Comparison

BSA Calculator vs Redo TAV

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

Head to head
About

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.

Highlights
  • Body Surface Area calculation
  • Metric and Imperial units
  • Multiple BSA equations
  • User-friendly interface
Features
Read full description

Body Surface Area(BSA) Calculator. Metric and Imperial units are available. Several BSA equations are available.

About

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.

Highlights
  • 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
Features
Read full description

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

BSA Calculator4 screens
Redo TAV4 screens

Verdict

The call

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

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

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.

UpkeepUpdate frequency

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.

Scorecard4 real differences · 5 level
BSA Calculator versus Redo TAV: the parameters behind the verdict, then further details
ParameterBSA CalculatorRedo TAV
PriceFreeFree
Rating4.5 (2 ratings)5.0 (2 ratings) — better
Number of ratings22
Update frequencyEvery 23 monthsEvery 5 months — better
AdsYesNo — better
In-app purchasesNoNo
MonetizationAd-supportedFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS14.0 — better15.1
Further details — not scored
Size6 MB35 MB
Age rating12+12+
DeveloperYoshinori HorataKRUTSCH

Customer experience

BSA Calculator

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

Redo TAV

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

In-app purchases

None

BSA Calculator

No in-app purchases

None

Redo TAV

No in-app purchases

Questions

Is BSA Calculator free?
BSA Calculator is free to download, with no in-app purchases.
Is Redo TAV free?
Redo TAV is free to download, with no in-app purchases.
Which has better reviews, BSA Calculator or Redo TAV?
Redo TAV is rated higher. BSA Calculator averages 4.5 out of 5 from 2 ratings, while Redo TAV averages 5.0 from 2 ratings.
Do BSA Calculator or Redo TAV have ads?
BSA Calculator shows ads; Redo TAV does not.
Which is updated more often, BSA Calculator or Redo TAV?
BSA Calculator ships an update every 23 months, and Redo TAV every 5 months. Most recently, BSA Calculator was updated on November 2, 2026 and Redo TAV on November 3, 2026.

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