Comparison

CytoAtlas vs RBCX Calculation Tool

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

Head to head
About

CytoAtlas

This medical reference app offers a comprehensive cytopathology guide with over 800 high-quality images and more than 120 diagnostic entities. It features an intuitive interface for quick access to diagnostic criteria, morphologic characteristics, and relevant studies, serving as a valuable learning aid and quick reference for professionals and students.

Highlights
  • Over 800 high-quality slide images
  • 120+ diagnostic entities
  • Key morphologic characteristics
  • Intuitive interface
  • Zoom and pan image function
  • Reference to journal articles
Features
Read full description

CytoAtlas provides a quick and handy cytopathology reference tool focusing on diagnostic criteria. Content: - Over 800 high-quality slide images from exfoliative and aspiration cytology - Over 120 diagnostic entities in Cytopathology categorized by different organ systems - Slide images, including direct smears, cell blocks, and liquid-based preparations - Key morphologic characteristics, including architecture, nuclear, and cytologic features - Reference to journal articles and ancillary studies, if relevant Features - Intuitive and distraction-free interface - Chapters can be navigated by scrolling up and down - Images can be opened by tapping and selecting a diagnostic entity - Multiple images can be navigated by swiping across - High-quality slide images with zoom and pan function - Key features can be accessed by tapping an icon at the bottom - CytoAtlas requires an active internet to view images CytoAtlas is a learning aid for physicians, medical students, and technologists interested in cytopathology. It also provides a quick reference resource for common cytologic diagnoses. Created by Cytopathologists, the current database has high-quality slide images with morphologic descriptions and highlighted key features in over 100 diagnostic entities. In this initial release, we have included the most common entities encountered in the practice of exfoliative and aspiration cytology, including normal and malignant.

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.

Screenshots

CytoAtlas3 screens
RBCX Calculation Tool4 screens

Verdict

The call

The clearest difference is rating: RBCX Calculation Tool at 4.8 against CytoAtlas's 4.4. CytoAtlas's advantage is update cadence (monthly vs every 15 months). On price, ratings volume, 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

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

RBCX Calculation Tool holds the better App Store score, 4.8 against 4.4. Both are backed by a comparable volume of ratings — 13 and 6 respectively.

UpkeepUpdate frequency

CytoAtlas ships an update monthly, RBCX Calculation Tool every 15 months. Both last shipped on October 24, 2026.

Scorecard2 real differences · 8 level
CytoAtlas versus RBCX Calculation Tool: the parameters behind the verdict, then further details
ParameterCytoAtlasRBCX Calculation Tool
PriceFreeFree
Rating4.4 (13 ratings)4.8 (6 ratings) — better
Positive reviews87.5% of reviews—
Number of ratings13 — better6
Update frequencyMonthly — betterEvery 15 months
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.015.6 — better
Further details — not scored
Size10 MB26 MB
Age rating17+4+
DeveloperPROQMS LLCTerumo BCT

Customer experience

CytoAtlas

All ratings12 ratings
Positive83.3%
Neutral0.0%
Negative16.7%
Written reviews8 reviews
Positive87.5%
Neutral0.0%
Negative12.5%

RBCX Calculation Tool

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

In-app purchases

None

CytoAtlas

No in-app purchases

None

RBCX Calculation Tool

No in-app purchases

Questions

Is CytoAtlas free?
CytoAtlas is free to download, with no in-app purchases.
Is RBCX Calculation Tool free?
RBCX Calculation Tool is free to download, with no in-app purchases.
Which has better reviews, CytoAtlas or RBCX Calculation Tool?
RBCX Calculation Tool is rated higher. CytoAtlas averages 4.4 out of 5 from 13 ratings, while RBCX Calculation Tool averages 4.8 from 6 ratings.
Do CytoAtlas or RBCX Calculation Tool have ads?
Neither CytoAtlas nor RBCX Calculation Tool shows ads.
Which is updated more often, CytoAtlas or RBCX Calculation Tool?
CytoAtlas ships an update monthly, and RBCX Calculation Tool every 15 months. Most recently, CytoAtlas was updated on October 24, 2026 and RBCX Calculation Tool on October 24, 2026.

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