Comparison

iPacemaker Device vs myMerlin™

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

Head to head
About

iPacemaker Device

Access a vast database of implantable cardiac devices, including pacemakers and defibrillators. Get detailed technical specifications, connector information, advisories, and MRI compatibility checks. Compare devices and explore algorithms to aid in selection and management.

Highlights
  • Extensive device database
  • Detailed technical datasheets
  • Connector and tool information
  • Advisories and safety warnings
  • Multibrand MRI compatibility evaluation
  • Algorithm descriptions
  • Side-by-side device comparison
Features
Currently charting
Read full description

iPacemaker Device is an independent, multibrand technical and educational reference for electrophysiologists, hospital device technicians, and medical-device company specialists working with cardiac implantable electronic devices. Explore information on more than 7,000 pacemakers, ICDs, CRT devices, cardiac monitors, and leads from 60 manufacturers. TECHNICAL DATA Review device specifications, physical characteristics, dimensions, diagnostic features, and programming parameters. CONNECTOR HEADERS Examine connector layouts, port types, lead configurations, and documented tool specifications. Find device records with compatible connector-header characteristics and explore CSP configurations. MANUFACTURER ADVISORIES Access technical notes and safety communications included in the database and organized by product. MRI DOCUMENTATION Explore manufacturer-published MRI conditions for hypothetical device-and-lead combinations. This educational reference does not determine MRI eligibility for an individual patient or implanted system. ALGORITHMS Review more than 70 manufacturer-specific algorithms organized by manufacturer and technical or clinical scope. ANALYTICS Explore descriptive charts based on information contained in the dataset, including device longevity and survival data. Analytics do not predict the performance of an individual implanted device or recommend device selection. COMPARE Review specifications, programming options, longevity charts, and survival curves across multiple device records without generating treatment or device recommendations. Some content and features require a subscription. iPacemaker Device is intended solely for professional education and technical reference. It is not intended for diagnosis, patient-specific assessment, treatment selection, device programming, MRI eligibility, or emergency use. Always consult current manufacturer documentation and applicable clinical and institutional protocols. iPacemaker is independent and is not affiliated with, sponsored by, or endorsed by any cardiac-device manufacturer. Company names, product names, and trademarks belong to their respective owners.

About

myMerlin™

This application securely transmits heart rhythm data from an insertable cardiac monitor to your doctor. It allows you to log symptoms, review past transmissions, and stay connected with your healthcare provider for better heart rhythm monitoring.

Highlights
  • Continuous heart rhythm monitoring
  • Automatic event recording
  • Symptomatic event logging
  • View past and upcoming transmissions
  • Secure data transmission to doctor
  • Remote monitoring setting updates (device dependent)
Read full description

The Abbott Insertable Cardiac Monitor (ICM) is a slim profile device which continuously monitors your heart rhythm and automatically records events of interest as configured by your doctor. The myMerlin™ app securely and proactively transmits information per a schedule set by your doctor. The app’s intuitive user-friendly interface allows you to record symptomatic events, view past and upcoming transmissions and helps you stay connected with your doctor. This makes it easier for your healthcare provider to obtain information about your heart’s rhythm. Some ICM device models include the ability for the device monitoring settings to be updated remotely by a healthcare provider. This app will only function once paired with an Abbott Insertable Cardiac Monitor, an implantable device available via prescription only. THE APP DOES NOT PROVIDE ANY HEALTH SERVICES OR MEDICAL ADVICE. IF YOU SUSPECT YOU MAY HAVE A MEDICAL EMERGENCY, YOU SHOULD SEEK IMMEDIATE MEDICAL ATTENTION FROM LOCAL EMERGENCY SERVICES OR YOUR HEALTHCARE PROVIDER.

