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Updated July 2026 · real, multi-region App Store reviews
Head-to-head

iCardiac vs Heart Rate Monitor

iCardiac 4.8★ · Free + IAP 55
Winner Heart Rate Monitor
Heart Rate Monitor 4.6★ · Free + IAP 60

Heart Rate Monitor (App B) is a slightly better choice for basic heart rate tracking due to its higher volume of positive reviews for accuracy and ease of use, despite similar complaints about deceptive pricing and ads as iCardiac (App A).

Full reviews: iCardiac · Heart Rate Monitor

Both iCardiac and Heart Rate Monitor offer heart rate tracking, but both face significant user complaints about misleading 'free' claims, high subscription costs, and intrusive ads. Heart Rate Monitor has a larger user base and more positive feedback regarding its core heart rate functionality, while iCardiac struggles with additional claims of blood pressure and glucose monitoring that users find inaccurate or non-existent.

Head to head

Features tieR1R3R5R6
iCardiac iCardiac advertises features like blood pressure, blood sugar, and blood oxygen monitoring, but many users report these features are either not present, inaccurate, or require a paid subscription R1R3R6. Some users appreciate the convenience of having multiple health metrics in one app if they work R5.
Heart Rate Monitor Heart Rate Monitor primarily focuses on heart rate tracking, with some users expecting blood pressure or oxygen level checks which are either not available or require payment . Users who appreciate its core function find it useful for monitoring their heart rate and adding notes .
Ease of Use tieR7R9R12R15
iCardiac Users find iCardiac easy to use for heart rate monitoring , but some report issues with canceling free trials, finding technical support, or the app not remembering login details R7R9R18R20. New users also feel rushed into reviews R12R15.
Heart Rate Monitor Heart Rate Monitor is generally considered easy to use for its core function , but some users find it complicated . There are reports of glitches like inability to adjust age or date formats , and crashing .
Reliability & Accuracy edge: Heart Rate MonitorR7R16R38R47
iCardiac iCardiac receives mixed reviews on accuracy. Some users find it accurate and reliable for heart rate and blood pressure R47, while many others report it as inaccurate, especially for blood sugar and blood pressure R7R16R38.
Heart Rate Monitor Heart Rate Monitor also has mixed reviews on accuracy. Many users find it accurate and reliable, with some cardiologists even impressed by its validity . However, a significant number of users report it as inaccurate, especially for heart rate and blood pressure .
Price & Value tieR3R6R7R10
iCardiac iCardiac is heavily criticized for deceptive advertising of being 'free' when it quickly requires subscriptions, often $9.99/week or $40/month R3R6R7R10. Users feel it's a waste of money for features they don't get or can do themselves R7R28.
Heart Rate Monitor Heart Rate Monitor also faces strong criticism for misleading 'free' claims, with users being charged $50 for annual subscriptions or encountering frequent payment prompts after short trials . Users find the ads intrusive in the free version .
Support tieR7R9R18R20
iCardiac Users report difficulty finding technical support or a way to cancel subscriptions or free trials within iCardiac R9R18R20R26. There are also complaints about not being able to get refunds R7.
Heart Rate Monitor Heart Rate Monitor users also struggle with support, reporting inability to reach developers for refunds or issues . One user mentioned receiving an email from the developer after a review, but it didn't resolve their issue .
Pick iCardiac if

you are willing to pay a subscription for a multi-metric health tracker and hope its blood pressure and oxygen features are accurate for you, or if you primarily need a basic heart rate monitor and find its free tier sufficient R5.

Pick Heart Rate Monitor if

you need a straightforward heart rate monitor and are prepared to either tolerate ads in the free version or pay for a subscription, as many users find its core heart rate readings reliable .

Evidence note: Both apps have a high volume of negative reviews, particularly concerning pricing and misleading 'free' claims, which skews recent sentiment. The free-vs-paid asymmetry is significant, as many negative reviews stem from users expecting a fully free app and being disappointed by subscription walls or intrusive ads. Positive reviews often come from users who either found the free tier sufficient for basic heart rate or were satisfied with the paid features.

Frequently asked

Are iCardiac and Heart Rate Monitor truly free to use?
No, both iCardiac and Heart Rate Monitor are not truly free to use beyond basic functions or short trial periods; users frequently report being charged for subscriptions, with iCardiac costing as much as $9.99 a week or $40 a month, and Heart Rate Monitor charging around $50 for an annual subscription after trials R3R7R13R28.
Can these apps accurately measure blood pressure or blood sugar?
Users report that iCardiac's claims of measuring blood pressure and blood sugar are often inaccurate or non-existent, with many reviews stating the app cannot perform these functions using only a smartphone R1R16R24R30. Heart Rate Monitor does not widely advertise these features, and users who expect them are often disappointed .
Is it difficult to cancel subscriptions or get refunds for these apps?
Yes, many users of both iCardiac and Heart Rate Monitor report significant difficulty in canceling free trials or subscriptions and obtaining refunds, with some stating there is no clear way to contact technical support or that developers are unresponsive R7R9R20R26.

