Comparison

Introvert vs ECG Trainer

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

Head to head
About

Introvert

Access concise, 20-minute lectures summarizing books and studies on diverse topics. Earn certificates, track progress, and listen offline or in the background. Join a global community focused on self-growth.

Highlights
  • 20-minute lecture summaries
  • 500+ book summaries
  • 13 diverse topics
  • Certificates of completion
  • Progress tracking and ratings
  • Offline listening
  • Background playback
Read full description

Self-development in any topic in 20 minutes. We know you don't have time to read this text. Just like specialized articles, 500+ page books, and lengthy studies. OUR COURSES Courses summarize hundreds of books and save you years of college into bite-sized 20-min lectures. Listen to them on the go, in the background — whenever you want. 13 TOPICS: from the evolution of anime to the psychology of leadership, we've got something for everyone! MOTIVATING SELF-GROWTH We award you certificates for each course, show your progress and conduct ratings. AUTHORS ARE PROS Our speakers pack their vast expertise into concise lectures to make the courses efficient yet engaging. ALWAYS AT HAND watch lectures on any device and even with no connection — just download them, and there you go! BACKGROUND PLAY Courses can work like podcasts or audiobooks. Listen to them on the go, during lunch, or as you do your chores. The nerdy Introvert community celebrates more than 300,000 users around the world. Join in — let’s grow together! • User Agreement and Terms of Use: https://artforintrovert.com/privacy_policy • Subscription policy: https://artforintrovert.com/subscriptionpolicy • License terms - https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ • Contest rules: https://artforintrovert.com/universal-rules

About

ECG Trainer

This app offers an interactive way to practice recognizing ECG patterns using real cardiograms. It provides diagnostic criteria and flexible training settings to help users master ECG interpretation for educational purposes.

Highlights
  • Real ECG examples
  • Diagnostic criteria explanations
  • Accessible pathology descriptions
  • Flexible training configurations
  • Focus on ECG signs
Features
Read full description

ECG Trainer is an interactive application for those who want to hone their ECG pattern recognition skills to automaticity.

 What’s inside: 
• Real ECGs: All images were transferred 1:1 from actual cardiograms
 • Diagnostic criteria: Each ECG image is accompanied by a description of the pathology in accessible language and its clear ECG signs
 • Flexible training settings: The trainer can be configured to display specific groups of pathologies

 Who this application may be most useful for:
 • Medical students
 • EMS paramedics 
• Medical interns 

IMPORTANT: This application is an educational simulator and is intended exclusively for educational use by medical students and specialists. It does not provide medical consultations, does not establish diagnoses, and is not a guide for treatment. Only certified medical professionals with the appropriate level of qualification have the right to diagnose and prescribe treatment.

Screenshots

Introvert4 screens
ECG Trainer3 screens

Verdict

The call

The clearest difference is review sentiment: Introvert at 48% against ECG Trainer's 0%. Introvert also leads on rating (4.7 vs 1.0) and ratings volume (892 vs 1). ECG Trainer's advantage is monetization model (free vs free with in-app purchases). On price, update cadence, ads and in-app purchases 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. Introvert sells 10 in-app purchases, starting at $6.99 per month and ECG Trainer sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Introvert holds the better App Store score, 4.7 against 1.0. That said, the two scores are not equally well evidenced: Introvert has 892 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 48% of Introvert's written reviews are positive against 0% of ECG Trainer's.

UpkeepUpdate frequency

Introvert ships an update every 11 days, ECG Trainer every 3 weeks. The most recent releases landed on November 3, 2026 and October 31, 2026 respectively.

Scorecard4 real differences · 6 level
Introvert versus ECG Trainer: the parameters behind the verdict, then further details
ParameterIntrovertECG Trainer
PriceFreeFree
Rating4.7 (892 ratings) — better1.0 (1 ratings)
Positive reviews47.9% of reviews — better0.0% of reviews
Number of ratings892 — better1
Update frequencyEvery 11 days — betterEvery 3 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad — betteriPhone
Requires iOS17.0 — better18.0
Further details — not scored
Size488 MB39 MB
Age rating4+17+
DeveloperArtIntrovert LLCOleksandr Galaguta

Customer experience

Introvert

All ratings892 ratings
Positive93.2%
Neutral1.7%
Negative5.2%
Written reviews334 reviews
Positive47.9%
Neutral8.7%
Negative43.4%

ECG Trainer

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Bugs and requests

Introvert

Reported bugs

5 issues
  • White screen issues
  • Login and registration problems
  • Inconsistent progress tracking
  • Subscription billing errors
  • Compatibility issues on older devices

Requested features

5 requests
  • Option to adjust text size
  • Improved offline capabilities
  • Seamless integration between app and website
  • More personalization options
  • Subtitles and transcripts for lectures

ECG Trainer

Not enough reviews yet to summarise bugs or requests.

In-app purchases

10 purchases

Introvert

Subscriptions4
  • Тариф 1 месяц7 Days trial$6.991 Month
  • Monthly rate7 Days trial$6.991 Month
  • 1 month subscription7 Days trial$6.991 Month
Show 1 more
  • 1 year subscription7 Days trial$49.991 Year
One-time6
  • Лекция$0.99
  • Лекция$4.99
  • Видеолекция$9.99
Show 3 more
  • Профильный курс$42.99
  • Профильный курс$49.99
  • Профильный курс$54.99
1 purchases

ECG Trainer

One-time1
  • Full Version$1.99

Questions

Is Introvert free?
Introvert is free to download, with in-app purchases available.
Is ECG Trainer free?
ECG Trainer is free to download, with in-app purchases available.
Which has better reviews, Introvert or ECG Trainer?
Introvert is rated higher. Introvert averages 4.7 out of 5 from 892 ratings, while ECG Trainer averages 1.0 from 1 ratings.
Do Introvert or ECG Trainer have ads?
Neither Introvert nor ECG Trainer shows ads.
Which is updated more often, Introvert or ECG Trainer?
Introvert ships an update every 11 days, and ECG Trainer every 3 weeks. Most recently, Introvert was updated on November 3, 2026 and ECG Trainer on October 31, 2026.

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