Comparison

RBCX Calculation Tool vs CTCAE 6 Pro

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

Head to head
About

RBCX Calculation Tool

This medical tool assists healthcare professionals in estimating the required replacement fluid volume for red blood cell exchange procedures on the Spectra Optia system. It calculates volumes based on patient and fluid data to achieve target Hct and FCR, and can suggest custom primes.

Highlights
  • Estimate replacement fluid volume
  • Calculate target Hct and FCR
  • Determine custom prime recommendation
  • Uses patient and fluid data
  • Supports Spectra Optia system
Features
Read full description

The Spectra Optia® Apheresis System RBCX Calculation Tool is intended to help medical professionals who are responsible for prescribing and performing red blood cell exchange (RBCX) procedures to estimate the volume of replacement fluid required to perform a procedure on the Spectra Optia system. Using the same patient data and the same fluid data that is entered on the Spectra Optia system, the RBCX Calculation Tool calculates and displays the estimated volume of replacement fluid required to achieve the target Hct and FCR. It can also determine whether a custom prime is recommended. While the tool is intended to help prepare for a procedure, it is not intended to be used for making medical decisions. Use of the Spectra Optia® Apheresis System RBCX Calculation Tool on iOS requires iOS version 14.0 or above. For more information about the tool, see the About page.

About

CTCAE 6 Pro

Easily review and annotate medical toxicity criteria. Bookmark adverse events, search keywords, and organize entries chronologically. Offers local data storage and optional premium features for advanced note-taking and data export.

Highlights
  • Quick CTCAE 6.0 content access
  • Unlimited adverse event bookmarking
  • Keyword search with highlighting
  • Local data storage
  • Version comparison (5.0 ⇄ 6.0)
  • Smart notes and timeline management
  • Spreadsheet to custom list app conversion
Features
Read full description

CTCAE 6 Pro helps you review and take notes on CTCAE content with ease. It is not intended for diagnosis, clinical decisions, or treatment planning. Standard Features: • Quick CTCAE Access: Browse CTCAE 6.0 content with ease • Unlimited Flags: Bookmark AEs without limits • Search with Highlighting: Easily spot keywords in context • Local Data Storage: Keep your data secure and private on your device Premium Features (Subscription Users): • Version Comparison (5.0 ⇄ 6.0) • Smart Notes: Organize CTCAE entries chronologically, use hashtags, and more • Spreadsheet to App: Turn your spreadsheet into a custom list app—no coding required • Easy Backups: Export to XLSX or CSV for flexibility • Optimized Printing & Sharing: Export HTML files for instant viewing on any desktop or laptop, with easy letter-size printing • Timeline Management: Track and log AEs on a day-by-day basis

Screenshots

RBCX Calculation Tool4 screens
CTCAE 6 Pro4 screens

Verdict

The call

The clearest difference is in-app purchases: RBCX Calculation Tool at none against CTCAE 6 Pro's 2. CTCAE 6 Pro's advantage is update cadence (monthly vs every 15 months) and rating (5.0 vs 4.8). On price, ratings volume, ads 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. CTCAE 6 Pro sells 2 in-app purchases, starting at $1.99 per month. RBCX Calculation Tool asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

CTCAE 6 Pro holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 5 and 8 respectively.

UpkeepUpdate frequency

RBCX Calculation Tool ships an update every 15 months, CTCAE 6 Pro monthly. Both last shipped on October 11, 2026.

Scorecard4 real differences · 5 level
RBCX Calculation Tool versus CTCAE 6 Pro: the parameters behind the verdict, then further details
ParameterRBCX Calculation ToolCTCAE 6 Pro
PriceFreeFree
Rating4.8 (5 ratings)5.0 (8 ratings) — better
Number of ratings58 — better
Update frequencyEvery 15 monthsMonthly — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFree — betterFreemium
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.615.6
Further details — not scored
Size26 MB87 MB
Age rating4+17+
DeveloperTerumo BCTKoichiro Watanabe

Customer experience

RBCX Calculation Tool

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

CTCAE 6 Pro

All ratings8 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

RBCX Calculation Tool

No in-app purchases

2 purchases

CTCAE 6 Pro

Subscriptions2
  • Premium Plan – Monthly7 Days trial$1.991 Month
  • Premium Plan – Annual7 Days trial$9.991 Year

Questions

Is RBCX Calculation Tool free?
RBCX Calculation Tool is free to download, with no in-app purchases.
Is CTCAE 6 Pro free?
CTCAE 6 Pro is free to download, with in-app purchases available.
Which has better reviews, RBCX Calculation Tool or CTCAE 6 Pro?
CTCAE 6 Pro is rated higher. RBCX Calculation Tool averages 4.8 out of 5 from 5 ratings, while CTCAE 6 Pro averages 5.0 from 8 ratings.
Do RBCX Calculation Tool or CTCAE 6 Pro have ads?
Neither RBCX Calculation Tool nor CTCAE 6 Pro shows ads.
Which is updated more often, RBCX Calculation Tool or CTCAE 6 Pro?
RBCX Calculation Tool ships an update every 15 months, and CTCAE 6 Pro monthly. Most recently, RBCX Calculation Tool was updated on October 11, 2026 and CTCAE 6 Pro on October 11, 2026.

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