BladderSafe vs Behind the Knife
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BladderSafe
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Note: BladderSafe is intended for use by medical professionals. Non-medical users of our app are reminded to seek a doctor’s advice before making any medical decisions that may be informed by the guidelines in this app. BladderSafe includes a decision tree based on published research regarding the appropriate use of urinary catheters for a variety of medical and surgical situations. This research was completed by the Patient Safety Enhancement Program team at the University of Michigan. The app includes guidelines for evidence-based practices from the Ann Arbor Criteria (DOI:10.7326/M14-1304) and the Michigan Appropriate Perioperative Criteria (DOI:10.1136/bmjqs-2018-008025).
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.
- Surgical education platform
- High-yield educational topics
- Interviews with field leaders
- Timely and relevant content
- Engaging learning experience
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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 iOS requirement: BladderSafe at 13.0 against Behind the Knife's 15.0. 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
BladderSafe ships an update every 2 months, Behind the Knife every 5 weeks. The most recent releases landed on September 16, 2026 and September 19, 2026 respectively.
| Parameter | BladderSafe | Behind the Knife |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.0 (19 ratings) — better |
| Positive reviews | — | 58.3% of reviews |
| Number of ratings | — | 19 — better |
| Update frequency | Every 2 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 15.0 |
| Further details — not scored | ||
| Size | 18 MB | 168 MB |
| Age rating | 17+ | 17+ |
| Developer | The University of Michigan | Behind the Knife |
In-app purchases
BladderSafe
No in-app purchases
Behind the Knife
No in-app purchases
Questions
Is BladderSafe free?
Is Behind the Knife free?
Do BladderSafe or Behind the Knife have ads?
Which is updated more often, BladderSafe or Behind the Knife?
Other comparisons
