BSA Calculator vs Redo TAV
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
BSA Calculator
Calculate Body Surface Area (BSA) using metric or imperial units. Offers multiple BSA equations for accurate medical calculations. Essential for healthcare professionals and researchers.
- Body Surface Area calculation
- Metric and Imperial units
- Multiple BSA equations
- User-friendly interface
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Body Surface Area(BSA) Calculator. Metric and Imperial units are available. Several BSA equations are available.
Redo TAV
This app offers systematic CT analysis for planning transcatheter aortic valve replacement procedures. It provides procedural guidance, including implant height and depth information, and allows users to generate visual reports of procedure data.
- Systematic CT analysis for Redo-TAV procedures
- Valve CT appearance and dimensions
- Step-by-step assessment guidance
- Implant height and depth information
- Procedural video clips
- Procedure data and outcome reporting
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The Redo TAV app provides guidelines for assessing the suitability of a transcatheter aortic valve for Redo-TAV procedures using systematic CT analysis (Redo-TAV CT planning) and provides procedural guidance (Procedural Guide) for the procedure. The algorithm behind the app has been derived from extensive research of published materials on Redo-TAV procedures, including bench and CT simulation work. - Redo-TAV CT Planning After the user selects a particular valve type and size, Redo-TAV provides them with the valve's CT appearance and dimensions. Once the second valve is chosen, the app guides the user through different steps of assessment and collates the information. Using systematic step-by-step assessment, the app ensures that no aspect of assessment is missed. The app does not make recommendations to the user but simply guides them to the next step based on their choice. - Procedural Guide Based on the first valve type and size in the patient and the second valve chosen by the user, the app provides information on the height and depth of implant. When available, the app also includes a small clip of actual implant. - Procedure Data and Outcome The user is able to input important data points if desired to create a visual report.
Screenshots
Verdict
The clearest difference is rating: Redo TAV at 5.0 against BSA Calculator's 4.5. Redo TAV also leads on ads (none vs shown) and update cadence (every 5 months vs every 23 months). On price, ratings volume, in-app purchases 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
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Redo TAV holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 2 and 2 respectively.
BSA Calculator ships an update every 23 months, Redo TAV every 5 months. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.
| Parameter | BSA Calculator | Redo TAV |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (2 ratings) | 5.0 (2 ratings) — better |
| Number of ratings | 2 | 2 |
| Update frequency | Every 23 months | Every 5 months — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | Free — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 14.0 — better | 15.1 |
| Further details — not scored | ||
| Size | 6 MB | 35 MB |
| Age rating | 12+ | 12+ |
| Developer | Yoshinori Horata | KRUTSCH |
Customer experience
BSA Calculator
Redo TAV
In-app purchases
BSA Calculator
No in-app purchases
Redo TAV
No in-app purchases
Questions
Is BSA Calculator free?
Is Redo TAV free?
Which has better reviews, BSA Calculator or Redo TAV?
Do BSA Calculator or Redo TAV have ads?
Which is updated more often, BSA Calculator or Redo TAV?
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