get overwhelmed.
41. [R30] 5/5 · US Thank you: Thank you for such a great way to keep up with a complicated heart
42. [R22] 1/5 · US Doesn’t work with iPhone 17pro: Great reviews. But unable to get a reading with the way iPhone 17pro lenses are positioned!
43. [R59] 1/5 · US Does not work with iPhone 14: Loved this app with my iPhone SE 2020. Moved to the 14 and the app does not work. Hopefully a future upgrade will fix.
44. [R42] 1/5 · US WARNING: No longer one-time payment: Despite what the text in-app says, this app is no longer a one time payment and asks for either a weekly subscription of $6.99 or annual subscription of $39.99.
45. [R43] 2/5 · US Price misrepresented: The info shown for In App Purchases and the review I read said you can upgrade to Pro for a one-time fee of $9.99. But that isn't true. It’s a subscription model for $39.99/year. That's BIG difference.
46. [R45] 1/5 · US Seems like a good app except….: Except just like every app that says no subscription required, it offers you a free trial but with mandatory subscription after! And the online prices aren’t the same as the actual price on the app!
47. [R6] 5/5 · US No blood monitors: I’m enjoying the app but the only issue I have is that there is no blood monitor
48. [R83] 5/5 · US Doesn’t measure O2 levels: Doesn’t measure O2 levels. And, of course, doesn’t measure blood pressure levels. It is just an add-in external data!
49. [R237] 3/5 · US Pressão Arterial: Gostava que o App medisse a pressão Arterial também, quanto ao resto está ótimo