Screenshots

iPacemaker Device4 screens
myMerlin™4 screens

Verdict

The call

The clearest difference is rating: iPacemaker Device at 4.7 against myMerlin™'s 2.7. iPacemaker Device also leads on update cadence (every 4 days vs every 12 months) and chart position (#55 vs unranked). myMerlin™'s advantage is in-app purchases (none vs 7) and iOS requirement (15.0 vs 17.6). 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. iPacemaker Device sells 7 in-app purchases, starting at $9.99 per month. myMerlin™ asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

iPacemaker Device holds the better App Store score, 4.7 against 2.7. That said, the two scores are not equally well evidenced: iPacemaker Device has 365 ratings behind it against 71, so its average is the more settled of the two. Written reviews point the same way: 28% of iPacemaker Device's written reviews are positive against 17% of myMerlin™'s.

UpkeepUpdate frequency

iPacemaker Device ships an update every 4 days, myMerlin™ every 12 months. The most recent releases landed on October 19, 2026 and October 15, 2026 respectively.

Scorecard8 real differences · 3 level
iPacemaker Device versus myMerlin™: the parameters behind the verdict, then further details
ParameteriPacemaker DevicemyMerlin™
PriceFreeFree
Rating4.7 (365 ratings) — better2.7 (71 ratings)
Positive reviews27.9% of reviews — better17.0% of reviews
Number of ratings365 — better71
Update frequencyEvery 4 days — betterEvery 12 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
Best chart rank#55 — better—
DevicesiPhone, iPadiPhone, iPod
Requires iOS17.615.0 — better
Further details — not scored
Size218 MB53 MB
Age rating4+17+
DeveloperIPACEMAKER S.R.L.Abbott

Customer experience

iPacemaker Device

All ratings365 ratings
Positive92.1%
Neutral1.6%
Negative6.3%
Written reviews43 reviews
Positive27.9%
Neutral9.3%
Negative62.8%

myMerlin™

All ratings71 ratings
Positive39.4%
Neutral4.2%
Negative56.3%
Written reviews94 reviews
Positive17.0%
Neutral9.6%
Negative73.4%

Bugs and requests

iPacemaker Device

Reported bugs

18 issues
  • App keeps refreshing, cannot open
  • App cannot be opened
  • App enters interface and stops, cannot open
  • App has not worked for years
  • App hasn't worked for days
Show 13 more
  • App requires subscription after purchase
  • App requires subscription after update
  • App is not working
  • App is useless without subscription
  • App freezes and needs reboot
  • App seems to hang when opening
  • App does not open
  • App cannot be used unless you pay a subscription
  • App changed to subscription model
  • App not updated
  • App not updated for newer devices
  • Some newer devices cannot be found
  • Some leads labeled MRI conditional are found to be non-MRI

Requested features

6 requests
  • More equitable evaluation of company representation
  • Fix app hanging/slow opening
  • Update for newer devices
  • Grandfather in lifetime members
  • Refund original charge for lifetime members
Show 1 more
  • Remove disclaimer that opens every time

myMerlin™

Not enough reviews yet to summarise bugs or requests.

In-app purchases

7 purchases

iPacemaker Device

Subscriptions7
  • 1 month subscription REGULAR$9.991 Month
  • 3 Months Subscription$49.993 Months
  • 12 months subscription REGULAR7 Days trial$49.991 Year
Show 4 more
  • 6 Months Subscription$59.996 Months
  • 12 Months Subscription$99.991 Year
  • 12 months subscription PREMIUM$109.991 Year
  • 12 months subscription PREMIUM7 Days trial$109.991 Year
None

myMerlin™

No in-app purchases

Questions

Is iPacemaker Device free?
iPacemaker Device is free to download, with in-app purchases available.
Is myMerlin™ free?
myMerlin™ is free to download, with no in-app purchases.
Which has better reviews, iPacemaker Device or myMerlin™?
iPacemaker Device is rated higher. iPacemaker Device averages 4.7 out of 5 from 365 ratings, while myMerlin™ averages 2.7 from 71 ratings.
Do iPacemaker Device or myMerlin™ have ads?
Neither iPacemaker Device nor myMerlin™ shows ads.
Which is updated more often, iPacemaker Device or myMerlin™?
iPacemaker Device ships an update every 4 days, and myMerlin™ every 12 months. Most recently, iPacemaker Device was updated on October 19, 2026 and myMerlin™ on October 15, 2026.

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