# Cardia AI: Blood Pressure, HRV — user reviews > 25 indexed App Store user reviews of Cardia AI by Trendium LLC, rated 3.90/5 from 359 ratings. - Source: https://appshunter.io/ios/app/cardia-ai-blood-pressure-hrv/id6752782646/reviews - App overview in markdown: https://appshunter.io/ios/app/cardia-ai-blood-pressure-hrv/id6752782646.md - Rating breakdown: 5★ 214 · 4★ 44 · 3★ 26 · 2★ 16 · 1★ 59 ## Newest reviews (5 of 25) ### 2/5 — Blood Pressure *2026-05-07* The blood pressure is off. I measured my blood pressure with the app and it showed that I had elevated blood pressure. I then did it at the same time with three other BP units and they were all normal and similar in numbers. Not impressed. **Developer response:** Thank you for trying the app and sharing this. Blood pressure readings can vary based on finger placement, lighting, movement, and device conditions, so the app should be used for wellness tracking and trends, not as a replacement for a medical blood pressure cuff. We recommend using your cuff results for health decisions. Please contact our support team so we can help review your setup and improve your measurement experience. ### 1/5 — Cardia AI *2026-04-09, version 2.2* Terrible app. When using the app it by blood pressure was all over the place. I made an appointment with my primary physician for blood pressure. My blood pressure was 118/60. Cardia was used next and it showed 126/90. I want a refund!!!!! ### 1/5 — App *2026-03-22, version 2.1* Can not get app to work at all. Is this even legit?? Thanks. ### 1/5 — You said free app *2026-03-12* False advertisement, they want money ### 1/5 — Guy iconic *2025-12-29, version 1.5* Fix cuz his sh m ## Most critical reviews (10 lowest-rated) ### 1/5 — BP stopped working ten days ago. Reported 4 times. No response!!! *2026-08-14, version 2.7* Unreliable. Lack of reply to my email What’s going on? Am I to contact Apple??? ### 1/5 — Rip off *2026-08-14, version 2.7* Does not work for me ### 1/5 — Useless *2026-08-14, version 2.7* Wont allow you to see results if you dont pay upfront. No thanks. This is a scam...👎 ### 1/5 — Stopped working *2026-08-04, version 2.7* I have a one year subscription! On day 6 this app stopped working and wanted me to give more money. I will dispute this scam. ### 1/5 — Blood Pressure is not accurate *2026-07-13, version 2.7* Do not use this app. I want my money back ### 1/5 — Not accurate *2026-06-01, version 2.6* The BP monitoring is not accurate. Calibration doesn’t work and I can’t delete the calibration history. I paid a yearly subscription and I’m so disappointed. I want a refund ### 1/5 — Inference not data *2026-05-25* At least let me try the app before you ask for £30! How stupid I’ll never do that. And without a cuff you’re just guessing at blood pressure definitely not measuring it. DOES NOT MEASURE BLOOD ORESSURE AND NOT WORTH THE MONEY. I’m a health author! ### 1/5 — Big bucks *2026-05-20, version 2.4* Shocked not by my blood pressure but by first downloading free ap only to find out it does have costs ### 1/5 — How can I know? *2026-05-19, version 2.3* The App makes a bunch of vague claims, so I downloaded it. It asks me to put my finger on the camera, then hides all the results. No trial? Does it measure blood glucose or just allow me to log measurements from elsewhere? Might be a revolutionary App, but I’m not going to pay $60 based on vague claims. Then I’m asked to rate the App, so here you go. ### 1/5 — Outdated medical opinions *2026-05-14, version 2.3* This app still thinks high cholesterol is bad for you, along with fatty food and salt. ## Most praised reviews (10 highest-rated) ### 5/5 — Impressive *2026-05-20, version 2.4* Stress, energy and hrv tracking what I was looking for ### 5/5 — Very impressive *2026-05-12, version 2.3* I was surprised with the results which compared to other readings I’ve had. ### 5/5 — Super *2025-12-31, version 1.5* A lifesaver for checking my heartbeat and ECG on the go. Super clutch app. ### 5/5 — Quick heart rate monitor *2025-12-31, version 1.5* Most accurate heart rate monitor in the store. It catches my pulse instantly. ### 5/5 — Perfect BP Organizer *2025-12-30, version 1.5* The blood pressure log is a lifesaver. Keeps my BP history perfectly organized. ### 5/5 — Great app *2025-12-30, version 1.5* I log my BP and pulse every morning. This app makes the record-keeping so simple. ### 5/5 — Helpful heart rate app *2025-12-30, version 1.5* This app is easy to use and works well. It gives a fast and clear heart rate. I like the simple design and it is good for daily checks. Sometimes it takes a little time to read, but overall it’s helpful and reliable. ### 4/5 — Well maybe *2026-05-15, version 2.3* Very hard to switch app from old phone to new phone. Needs work ### 2/5 — Not accurate *2026-06-29, version 2.7* All this app does is take your pulse. All other data is suspect. ### 2/5 — How to check the accuracy *2026-06-01* You should provide either 2-3 days testing period of 7 days plan to check the app working --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-09-09.*