Comparison

Krok 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

Krok

Prepare for KROK exams with a comprehensive testing application. Access a vast library of questions across various categories and topics to enhance your knowledge. Track your progress with interactive tests and assess your understanding effectively.

Highlights
  • Wide selection of KROK exam tests
  • Large number of questions
  • Category and topic selection
  • Interactive tests
  • Progress tracking
  • Knowledge assessment
Features
Read full description

Prepare for Ukraine’s KROK medical licensing exams with Krok: Testing. Practice KROK 1, KROK 2, KROK 3, and KROK M using tests and booklets. Review questions in study mode, search for topics, track progress, and access downloaded tests offline. Features: • KROK exam tests and booklets; • quiz mode with question navigation; • study mode for reviewing questions; • test and question search; • access downloaded tests offline; • progress statistics and language filtering. Study whenever it works for you and prepare for your exam with confidence. Terms of Service: [https://www.apple.com/legal/internet-services/itunes/dev/stdeula/](https://www.apple.com/legal/internet-services/itunes/dev/stdeula/)

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

Krok4 screens
ECG Trainer3 screens

Verdict

The call

Krok and ECG Trainer both sit at 1.0 stars, but that hides the real split: 57% of Krok's written reviews are positive against 0% of ECG Trainer's. Krok also leads on iOS requirement (16.0 vs 18.0). ECG Trainer's advantage is monetization model (free vs free with in-app purchases). On price, rating, ratings volume and update cadence 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. Krok sells 3 in-app purchases, starting at $1.99 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

On the App Store both sit at effectively the same score — 1.0 for Krok against 1.0 for ECG Trainer. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews are what separate them: 57% of Krok's written reviews are positive against 0% of ECG Trainer's.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 3 weeks. The most recent releases landed on September 23, 2026 and September 22, 2026 respectively.

Scorecard3 real differences · 7 level
Krok versus ECG Trainer: the parameters behind the verdict, then further details
ParameterKrokECG Trainer
PriceFreeFree
Rating1.0 (1 ratings)1.0 (1 ratings)
Positive reviews57.1% of reviews — better0.0% of reviews
Number of ratings11
Update frequencyEvery 3 weeksEvery 3 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad — betteriPhone
Requires iOS16.0 — better18.0
Further details — not scored
Size24 MB39 MB
Age rating4+17+
DeveloperAnatoly SorochanOleksandr Galaguta

Customer experience

Krok

All ratings1 ratings
Positive0.0%
Neutral0.0%
Negative100.0%
Written reviews14 reviews
Positive57.1%
Neutral14.3%
Negative28.6%

ECG Trainer

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

In-app purchases

3 purchases

Krok

Subscriptions3
  • 1 Month3 Days trial$1.991 Month
  • 3 months3 Days trial$4.993 Months
  • 6 months3 Days trial$7.996 Months
1 purchases

ECG Trainer

One-time1
  • Full Version$1.99

Questions

Is Krok free?
Krok 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, Krok or ECG Trainer?
Krok and ECG Trainer are both rated 1.0 out of 5 on the App Store, from 1 and 1 ratings respectively.
Do Krok or ECG Trainer have ads?
Neither Krok nor ECG Trainer shows ads.
Which is updated more often, Krok or ECG Trainer?
Krok ships an update every 3 weeks, and ECG Trainer every 3 weeks. Most recently, Krok was updated on September 23, 2026 and ECG Trainer on September 22, 2026.

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