Comparison

CARTOX vs Prezerve™

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

Head to head
About

CARTOX

This medical app aids clinicians in assessing and managing toxicities associated with cellular therapies, including Cytokine Release Syndrome (CRS) and Immune effector Cell-Associated Neurotoxicity Syndrome (ICANS). It provides grading methods and treatment recommendations for healthcare professionals caring for patients undergoing immune effector cell therapy.

Highlights
  • Toxicity grading
  • CRS assessment
  • ICANS assessment
  • Treatment recommendations
  • Antimicrobial prophylaxis guidance
Features
Read full description

Cellular therapies can be associated with unique, acute toxicities which can be severe or even fatal if not identified early and treated appropriately. Cytokine Release Syndrome (CRS), the most commonly observed toxicity can range in severity from low-grade constitutional symptoms to high-grade syndrome associated with life-threatening multi-organ disfunction. Neurotoxicity, originally termed CRES (CAR-Related Encephalopathy Syndrome) and now updated to ICANS (Immune effector Cell-Associated Neurotoxicity Syndrome) is the second most-common adverse even and can occur concurrently with CRS. A multi-disciplinary working group was formed to address safety issues for patients receiving cellular therapy which led to the development of new grading methods and treatment algorithms that have been incorporated into the CARTOX mobile app. The CARTOX mobile app assists with grading toxicities, managing toxicities and assists with recommendations regarding appropriate antimicrobial prophylaxis for patients who have received immune effector cell therapy. Users are more easily able to determine if the patient is having cytokine release syndrome or neurotoxicity and to grade those toxicities. Intended audience: Clinicians (physicians, nurse practitioners, physician assistants, pharmacists, nurses) who treat/care for patients receiving immune effector cells.

About

Prezerve™

This app helps bone-marrow transplant patients track and share post-transplant symptoms with their care team. It allows for real-time updates with photos and data trends, and provides an educational library on post-transplant life. Designed for adults 18 and older.

Highlights
  • Track symptoms on specific body areas
  • Share photos and real-time updates
  • Keep care teams informed with reports
  • Visualize symptom severity and frequency
  • Access post-transplant educational articles
Read full description

The Prezerve™ Post-Transplant Symptom Tracker helps track, share, and better manage transplant-related symptoms during the crucial first 100 days post-transplant. TRACK AND SHARE SYMPTOMS • Track your symptoms on specific areas of your body and share photos and additional information with your care team in real-time. KEEP YOUR CARE TEAM UPDATED •You can keep your healthcare providers updated with your symptom report that shows symptom details, photos, and visualized data trends for symptom severity and frequency. LEARN MORE ABOUT YOUR POST-TRANSPLANT LIFE • Browse the library of articles to help you better identify, understand, and then communicate symptoms with your care team. The Prezerve™ Post-Transplant Symptom Tracker Mobile App is developed for patients, 18 years and older, who have recently received a bone-marrow transplant. Disclaimer! This mobile application is intended generally for symptom tracking and user education and not as a medical device. The information on this mobile application is not a substitute for a visit or a consultation with a healthcare professional. A healthcare professional is the single best source of medical advice regarding your health. Please consult a healthcare professional if you have any questions.

Screenshots

CARTOX4 screens
Prezerve™4 screens

Verdict

The call

The clearest difference is update cadence: Prezerve™ at every 4 months against CARTOX's every 20 months. Prezerve™ also leads on iOS requirement (16.0 vs 26.4). CARTOX's advantage is rating (5.0 vs 4.8). 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

CARTOX holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 6 and 9 respectively.

UpkeepUpdate frequency

CARTOX ships an update every 20 months, Prezerve™ every 4 months. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

Scorecard3 real differences · 7 level
CARTOX versus Prezerve™: the parameters behind the verdict, then further details
ParameterCARTOXPrezerve™
PriceFreeFree
Rating5.0 (6 ratings) — better4.8 (9 ratings)
Positive reviews100.0% of reviews—
Number of ratings69 — better
Update frequencyEvery 20 monthsEvery 4 months — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreeFree
DevicesiPhone, iPad — betteriPhone
Requires iOS26.416.0 — better
Further details — not scored
Size6 MB53 MB
Age rating17+17+
DeveloperMD Anderson Cancer CenterIncyte Corporation

Customer experience

CARTOX

All ratings6 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Prezerve™

All ratings9 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

CARTOX

No in-app purchases

None

Prezerve™

No in-app purchases

Questions

Is CARTOX free?
CARTOX is free to download, with no in-app purchases.
Is Prezerve™ free?
Prezerve™ is free to download, with no in-app purchases.
Which has better reviews, CARTOX or Prezerve™?
CARTOX is rated higher. CARTOX averages 5.0 out of 5 from 6 ratings, while Prezerve™ averages 4.8 from 9 ratings.
Do CARTOX or Prezerve™ have ads?
Neither CARTOX nor Prezerve™ shows ads.
Which is updated more often, CARTOX or Prezerve™?
CARTOX ships an update every 20 months, and Prezerve™ every 4 months. Most recently, CARTOX was updated on November 3, 2026 and Prezerve™ on October 30, 2026.

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