Comparison

CeDAR vs APSA Pediatric Surgery Library

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

Head to head
About

CeDAR

This app helps predict the risk and financial impact of wound complications after ventral hernia repair. It uses a mathematical equation based on patient health status to offer individualized outcomes and educational materials about hernias and treatments.

Highlights
  • Predicts postoperative wound complication risks
  • Estimates financial impact of complications
  • Provides individualized patient outcomes
  • Offers educational materials on hernias
  • Calculates risk based on user-answered questions
Features
Read full description

Hernia repairs are among the most common operations performed in the world. Historically, quality was measured almost solely by recurrence rates. Now that routine mesh use has made these repairs much more durable, wound problems after surgery are the major reason for increased cost of surgery, including the added cost of other procedures, hospital stays and clinic visits because of wound problems up to a year after hernia repair. Because of their wounds, these patients often are not able to work and lose time and money because of specialty wound care, travel, clinic visits and/or hospital stays. We believe assessing and understanding a patient's preoperative health status can significantly impact postoperative outcomes. The Carolinas Equation for Determining Associated Risks (CeDAR) predicts the risks and financial impact of wound-related problems following ventral hernia repair. The complex mathematical equation, which was calculated from data taken from patients around the world after their surgery, has been independently tested and found to be accurate and reliable. With the aid of mobile app technology, CeDAR now provides surgeons and patients with a powerful tool that can predict individualized wound outcomes after abdominal hernia surgery. Moreover, it offers patients detailed educational materials about many types of hernias and their treatments. Users simply answer eight questions about themselves, including height and weight. Based on these answers, a percentage chance of developing specific postoperative complications requiring treatment is calculated along with the corresponding cost of this treatment. These results can then be used to discuss an individual patient's risk for wound problems after surgery and what they can change to improve their odds for a good result.

About

APSA Pediatric Surgery Library

This app provides comprehensive pediatric surgery resources, including up-to-date clinical information, images, and videos. It also features a powerful search tool for medical literature, allowing quick access to abstracts, citations, and full-text articles.

Highlights
  • Pediatric Surgery NaT resource
  • Quarterly content updates
  • High-resolution images and videos
  • Advanced medical literature search
  • Links to PubMed articles
  • Custom notes and highlighting
  • Visual exploration of literature
Features
Read full description

APSA Pediatric Surgery Library contains: PEDIATRIC SURGERY NaT From presentation to procedures to long term outcomes, the Pediatric Surgery NaT resource keeps the current general surgical care of children at your fingertips. Designed for both practicing and in-training pediatric surgeons, the Pediatric Surgery NaT is updated quarterly so you’ll know what strategies, techniques and procedures are being used right now. It is written for pediatric surgeons by pediatric surgeons and contains learning objectives, images, videos and links to MOC CME and the medical literature. Participate in the NaT community of practice today by downloading this app to your mobile device or tablet so you can provide better patient care with fast access anytime, anywhere. Prime PubMed Quickly search journal articles from the PubMed database on your smartphone and tablet. Results contain abstracts, citations, and links to available full text articles that can be read on device and shared with classmates and colleagues. Additionally, Prime PubMed contains Grapherence®, an exclusive way to visually explore interrelationships and relevance in the medical literature. Features of the Pediatric Surgery Library include: • Quick-read, highly organized clinical modules and learning objectives • High-resolution images and videos • Advanced searches of the medical literature • Links to relevant PubMed articles • Full text search helps find topics fast • Custom notes and highlighting within entries • "Favorites" for bookmarking important topics Editors: Ron Hirschl, MD; David Powell, MD; John HT Waldhausen, MD Publisher: American Pediatric Surgical Association (APSA) Powered by: Unbound Medicine, Inc. How It Works: --------------------- • Install the app on your device. • Open the app, enter your APSA Pediatric Surgery Library username and password, then tap “Login.” • The latest content will be downloaded to your devices over your wireless connection.

Screenshots

CeDAR4 screens
APSA Pediatric Surgery Library4 screens

Verdict

The call

The clearest difference is monetization model: CeDAR at free against APSA Pediatric Surgery Library's free with in-app purchases. CeDAR also leads on iOS requirement (8.0 vs 15.0). APSA Pediatric Surgery Library's advantage is ratings volume (205 vs 2) and update cadence (every 8 months vs every 18 months). On price, rating, 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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for CeDAR against 4.9 for APSA Pediatric Surgery Library. That said, the two scores are not equally well evidenced: APSA Pediatric Surgery Library has 205 ratings behind it against 2, so its average is the more settled of the two.

UpkeepUpdate frequency

CeDAR ships an update every 18 months, APSA Pediatric Surgery Library every 8 months. The most recent releases landed on October 12, 2026 and October 22, 2026 respectively.

Scorecard4 real differences · 6 level
CeDAR versus APSA Pediatric Surgery Library: the parameters behind the verdict, then further details
ParameterCeDARAPSA Pediatric Surgery Library
PriceFreeFree
Rating5.0 (2 ratings) — better4.9 (205 ratings)
Positive reviews—100.0% of reviews
Number of ratings2205 — better
Update frequencyEvery 18 monthsEvery 8 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree — betterFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod, Mac — better
Requires iOS8.0 — better15.0
Further details — not scored
Size37 MB15 MB
Age rating12+17+
DeveloperCarolinas Surgical Innovation Group, LLCUnbound Medicine, Inc.

Customer experience

CeDAR

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

APSA Pediatric Surgery Library

All ratings205 ratings
Positive98.0%
Neutral0.5%
Negative1.5%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

CeDAR

No in-app purchases

None

APSA Pediatric Surgery Library

No in-app purchases

Questions

Is CeDAR free?
CeDAR is free to download, with no in-app purchases.
Is APSA Pediatric Surgery Library free?
APSA Pediatric Surgery Library is free to download, with no in-app purchases.
Which has better reviews, CeDAR or APSA Pediatric Surgery Library?
CeDAR is rated higher. CeDAR averages 5.0 out of 5 from 2 ratings, while APSA Pediatric Surgery Library averages 4.9 from 205 ratings.
Do CeDAR or APSA Pediatric Surgery Library have ads?
Neither CeDAR nor APSA Pediatric Surgery Library shows ads.
Which is updated more often, CeDAR or APSA Pediatric Surgery Library?
CeDAR ships an update every 18 months, and APSA Pediatric Surgery Library every 8 months. Most recently, CeDAR was updated on October 12, 2026 and APSA Pediatric Surgery Library on October 22, 2026.

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