Some warnings 9 users report a free trial turning into a charge; 12 users report ads that misrepresent the app and 1 more report. Nothing confirmed. Checked: 500 reviews, the store listing and the privacy label.
From our automated analysis, 26 Oct 2026. Every label links to its evidence in the full report below.
This analysis describes version 8.2.0 of the app, analyzed 2026-10-26 .
The store currently lists version 8.2.0, updated 2026-01-10.
Store screenshots supplied by the developer.
Most accurate and easy-to-use heart rate app
- Used in heart research at UCSF!
- Get your heart rate in less than 10 seconds
- Check your stress levels
- See trends and insights
Just featured in Apple's new TV Ad “Strength” - use your iPhone to find out your heart rate in less than 10 seconds!
You DON’T need a dedicated heart rate monitor to get your pulse, download Instant Heart Rate today and use your camera’s flash to see how healthy you are!
With over 35 million users, the award-winning Instant Heart Rate app is all over the web.
Featured in: CNN, The New York Times, Chicago Tribune, The Guardian, and many more.…
From the developer’s store description.
For developers and the curious
The evidence, sources, measurements and versions behind every label above.
Facts that add context without being a charge.
In-app purchases run from USD 0.99 to USD 59.99 — a 61x spread across 10 items
The disclosed in-app purchases span an unusually wide price range. Published as context: the cheapest and priciest items may be different kinds of product entirely, so the spread alone deducts nothing.
Open observations that have not cleared the evidence bar.
Aggressive ad load: raised by 9 distinct reviewers (about 1 in 56 reviews we read)
This observation has not cleared the required evidence standard.
Advertising volume or placement that interrupts normal use: ads between every action, unskippable or forced full-screen ads.
Trial converts to a charge: raised by 9 distinct reviewers (about 1 in 56 reviews we read)
This observation has not cleared the required evidence standard.
The free trial demands a payment method up front and/or rolls into a paid subscription with no usable warning.
Misleading advertising: raised by 12 distinct reviewers (about 1 in 42 reviews we read)
This observation has not cleared the required evidence standard.
Reviewers repeatedly report that the app is not what its advertising showed. We never see the ad creative itself, so nothing we collect can corroborate or refute this — it is published as an attributed user report: what reviewers say, and how many of them said it.
Nothing was published as a thing to watch for in this assessment. That is not a finding that nothing is wrong with the app.
500 reviews read for this analysis. Each observation keeps the sample and store it was based on.
Very disappointed — I have heart issues and cannot afford an Apple Watch or Fitbit to keep up with tracking my heart palpitations. I used this app when I was trying to read my heart rate in the middle of one of my heart episodes and there…
Terrible functionality with iPhone 16 + ADS — This was a great app for checking your heart rate if you don’t have your watch on or didn’t have a watch. It does not seem to work at all with iPhone 16 and the amount of ads, length, and type…
30 second ads are too much — The latest app now displays 30 second ads. Thus, it’s significantly easier to just place my fingers on my wrist and take a manual reading.
FINANCIAL SCAM — I downloaded this a second time trying to get another free trial months later and it instantly charged me 59.99 which hasn’t processed but still says processing for months and I cannot even use my App Store to get apps bc…
Deceptive — Signed up for the free trial then cancelled within the 3 days but was still billed for the year. Requested a refund but was turned down. Very deceptive business practice.
Started 3 day trial, immediately charged — I started the three day free trial, and was immediately charged $11.04. Scam. I’m not going thru a dispute for $11, but I will let everyone know anywhere I can.
Finger BP? — Several of this type of health app advertise having the ability to take BP directly from a finger. Blatant false advertising and they all need to take that down. If you want BP you will have to have a BP cuff.
Classic Bait and Switch! — Lousy app. If you say you are monitoring BP, and you are free, then the least you have to do is allow me to measure my BP without having to pay. I don’t care for my heart rate - that’s already taken care of by…
Used this for a while — The premium price is a ripoff - false advertising. The app will give you a heart rate if you stay completely still & put your finger in the right spot consistently. Premium adds only some bogus general assessments.
A sampled review illustrates one person’s experience. It does not establish a finding on its own.
“Not assessed” means we could not measure it. It is never a zero and never a pass.
No package has been scanned for this app, so nothing is published about what it ships. That is an absence of evidence, not a finding.
Supporting measurements: not a complete list of possible harms or positives. Measurement vocabulary 1.4 · how these are measured
This analysis describes version 8.2.0 of the app, analyzed 2026-10-26 .
The store currently lists version 8.2.0, updated 2026-01-10.
Each store’s release notes, as the developer wrote them. They are the developer’s words, not ours.
• Check out the brand new Instant Heart Rate experience! • Includes general performance enhancements and bug fixes Enjoying Instant Heart Rate? Take a brief moment to rate us on the App Store! Want to give us feedback? Send us a note at [email protected]
Appworthy
instant-heart-rateAssessed 2026-10-26 from 500 user reviews, the store listing and its privacy label. We have not scanned the app's package, so nothing on this page was read from inside the app itself.
What the stores publish. Store ratings are the stores’ numbers, not Appworthy’s, and are never averaged across stores.
From the store listing. Billing terms are read from each purchase’s name — the stores don’t publish them — so treat them as a strong hint, not a disclosure.
These are really on sale; we just can’t tell from the name whether they recur.
This assessment is produced automatically. Three independent signals are read — user reviews, the store listing and the store privacy disclosure — and each candidate finding is filed under the sources that support it.
No charge stands on one kind of evidence — with one published exception. A finding is either a measured fact that anyone can reproduce (an ad SDK is in the package; every subscription bills weekly; the privacy label omits a tracker we can see), or it is an interpretation — and an interpretation needs independent sources to agree before it reaches the catch list. The exception is a harm only users can see: a charge may publish from reviews alone, as “Reported by N users”, once enough reviewers raise it to clear that charge’s own published bar. That agreement rule is what replaced the human reviewer, not a model’s confidence.
There is no overall score, on purpose. A 0–99 number was published here until 2026-09-15. It was withdrawn because it discriminated too weakly to be the instrument — 44.7% of every pair of apps tied — and because a single number is a verdict where a count is an observation. What publishes instead is a row of measurements, each of which says what was counted and, where we could not look, says that instead.
Findings under One source only are real reports we do not stand behind as findings. They are shown because withholding them entirely would hide a genuine complaint, and labelled because publishing them as charges would be an accusation off a single source.
Write to [email protected], or use the form. Name the finding, the app version and the evidence that needs correcting. Factual corrections are free and never depend on buying anything.