Comparison

VisualDx vs PneumoRecs VaxAdvisor

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

Head to head
About

VisualDx

This visual reference tool aids medical professionals in improving patient engagement and diagnostic accuracy. It utilizes AI and a vast image atlas to help build custom differentials, share patient-specific images, and access comprehensive diagnostic information. Earn continuing education credits while making better medical decisions.

Highlights
  • Build custom differentials
  • Engage patients with visual aids
  • Improve diagnostic accuracy
  • Access therapy and test options
  • Recognize infectious diseases
  • Earn CME credits
Currently charting
Read full description

VisualDx is a visual reference tool for medical professionals that leverages AI technology and a comprehensive image atlas to support faster, more confident decisions, fewer unnecessary referrals and testing, and higher patient engagement and satisfaction. With VisualDx, clinicians can: • Build dynamic differentials that evolve as you think. • Use guided support to surface clinically relevant results. • Compare diagnoses to improve decisions for your patients. • Use our AI to take a picture of your patient’s skin condition to better understand morphology and possibilities. • Engage with patients by sharing pictures of skin that reflect their disease presentation. • Access therapy and testing recommendations across over 3,500 conditions. • Quickly recognize infectious diseases and travel-related illnesses with our public health resources. • Test your diagnostic skills with our image challenges and educational resources. • Earn 0.5 AMA PRA Category 1 Credits™ for internet point of care activity with every search. See why this award-winning clinical decision support system is being used in more than 2,300 hospitals, clinics, and medical schools by physicians, nurses, students, PAs, NPs, and other healthcare professionals worldwide. VisualDx requires a subscription. Terms of Use: https://www.visualdx.com/legal/acceptable-use-policy-notice Privacy Policy: https://www.visualdx.com/legal/privacy-policy/

About

PneumoRecs VaxAdvisor

This application offers personalized pneumococcal vaccination guidance based on patient age, vaccination history, and medical conditions. It aligns with the Advisory Committee on Immunization Practices' recommendations for U.S. immunization schedules.

Highlights
  • Patient-specific vaccination recommendations
  • Age-based guidance
  • Vaccination history tracking
  • Underlying medical condition prompts
  • U.S. immunization schedule compliance
Features
Read full description

This is the PneumoRecs VaxAdvisor App created by the Centers for Disease Control and Prevention (CDC) in collaboration with the Georgia Tech Research Institute. PneumoRecs VaxAdvisor provides patient-specific pneumococcal vaccination guidance consistent with the pneumococcal vaccination recommendations of the Advisory Committee on Immunization Practices. Vaccination providers enter a patient’s age and respond to prompts about the patient’s pneumococcal vaccination history and underlying medical conditions. The app then displays patient-specific pneumococcal vaccination recommendations consistent with the recommended U.S. immunization schedule.

Screenshots

VisualDx4 screens
PneumoRecs VaxAdvisor2 screens

Verdict

The call

The clearest difference is review sentiment: VisualDx at 84% against PneumoRecs VaxAdvisor's 27%. VisualDx also leads on rating (4.4 vs 3.4) and update cadence (fortnightly vs every 3 months). PneumoRecs VaxAdvisor's advantage is in-app purchases (none vs 11). On price, 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. VisualDx sells 11 in-app purchases, starting at $39.99 per month. PneumoRecs VaxAdvisor asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

VisualDx holds the better App Store score, 4.4 against 3.4. Both are backed by a comparable volume of ratings — 186 and 60 respectively. Written reviews point the same way: 84% of VisualDx's written reviews are positive against 27% of PneumoRecs VaxAdvisor's.

UpkeepUpdate frequency

VisualDx ships an update fortnightly, PneumoRecs VaxAdvisor every 3 months. The most recent releases landed on September 29, 2026 and August 28, 2026 respectively.

Scorecard8 real differences · 3 level
VisualDx versus PneumoRecs VaxAdvisor: the parameters behind the verdict, then further details
ParameterVisualDxPneumoRecs VaxAdvisor
PriceFreeFree
Rating4.4 (186 ratings) — better3.4 (60 ratings)
Positive reviews84.3% of reviews — better26.9% of reviews
Number of ratings186 — better60
Update frequencyFortnightly — betterEvery 3 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationSubscriptionFree — better
Best chart rank#13 — better—
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.4 — better18.0
Further details — not scored
Size226 MB6 MB
Age rating17+17+
DeveloperLogical ImagesCenters For Disease Control and Prevention

Customer experience

VisualDx

All ratings186 ratings
Positive83.3%
Neutral4.8%
Negative11.8%
Written reviews102 reviews
Positive84.3%
Neutral1.0%
Negative14.7%

PneumoRecs VaxAdvisor

All ratings60 ratings
Positive58.3%
Neutral3.3%
Negative38.3%
Written reviews26 reviews
Positive26.9%
Neutral11.5%
Negative61.5%

Bugs and requests

VisualDx

Reported bugs

6 issues
  • App crashes when using quiz feature
  • CME credit claiming functionality fails
  • Subscription cancellation not processed
  • Renewal charges despite cancellation requests
  • Quiz unable to load properly
Show 1 more
  • Account access issues after payment

Requested features

6 requests
  • Make app free again (previously free)
  • Simplify subscription cancellation in-app
  • Improve quiz functionality for mobile
  • Add quiz feature to desktop version
  • Expand patient information handouts
Show 1 more
  • Better quiz image clarity and context

PneumoRecs VaxAdvisor

Not enough reviews yet to summarise bugs or requests.

In-app purchases

11 purchases

VisualDx

Subscriptions9
  • Complete (1 Month)1 Month trial$39.991 Month
  • VisualDx Core Monthly7 Days trial$39.991 Month
  • Complete+DermExpert (1 Month)1 Month trial$49.991 Month
Show 6 more
  • VisualDx Elite Monthly7 Days trial$49.991 Month
  • Add DermExpert (1 Year)$99.991 Year
  • Complete (1 Year)1 Month trial$149.991 Year
  • VisualDx Core Annual7 Days trial$249.991 Year
  • VisualDx Elite Annual7 Days trial$299.991 Year
  • Complete+DermExpert (1 Year)1 Month trial$499.991 Year
One-time2
  • Add DermExpert (1 yr)$99.99
  • Complete (1 yr)$399.99
None

PneumoRecs VaxAdvisor

No in-app purchases

Questions

Is VisualDx free?
VisualDx is free to download, with in-app purchases available.
Is PneumoRecs VaxAdvisor free?
PneumoRecs VaxAdvisor is free to download, with no in-app purchases.
Which has better reviews, VisualDx or PneumoRecs VaxAdvisor?
VisualDx is rated higher. VisualDx averages 4.4 out of 5 from 186 ratings, while PneumoRecs VaxAdvisor averages 3.4 from 60 ratings.
Do VisualDx or PneumoRecs VaxAdvisor have ads?
Neither VisualDx nor PneumoRecs VaxAdvisor shows ads.
Which is updated more often, VisualDx or PneumoRecs VaxAdvisor?
VisualDx ships an update fortnightly, and PneumoRecs VaxAdvisor every 3 months. Most recently, VisualDx was updated on September 29, 2026 and PneumoRecs VaxAdvisor on August 28, 2026.

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