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. [R1] iCardiac 1/5 · US Misleading information: Not for blood sugar and blood pressure
  2. [R3] iCardiac 3/5 · US heart rate blood pressure reading.: very disappointed. lost 39.00 and stuck for a year. stupid me bought for year by mistake. not convinced it actually reads true readings. save your money
  3. [R5] iCardiac 5/5 · US icardiac: Awesome Blood pressure and heart rate reader
  4. [R6] iCardiac 3/5 · US Glucose check: Please advise in your summary that the only free part of this app is the heart rate application. I was looking for a glucose check on my iPhone but I have to subscribe to a plan. I don’t need a plan I’ve already got a doctors plan just need to quick check glucose at times.
  5. [R7] iCardiac 1/5 · US Waste of time: I downloaded the app and it was not free as it claimed in the beginning. So I paid about $45 for nothing. It’s definitely inaccurate and every time I open it, the app doesn’t remember me.. By the way the blood pressure app has the same problem. Waste of money. Please tell me how I can request a refund.
  6. [R9] iCardiac 3/5 · US Cancel free trial: I can’t find in settings how to cancel the free trial.. I don’t want to use the app.. there is no way to talk to technical support …
  7. [R12] iCardiac 3/5 · US Day l: Although today is day one of using this APP l, am in between rate ranges so I will just say 5 I’m on neutral ground.
  8. [R15] iCardiac 3/5 · US New Customer: This survey jumped the gun. I just started the app 5 minutes before survey and I’m locked in to answering good or bad before proceeding. Maybe you should take a look at giving that question more time to answer properly.
  9. [R16] iCardiac 1/5 · US Incorrect blood sugar levels: Tested my blood sugar at 120, the app says 85. Useless
  10. [R38] iCardiac 1/5 · US WARNING: misleading app claims: as someone researching health monitoring tools I am deeply concerned the apps claiming to measure blood sugar and blood pressure using only a smart phone, or even allowed to exist. A phone camera can reasonably estimate heart rate because it detect changes in blood flow using the light called photoplethysmography. that is not the same as checking blood sugar or blo
  11. [R47] iCardiac 5/5 · US Accurate: Keeps me on my feet and aware of my pressure.
  12. [R10] iCardiac 1/5 · US another one: another lie to get you to download, seen a ad says completely free, not completely free to download but completely free period!! why can’t people that produce these apps just be truthful? it’s not hard to do and is the only right way to be!! Deleting app don’t want to pay for something like this and probably don’t don’t work? there’s a reason hospitals use precision tools for checking
  13. [R18] iCardiac 1/5 · US Please cancel this app: I don’t want this any longer remove it
  14. [R20] iCardiac 1/5 · US do not get: cannot cancel
  15. [R13] iCardiac 1/5 · US IS NOT FREE AT ALL: On the advertising it says “and it is free”. Yeah free to download and fill out all the questions but not FREE to use. You should be putting that information in your advertising so people don’t waste their time. Or clarify that to use it is 9.99 a WEEK!
  16. [R28] iCardiac 2/5 · US Seriously !?: I paid $9.99 for them to check my pulse. Are you kidding me and everything else is what you enter into it so this is basically a journal app that you’re being charged $9.99 A WEEK!!! Total scam
  17. [R24] iCardiac 1/5 · US THIS APP CANT DO WHAT IT CLAIMS. THEY ARE LYING TO YOU IN HOPES THAT YOU’LL LIKE THEIR APP AND USE: There have been a couple apps like this that mislead you into thinking they can read blood glucose. At best they can read from other devices or store the info you put into their app. I will never buy an app from developers who mislead me like this because they have no integrity and will do it aga
  18. [R30] iCardiac 1/5 · US Lies lies lies .: I’m just so tired of these apps that say they They are going to check my blood sugar and they lie. Nothing on here. Says it will check my blood sugar. So I deleted it right away. This is like the 10th one you should be very cautious. And delete delete it and leave a negative review.
  19. [R26] iCardiac 1/5 · US Don’t do it: It is a trap and I haven’t found a way to cancel it either!!!!

Synthesized from 120 recent App Store reviews · updated July 2026 · View on the App Store