CeQOL vs Behind the Knife
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CeQOL
This app helps predict the likelihood of chronic pain after inguinal hernia repair surgery. It uses a patient's personal information and quality-of-life status to provide an individualized outcome prediction.
- Individualized QOL outcome prediction
- Chronic pain incidence prediction
- 18 simple user questions
- Educational materials on hernias
- Derived from global patient data
- Independently tested accuracy
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Hernia repairs are the most common operation performed worldwide. For many years, the surgical measure of success was almost solely considered to be the lack of hernia recurrence. Today, better defined surgical techniques and the use of mesh to repair a hernia have substantially decreased the incidence of surgical failure. Given this, we believe that the next phase in hernia surgery is to use a patient’s quality-of-life (QOL) as the major measure of operative success. The Carolinas Equation for Quality of Life (CeQOL) predicts the incidence of chronic pain following inguinal hernia repair in males. Male users simply answer 18 simple questions about themselves, their hernia, and their current QOL status as it relates to their hernia, and a percentage chance of having some form of discomfort 1 year following surgery is produced and interpreted. The complex mathematical equation, which was derived from closely following patients from around the world after their surgery, has been independently tested and found to be accurate and reliable. Our ultimate goal is to use mobile app technology to provide surgeons and patients with a powerful educational tool that can predict individualized QOL outcomes after inguinal hernia surgery and offer patients extensive educational materials concerning many types of hernias and their treatments.
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.
- High-yield educational topics
- Interviews with leaders
- Timely and relevant content
- Engaging learning experience
- Surgical education focus
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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
Verdict
The clearest difference is review sentiment: CeQOL at 100% against Behind the Knife's 58%. CeQOL also leads on rating (4.5 vs 4.0) and iOS requirement (8.0 vs 15.0). Behind the Knife's advantage is update cadence (monthly vs every 29 months) and ratings volume (20 vs 2). On price, ads, in-app purchases and monetization model 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
CeQOL 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 20 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 100% of CeQOL's written reviews are positive against 58% of Behind the Knife's.
CeQOL ships an update every 29 months, Behind the Knife monthly. The most recent releases landed on November 1, 2026 and November 7, 2026 respectively.
| Parameter | CeQOL | Behind the Knife |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (2 ratings) — better | 4.0 (20 ratings) |
| Positive reviews | 100.0% of reviews — better | 58.3% of reviews |
| Number of ratings | 2 | 20 — better |
| Update frequency | Every 29 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 8.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 5 MB | 168 MB |
| Age rating | 12+ | 17+ |
| Developer | Carolinas Surgical Innovation Group, LLC | Behind the Knife LLC |
Customer experience
CeQOL
Behind the Knife
In-app purchases
CeQOL
No in-app purchases
Behind the Knife
No in-app purchases









