Comparison

Multi vs ECG Tracker+ EKG Reader HRV

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Multi

Features
Read full description

The Multi-ECG app allows - in combination with the CardioScout Multi-ECG recorder - the first mobile resting ECG recording with the iPod, iPad and iPhone. The derived ECG data are sent online via Bluetooth from the ECG recorder to the iOS device and displayed on the screen. The ECG data can be stored locally or – as an option - on a server. The server stored data can be visualized and handled with any web browser over a secure connection. In addition, the server stored data can be downloaded and processed into our VMX00 resting ECG software. If you are using our Cardio cout Multi-ECG as a holter the Multi-ECG app can be used for the startup online control. The app further allows the manual collection and graphical presentation of weight, blood pressure and glucose levels. - mobile recording of resting ECG with the iPod, iPad and iPhone - mobile online control system for operating the Holter - storing the ECG data - optional storage on a server (10 Euro / month) - optional download in the resting ECG software VMX00 - detection of weight, blood pressure and glucose values

About

ECG Tracker+ EKG Reader HRV

Analyze ECG recordings from compatible health apps on a calibrated grid. Measure key metrics like HRV and QTc, track trends over time, and export detailed PDF reports. All processing is done on-device for enhanced privacy.

Highlights
  • Calibrated waveform grid review
  • HRV, QTc, QRS duration measurement
  • Trend tracking over time
  • Notes and symptom tagging
  • Shareable PDF report export
  • On-device processing
Features
Read full description

Your Apple Watch ECGs, analyzed on your iPhone by models we trained ourselves. No cloud. No accounts. No data leaves the device. ECG Tracker+ imports your ECG recordings from the Health app and gives you a deeper read than the watch alone — sharper QT measurements, clearer rhythm context, and findings highlighted right on the waveform. ——————————— OUR OWN ON-DEVICE ECG MODELS We spent weeks training a family of in-house ECG models on large, expert-annotated public datasets. Tuned to run fully on-device by harnessing the power of Apple Silicon, they bring sharper P, Q, R, S, T placement and cleaner QT measurements — especially on noisy Apple Watch traces where the previous pipeline used to back off. NEW EVENTS WE NOW FLAG • Bigeminy and trigeminy — repeating premature-beat patterns • Possible VT run — three or more consecutive premature ventricular beats • Wide QRS / possible bundle branch block — when QRS duration ≥120 ms • T-wave inversion — negative T-wave polarity on the representative beat Every finding appears on the library card and is highlighted directly on the waveform. MEASUREMENTS THAT MATTER • HRV — rMSSD and SDNN, with trend comparisons over weeks and months • QT and QTc — multiple correction formulas, manual override when you need it • QRS duration, PR interval, RR interval • Heart rate ranges and signal quality scoring TRENDS YOU CAN ACTUALLY READ Compare the last 30 days against the previous period. Spot drifts in heart rate, HRV, and QTc at a glance. Tap any data point to jump straight to that recording. EVERYTHING STAYS ON YOUR IPHONE All analysis runs on-device. No cloud, no servers, no accounts. Your ECGs never leave your iPhone. Delete the app and the data goes with it. EXPORT CLEAN PDF REPORTS Share a clinically-formatted PDF of any recording with your doctor — waveform, measurements, notes, and symptom tags all in one document. ——————————— Download ECG Tracker+ and get more out of every ECG your Apple Watch records. ECG Tracker+ is an informational measurement tool and is not a medical device. It does not provide medical advice, diagnosis, or treatment. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Multi4 screens
ECG Tracker+ EKG Reader HRV4 screens

Verdict

The call

The clearest difference is in-app purchases: Multi at none against ECG Tracker+ EKG Reader HRV's 5. Multi also leads on iOS requirement (8.2 vs 18.0). ECG Tracker+ EKG Reader HRV's advantage is update cadence (weekly vs every 3 months). On price, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. ECG Tracker+ EKG Reader HRV sells 3 in-app purchases, starting at $7.99 per month. Multi asks for nothing beyond the download.

UpkeepUpdate frequency

Multi ships an update every 3 months, ECG Tracker+ EKG Reader HRV weekly. The most recent releases landed on September 13, 2026 and September 10, 2026 respectively.

Scorecard3 real differences · 7 level
Multi versus ECG Tracker+ EKG Reader HRV: the parameters behind the verdict, then further details
ParameterMultiECG Tracker+ EKG Reader HRV
PriceFreeFree
Rating—3.6 (19 ratings) — better
Positive reviews—40.0% of reviews
Number of ratings—19 — better
Update frequencyEvery 3 monthsWeekly — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhone, iPad, iPodiPhone, iPad, Apple Watch
Requires iOS8.2 — better18.0
Further details — not scored
Size11 MB101 MB
Age rating17+12+
DeveloperSarah RichterArtur Teodorowicz

In-app purchases

None

Multi

No in-app purchases

3 purchases

ECG Tracker+ EKG Reader HRV

Subscriptions2
  • ECG Tracker+ Pro Monthly2 variants$7.991 Month
  • ECG Tracker+ Pro Yearly2 variants$59.991 Year
One-time1
  • ECG Tracker+ Pro Lifetime$89.99

Questions

Is Multi free?
Multi is free to download, with no in-app purchases.
Is ECG Tracker+ EKG Reader HRV free?
ECG Tracker+ EKG Reader HRV is free to download, with in-app purchases available.
Do Multi or ECG Tracker+ EKG Reader HRV have ads?
Neither Multi nor ECG Tracker+ EKG Reader HRV shows ads.
Which is updated more often, Multi or ECG Tracker+ EKG Reader HRV?
Multi ships an update every 3 months, and ECG Tracker+ EKG Reader HRV weekly. Most recently, Multi was updated on September 13, 2026 and ECG Tracker+ EKG Reader HRV on September 10, 2026.

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