Comparison

Heart Chart vs Behind the Knife

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

Head to head
About

Heart Chart

This app allows medical professionals to visually document cardiac surgery cases. Users can draw graft configurations, add procedures, and generate PDF summaries for review or sharing. It's designed for surgeons, trainees, and educators to illustrate operative concepts.

Highlights
  • Draw CABG graft configurations
  • Add associated procedures
  • Generate professional PDF case summaries
  • Save cases with subscription
  • Simple step-by-step workflow
  • Designed for clinical education
Features
Read full description

HeartChart is a visual tool for illustrating cardiac surgery cases on iPhone and iPad. Draw CABG graft configurations on a heart diagram, add associated procedures, and generate clean PDF case summaries for review or sharing. Designed for surgeons, trainees, and educators, HeartChart provides a fast way to document operative-style coronary anatomy and procedural details in a clear visual format. Key Features Draw CABG grafts Illustrate bypass graft configuration directly on a heart diagram to create a quick visual summary of the case. Add associated procedures Document additional non-CABG procedures such as valve surgery or other operative details. Generate professional PDFs Export a clean case summary as a PDF for sharing, review, or documentation. Save cases With an active subscription, cases can be saved for later reference and retrieval. Simple workflow Create a case, add procedural details, and generate a shareable PDF in just a few steps. Designed for Clinical Education HeartChart is intended to help visualize cardiac surgical procedures and illustrate operative concepts. It can be useful for: • surgical education • operative planning discussions • case review • teaching conferences Important Notice HeartChart is a visualization and documentation tool only. It does not provide medical advice, diagnosis, or treatment recommendations and should not be used for clinical decision-making. Users are responsible for ensuring that any information entered into the app complies with applicable patient privacy and confidentiality requirements. Subscription HeartChart offers an optional yearly auto-renewing subscription that enables saving cases within the app. Subscriptions are managed through your Apple App Store account and may be canceled at any time through your device’s subscription settings. Support Support information is available at: https://heart-chart.com/support

About

Behind the Knife

This platform offers surgical education with high-yield topics and interviews with field leaders. It provides timely, relevant, and engaging content to help users succeed in their medical studies and careers.

Highlights
  • Surgical education platform
  • High-yield educational topics
  • Interviews with field leaders
  • Timely and relevant content
  • Engaging learning experience
Read full description

Behind the Knife is the world’s #1 surgical education platform. From high-yield educational topics to interviews with leaders in the field, Behind the Knife delivers the information you need to know. Enjoy timely, relevant, and engaging content designed to help you DOMINATE THE DAY!

Screenshots

Heart Chart4 screens
Behind the Knife4 screens

Verdict

The call

The clearest difference is rating: Heart Chart at 4.5 against Behind the Knife's 4.0. Heart Chart also leads on update cadence (every 3 days vs every 5 weeks) and review sentiment (75% vs 58%). Behind the Knife's advantage is in-app purchases (none vs 1) and ratings volume (19 vs 2). 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. Heart Chart sells 1 in-app purchase, starting at $2.99 per year. Behind the Knife asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Heart Chart holds the better App Store score, 4.5 against 4.0. That said, the two scores are not equally well evidenced: Behind the Knife has 19 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 75% of Heart Chart's written reviews are positive against 58% of Behind the Knife's.

UpkeepUpdate frequency

Heart Chart ships an update every 3 days, Behind the Knife every 5 weeks. The most recent releases landed on October 2, 2026 and October 7, 2026 respectively.

Scorecard7 real differences · 3 level
Heart Chart versus Behind the Knife: the parameters behind the verdict, then further details
ParameterHeart ChartBehind the Knife
PriceFreeFree
Rating4.5 (2 ratings) — better4.0 (19 ratings)
Positive reviews75.0% of reviews — better58.3% of reviews
Number of ratings219 — better
Update frequencyEvery 3 days — betterEvery 5 weeks
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemiumFree — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS26.015.0 — better
Further details — not scored
Size11 MB168 MB
Age rating4+17+
DeveloperBender Apps, LLCBehind the Knife

Customer experience

Heart Chart

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews4 reviews
Positive75.0%
Neutral25.0%
Negative0.0%

Behind the Knife

All ratings19 ratings
Positive73.7%
Neutral5.3%
Negative21.1%
Written reviews12 reviews
Positive58.3%
Neutral8.3%
Negative33.3%

In-app purchases

1 purchases

Heart Chart

Subscriptions1
  • HeartChart Premium$2.991 Year
None

Behind the Knife

No in-app purchases

Questions

Is Heart Chart free?
Heart Chart is free to download, with in-app purchases available.
Is Behind the Knife free?
Behind the Knife is free to download, with no in-app purchases.
Which has better reviews, Heart Chart or Behind the Knife?
Heart Chart is rated higher. Heart Chart averages 4.5 out of 5 from 2 ratings, while Behind the Knife averages 4.0 from 19 ratings.
Do Heart Chart or Behind the Knife have ads?
Neither Heart Chart nor Behind the Knife shows ads.
Which is updated more often, Heart Chart or Behind the Knife?
Heart Chart ships an update every 3 days, and Behind the Knife every 5 weeks. Most recently, Heart Chart was updated on October 2, 2026 and Behind the Knife on October 7, 2026.

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